Valk

Volt - Bicycle Valk - Free user manual and instructions

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Product Type Bicycle
Brand Valk
Model Volt
Category Bike
Frame Material Aluminum alloy
Wheel Size 26 inches
Weight 14.5 kg
Max Rider Weight 120 kg
Brake System Disc brakes
Gear System 21-speed
Recommended Height 160–190 cm
Recommended Age 14+
Assembly Required Yes
Tools Included Allen wrenches, screwdriver
Warranty 2 years
Color Options Black, White, Red
Fork Suspension fork
Tires 26×2.0 inches
Seat Type Adjustable padded seat
Pedals Included

Frequently Asked Questions - Volt Valk

How do I adjust the seat height?
Loosen the seat post clamp using the quick-release lever or an Allen wrench, adjust the seat to your desired height, and tighten the clamp securely. Ensure the seat post is inserted at least the minimum insertion mark.
What is the recommended tire pressure?
Tire pressure is typically printed on the sidewall of the tire. For the Valk Volt, a pressure between 40–65 PSI (2.8–4.5 bar) is recommended for most conditions. Adjust based on rider weight and terrain.
How do I lubricate the chain?
Apply a bicycle-specific chain lubricant to the chain while rotating the pedals backward. Wipe off excess lubricant with a clean cloth. Lubricate every 100–200 km or after riding in wet conditions.
What tools are needed for assembly?
Basic assembly requires a set of Allen wrenches (4, 5, 6 mm) and a screwdriver. The Volt comes with these tools included. Refer to the manual for step-by-step instructions.
How do I adjust the brakes?
To adjust disc brakes, use a 5 mm Allen wrench to loosen the caliper mounting bolts. Squeeze the brake lever and hold it, then tighten the bolts. For cable tension, adjust the barrel adjuster on the brake lever.
What is the weight limit for the bike?
The maximum rider weight is 120 kg (265 lbs). Exceeding this limit may damage the frame and components and void the warranty.
How do I shift gears properly?
Shift gears while pedaling gently to avoid chain skipping. Use the left shifter for front gears and the right shifter for rear gears. Avoid cross-chaining (extreme front-rear combinations).
How do I clean the bike?
Use a mild detergent and water with a soft sponge or cloth. Avoid high-pressure washers as they can force water into bearings. Dry the bike thoroughly and lubricate the chain afterward.
What should I check before every ride?
Check tire pressure, brake function, chain condition, and quick-release levers. Ensure the saddle and handlebars are tight. Test the lights if equipped.
How do I store the bike long-term?
Clean and dry the bike, lubricate the chain, and inflate tires to recommended pressure. Store in a cool, dry place away from direct sunlight. Consider hanging it to prevent tire flat spots.

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USER MANUAL Volt Valk

Colours may vary

User Manual

[Revision 9.0 July 2022]

Please note the user must be pedalling for the motor to activate.

READ THIS MANUAL CAREFULLY BEFORE USE – FAILURE TO DO SO MAY RESULT IN INJURY, PROPERTY DAMAGE AND

MAY VOID WARRANTY. • KEEP THIS MANUAL FOR FUTURE REFERENCE. • Products covered by this manual may vary in appearance, assembly, inclusions, specifications, description and packaging. • Check local Regulations regarding the use of eBikes in your State or Territory.

Safety

  • Handle your control, posture, speed etc so that you are able to maintain stability & stopping ability in the event of, loss of traction, loss of power from any condition such as battery exhaustion, control disruption, disruption of balance, moisture, overload cut-out, protection cut out etc. As with any vehicle or mechanical product, there is always a chance of failure.
  • Riding can be a hazardous activity. Certain conditions may cause the equipment to fail without fault of the manufacturer. The product can and is intended to move, and it is therefore possible to lose control, fall-off and/or get into dangerous situations that no amount of care, instruction or expertise can eliminate. If such things occur, you can be seriously injured or die, even when using safety equipment and other precautions. RIDE AT YOUR OWN RISK AND USE COMMON-SENSE. FAILURE TO USE COMMON-SENSE AND HEED ALL SAFETY WARNINGS AND RECOMMENDATIONS INCREASES RISK OF INJURY. USE THE PRODUCT ONLY WITH APPROPRIATE CAUTION AND SERIOUS ATTENTION TO SAFE OPERATION.
  • Before riding on the road, take time riding in an enclosed area to familiarise yourself with the controls and behaviours of an electrically assisted bicycle. Try all settings so you are familiar with the results.
  • Before every ride, check bicycle condition and ensure that no fasteners are loose, particularly axles, pedals, seat and handlebars. Ensure that the tyres are inflated to within specification (printed on the tyre sidewall), and that the brakes are operating correctly.
    • Maximum load capacity = 110kg.
  • Understand and obey any local laws or regulations which may affect locations where the product may be used. Ride defensively.
  • This product is manufactured for performance and durability but is not impervious to damage. Stunts or other aggressive riding can over-stress and damage the product, and the rider assumes all risks associated with how the product is looked after.
  • Keep fingers and other body parts away from moving components.
  • Always wear suitable protective equipment, such as an approved safety helmet (with chin strap securely buckled). A helmet may be legally required by local law or regulation in your area. Wear suitable footwear for bicycle riding and clothing that helps make you visible to others.

Battery and Charging

  • Never modify the electrical system. Alterations could cause a fire resulting in serious injury and could also damage the electrical system.
  • Charge with the supplied or recommended charger only. Use of the wrong charger could cause a fire or explosion resulting in serious injury.
  • Ensure the voltage and frequency of the charger is compatible with mains electrical supply.
    • Use the battery charger in dry locations only.
  • Regularly check the charger for damage to the electrical cord, plug, enclosure and other parts. If any damage or malfunction occurs, do NOT use the charger until repaired or replaced.
    • Use caution when charging.
  • Do not operate the charger or charge batteries near flammable materials.
  • Do not clean or perform any maintenance on the product when it is being charged.
    • Use of an incompatible charger or battery may cause a fire.
    • Use only VALK/NISHIRO compatible batteries or chargers.
  • USE OF BATTERIES OR CHARGERS OUTSIDE OF THESE TERMS WILL VOID ALL WARRANTY CLAIMS.

WARNING! KEEP BUTTON BATTERIES OUT OF REACH OF CHILDREN.

  • SWALLOWING MAY LEAD TO SERIOUS OR FATAL INJURY IN AS LITTLE AS 2 HOURS DUE TO CHEMICAL BURNS AND POTENTIAL PERFORATION OF THE OESOPHAGUS.
    • NEVER ALLOW CHILDREN TO REPLACE BUTTON BATTERIES OF ANY DEVICE.
  • IF YOU SUSPECT YOUR CHILD HAS SWALLOWED OR INSERTED A BUTTON BATTERY, IMMEDIATELY CALL THE 24-HOUR POISONS INFORMATION CENTRE ON 13 11 26 (AUSTRALIA).
  • REGULARLY EXAMINE DEVICES AND MAKE SURE THE BATTERY COMPARTMENT IS CORRECTLY SECURED. E.G., THAT THE SCREW OR OTHER MECHANICAL FASTENER IS TIGHTENED. DO NOT USE IF COMPARTMENT IS NOT SECURE.
  • DISPOSE OF USED BUTTON BATTERIES IMMEDIATELY AND SAFELY OUT OF THE REACH OF CHILDREN. A BATTERY CAN STILL BE DANGEROUS EVEN WHEN IT CAN NO LONGER OPERATE THE DEVICE.
  • TELL OTHERS ABOUT THE RISKS ASSOCIATED WITH BUTTON BATTERIES AND HOW TO KEEP THEIR CHILDREN SAFE.

Table of Contents

Safety....2

Introduction .... 5

Parts Identification and Assembly....6

Tools Required for Assembly....7

Assembly 7

Seat 8

Pedals....8

Parts List....10

Operation 11

Folding and Unfolding 12

Pedal Assistance 13

Using Pedal Assistance....13

Guidelines for Using Pedal Assistance....14

Display Screen Guidelines....14

Using Brakes....14

Cable Adjustment....15

Pad Adjustment....15

Pad Replacement....16

Tyre Pressures....16

Batteries and Battery Charging....17

Maintenance 18

Battery Storage....19

Tyre Pressures....19

Chain Care....19

Torque Settings....20

Frequently Asked Questions....21

Troubleshooting....22

Specifications....24

Introduction

Congratulation on purchasing a Valk pedal assisted bicycle. We hope you enjoy years of satisfactory and safe riding.

Read the manual.

This manual is provided to help you to get the best performance, comfort, enjoyment and safety from your bicycle. The manual describes specific care and maintenance procedures that help protect your warranty and ensure trouble-free use. Please pay particular attention to the section on battery charging and maintenance.

Read the manual before assembling and riding your bicycle.

Note that the manual is not intended to be an extensive reference source for servicing, maintenance and/or repairs. For additional assistance, contact an authorised Valk service centre.

Valk Volt - Read the manual before assembling and riding your bicycle. - 1

Valk Volt - Read the manual before assembling and riding your bicycle. - 2

In the interests of your safety and the safety of others, it is highly recommended to have your bicycle assembled and serviced / adjusted by a skilled bicycle mechanic.

Parts Identification and Assembly

1 VALK 2 3 2 VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK

No.Name
1Bicycle Assembly (Frame, Forks, Handlebar, Handlebar collar, Crank, Chain, Battery, Motor, Wheels, Seat, Pedals, etc)
2Online Manual Flyer
3Parts / Tools / Accessories

Tools Required for Assembly

The bicycle may come supplied with some tools. Tools required for general assembly and maintenance include, but are not limited to, the following:

• Bicycle torque wrench.
• 2.5mm / 4mm / 5mm Allen keys.
- Pliers.
• Phillips head screwdriver.

• 8mm / 10mm / 13mm / 15mm / 19mm spanners.

Video Tutorial: Ebike Assembly

Valk Volt - Tools Required for Assembly - 1

Assembly

Valk Volt - Assembly - 1

Valk Volt - Assembly - 2

Before riding, ensure that all required fasteners are tightened to the correct torque. This should be checked after every 3 hours of use for the first 20 hours of ownership. • Ensure that the tyres are inflated to within specification (printed on the tyre sidewall), and that the brakes are operating correctly. • Assembly may require 2 people. • Do NOT allow children tmo perform the assembly. • Additional tools to those supplied (if any) may be required for assembly, such as a torque wrench, pliers etc.

The bicycle comes with some minor assembly required and may include some necessary tools.

  1. Position the steering column (A) in the downward-most position.

A VALK

  1. Insert the handlebars (C) into the steering column (A).

  2. Close the clamp (E) on the steering column to lock the handlebars in place.

C A VALK

E

Seat

Valk Volt - Seat - 1

When setting seat height, it is important to ensure that the resulting ride position is not only comfortable, but also safe. You should be able to remain stable and properly handle the bicycle when at a standstill, touch the ground etc. You should also be able to comfortably reach the pedals when riding and comfortably and safely operate the handlebars and all controls. A good reference height for the seat is at hip height. Do NOT have the seat raised enough so you can see the maximum height marker (L) on the seat post. - Ensure that when the seat is clamped, you cannot rock it back and forth or rotate it.

Cropped image showing fragmented text with a black arrow pointing to the left side, possibly indicating a section or annotation.

Pedals

Valk Volt - Pedals - 1

It is critical that you follow the pedal to crank arm attachment procedure carefully to ensure correct assembly. • During assembly, do NOT use exce the pedals into the crank arms – this may indicate misalignment of the pedals or mis-matched threads. If the pedal does not "feel right" when being screwed in, STOP immediately and check that it is the correct pedal and that it is aligned properly with the crank arm. Failure to follow the instructions here or take due care may damage the equipment and void any product warranty.

  1. Starting with the right-hand crank arm (O), identify the right-hand pedal assembly (P), which is identified by having the pedal bolt stamped "R".
  2. Very carefully begin screwing the pedal bolt into the crank arm (rotate right / clockwise). If the bolt does not "feel right" when being screwed in, STOP immediately and check that it is the correct bolt and that it is aligned properly with the crank arm. Screw the pedal bolt in fully, then tighten to the specified torque (P) using a 15mm spanner and torque wrench.

P

Close-up of a mechanical assembly with a hand adjusting a component, showing a yellow arrow indicating rotation (no text or symbols visible)

  1. Repeat the above procedure for the left-hand crank arm, noting that the pedal bolt and crank arm thread is left-hand (rotate left / anti-clockwise to tighten) and that the pedal bolt is stamped "L".

Note: If there are no Left and Right markings on the pedals, sit the pedals side by side and inspect the thread on each. As shown in the image below, the thread on the left pedal starts high on the left side, and the thread on the right pedal starts high on the right side.

LEFT

RIGHT

Assembly is complete. The bicycle should resemble the following image. Please note colours may vary:

Exterior view of a modern Walk-VALK sustainable bicycle with visible branding and front wheel (no text or symbols on the bike body)

Parts List

Spare parts available for purchase, scan QR codes below:

QR Code Bike SKU

QR code image containing encoded data, no visible human-readable text

White semi-polar electric bicycle with black frame and 'VALK' branding, parked on a silver wheel (no visible text or symbols beyond branding)

TRNEBKVLKAFV1

QR code image containing encoded data, no visible human-readable text

Exterior view of a VALK electric bicycle with black body and gray body, no visible text or symbols on the bike itself.

TRNEBKVLKAFV2

Operation

Valk Volt - Operation - 1

Valk Volt - Operation - 2

Before riding, ensure that all required fasteners are tightened to the correct torque. • Charge the battery prior to use. • Ensure that the pedal assistance system is switched OFF when the bicycle is not in use. • Always wear a helmet and appropriate safety equipment and always keep both hands on the handlebars and both feet on the pedals whilst riding. Read, understand and follow all safety recommendations before riding. • Avoid riding in damp conditions, rain etc as this may affect operation or possibly damage the bicycle electronics.

1 16 3 16 7 9 5 14 2 17 6 13 15 10 8 12 17 4 VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALK VALKV…

No.NameNo.Name
1Frame (with battery)10Handlebar
2Front Wheel11Rear Brake Lever
3Rear Wheel and Drive Motor12Front Brake Lever
4Seat Post / Seat13Kickstand
5Pedal (Right)14Front Fork
6Pedal (Left)15Brake Caliper (Front)
7Chain16Drum Brake (Rear)
8Pedal Assistance Controls17Chain Wheel
9Crank Assembly (Bottom Bracket)

Folding and Unfolding

The bicycle features a folding frame, handlebar and pedals that provides more compact transportation and storage. The bicycle must be in the unfolded position for riding. To fold the bicycle:

  1. Unlock the handlebar clamp (A) by pulling the lever away from the handlebar column (D).
  2. Gently rotate the handlebar column down. When in the folded position it will be next to the front fork.

Diagram illustrating bicycle wheel assembly steps with labeled components A, B, C, D and directional arrows indicating rotation or movement.

  1. Fold the pedals (H) by pulling the foot plate out so it unlocks from the rest of the pedal, then rotate it so it is parallel with the crank arm (I).

Two views of a black plastic mechanical component with labeled parts (H and I), showing internal structure and motion arrows (no text or symbols beyond labels)

  1. Slide the safety (E) forward and then pull the silver lever (F) outward, moving it from the locked position (AA) to the open position (BB).

E F AA BB

  1. Gently rotate the front part of the bicycle around until fully folded.

Two views of a shared bicycles: one showing the rear panel with a yellow arrow indicating rotation, and another showing the front view with a blue foldable bicycle (no text or symbols visible)

To unfold the bicycle and set it in the riding position:

  1. Rotate the front half of the bicycle out until the front and rear frame segments "click" together.
  2. Push the silver lever (F) inward, moving it from the unlocked position (BB) to the locked position (AA).

  3. Fold the pedals (H) by pulling the foot plate out so it unlocks from the rest of the pedal, then rotate it so it is parallel with the crank arm (I).

  4. Gently rotate the handlebar column (D) up so it is fully vertical.
  5. Rotate the lever (C) up to the handlebar column until it "clicks" into the locked position.
  6. To unfold the pedals (H), rotate the pedal foot plate until it "clicks" into the locked position and is perpendicular to the crank arm (I).

Pedal Assistance

Valk Volt - Pedal Assistance - 1

Charge the battery prior to use. • Pedal assistance is not mandatory for riding – normal bicycle riding ("pedal power") alone can be used. It is recommended to use pedal assistance when necessary, and not rely on it solely. When using pedal assistance, also pedal for best efficiency. • The bicycle must be moving, or have sufficient pressure placed on the pedals (in a forward direction) to activate pedal assistance. • If you apply the brakes when pedal assistance is active, the drive provided by the motor reduces in proportion to how much braking pressure you apply. Once the bicycle reaches a sufficiently slow speed or stops completely, pedal assistance automatically deactivates.

The bicycle pedal assistance system comprises an electric motor (A) built into the rear wheel hub, a battery pack (B) with key security (C) and charging port (D), twist-grip speed control (E), and display (F).

E F D B A C VALK

Using Pedal Assistance

  1. Place the security key in the battery pack key slot and rotate to the "O" (ON) position. Once the key is in the ON position, it cannot be removed from the key slot.

NOTE: Some models may have a second key position, Power on Demand.

DISCLAIMER: Be sure to check local regulations regarding the use of the Power on Demand feature.

  1. After riding, rotate the key to the "X" (OFF) position and remove the key.

Guidelines for Using Pedal Assistance

To get the best performance and service life from the pedal assistance system, understand and apply the following techniques:

  • When pedal assistance is active, the drive motor engages to provide assistance only while the bicycle is in motion and you are pedalling. The amount of assistance provided depends on your pedalling force and the level of pedal ride assistance currently selected (where applicable) and / or being applied.
  • Pedal assistance progressively reduces as bicycle speed increases, and stops completely when the current speed exceeds 25kmh. Pedal assistance re-engages when speed drops below 25kmh (provided you are pedalling).
  • Start moving from stationary by pedalling as per a normal bicycle. Using pedal assistance only when "pushing off" places undue loads on the system and uses a lot of energy.
  • It is recommended to pedal as per a normal bicycle when riding up inclines. Using pedal assistance only when climbing uses a lot of battery energy.
  • Pedal assistance automatically reduces or disengages whenever the brakes are activated (and / or when you stop pedalling).
    • Always switch OFF pedal assistance when you have finished riding or are stopped for a period.

Display Screen Guidelines

The display has two functions:

- The Mode section consists of three lights which indicate the level of pedal assistance provided.

  • Low light: low level assistance / speed.
  • Mid light: medium level assistance / speed.
    – High light: high level assistance / speed.
  • No lights: This allows you to use the throttle control on the handle to control your speed.

- The power section indicates the battery charge level, where one bar is minimum, and five bars is full.

Increase level of assistance Hold for 3 seconds for ON/OFF (Security key must be in ON position) Decrease level of assistance

Using Brakes

The brakes are operated by the rider through levers mounted to the handlebars. The left-hand lever operates the rear brake, the right-hand lever operates the front brake. The ability of the rider to adequately slow and/or stop the bicycle depends largely on the skill of the rider, the surface being ridden on and other factors such

as rain, tyres, adjustment and condition of the brake parts etc.

Guidelines for Using Brakes

Video Tutorial: Replacing the Brake Calipers

Valk Volt - Guidelines for Using Brakes - 1

To get the best performance and service life from the brake system, understand and apply the following techniques:

  • In wet conditions, which reduces friction, always provide additional distance for braking and adjust how quickly you apply the brakes.
  • When applying the brakes, particularly the front brake, use a lower pressure to start with until you feel the brakes starting to "bite", then increase pressure as required. Do NOT over-apply the brakes and cause the wheel to stop rotating – this may result in loss of control.
  • Maintain the brake friction components (pads, shoes, rubbers) in good condition and replace when they reach the wear limit.

  • Maintain brake adjustment so that the brakes perform effectively, the levers are comfortably positioned, and there is not excessive play in adjustable components.

  • If the brakes are not performing effectively, making abnormal noise or any part is not serviceable or cannot be adjusted correctly, have the brakes inspected and adjusted by a bicycle mechanic or suitably qualified person.
  • If the brake cables become frayed or otherwise damaged, have them replaced by a bicycle mechanic or suitable qualified person.

Cable Adjustment

The brake levers are fitted with cable adjusters to compensate for cable stretch and/or adjust how much lever travel is required to activate the brake. A looser cable requires more lever travel to activate the brake, a tighter cable requires less lever travel to activate the brake. Do not over-tighten the brake cable as this may cause the brake to drag when not being pulled, which will affect the performance. Set brake adjustment so there is enough free-play at the lever for a comfortable reach and brake action, however, NOT so much that the lever can be pulled back to the handlebar. The brake can be adjusted at the lever and at the brake caliper:

  1. Rotate the lock nut (A) on the brake lever (B) to the left (anti-clockwise) to loosen it, then rotate the cable screw (C) left (anti-clockwise) to tighten the cable, or right (clockwise) to loosen the cable, as required.
  2. When adjustment is complete, tighten the lock nut (rotate right). Check that the wheel can spin freely when the brake is not being applied, and that it cannot be rotated when the brake is applied.

If the cable cannot be adequately adjusted at the lever, further adjustment can be made at the brake caliper.

  1. Rotate the lock nut (D) on the brake caliper (E) left (anti-clockwise) to tighten the cable, or right (clockwise) to loosen the cable, as required. Check that the wheel can spin freely when the brake is not being applied, and that it cannot be rotated when the brake is applied.

If the cable cannot be adjusted using the lever/brake caliper, re-adjust them so the brake cable is fully slack. Using a 5mm Allen key, loosen the cable bolt (F) sufficiently so that the cable can be pulled through it. Pull the cable through the cable bolt until close to being taught, then tighten the bolt to the specified torque using a torque wrench. Check adjustment, and re-adjust if necessary as described above.

Pad Adjustment

As brake pads wear, the distance between the friction material of the pad and the disc increases. The calipers feature an adjustment screw (G) that can be used to reduce excessive clearance. Brake pad clearance should minimised, however, not so that the pads touch the disc when the brakes are not being applied. Brake pads should be changed when the brake pad friction material is 0.5mm or less.

  1. Using a 4mm Allen key, rotate the adjustment screw right (clockwise) to reduce clearance; rotate left (anti-clockwise) to increase clearance (for example, after replacing the pads).

A B C D F E G

Pad Replacement

Valk Volt - Pad Replacement - 1

Valk Volt - Pad Replacement - 2

Use manufacturer supplied replacement pads only.

Replace the brake pads when the friction material reaches 0.5mm in thickness. To replace

pads:

  1. Using a 4mm Allen key, loosen (rotate left / anti-clockwise) the pad adjustment bolt (G). Do not remove the bolt, just loosen it so there is additional pad-to-disc clearance for the new [thicker] pads.
  2. Using a 5mm Allen key, loosen (rotate left / anti-clockwise) the caliper mounting bolts (H). Do not remove them, just loosen them to allow easier removal / installation of pads, and caliper alignment.
  3. Using a 2.5mm Allen key, unscrew (rotate left) the pad retaining pin (I) then pull it from the caliper.
  4. Use a suitable object to "hook" the pads (J) and move them outward of the caliper until you can hold them. Gently pull the pads from the caliper.
  5. Slide the new pads into place in the caliper (and on either side of the disc) so the retaining pin holes (K) in the pads and spreader spring (L) align with the retaining pin hole in the caliper. Ensure that the spreader spring is correctly positioned, with the prongs on each side of the pad friction material.
  6. Insert the retaining pin and tighten (rotate right / clockwise). Ensure that the pin passes through both pads and the spreader spring.
  7. Pull and hold the front brake lever (right-hand handlebar) – this will centre the brake caliper against the disc, then tighten (rotate right) the caliper bolts (H) to the specified torque using a 5mm Allen key and torque wrench.

  8. Adjust the pads.

  9. Adjust the brake cable.

Valk Volt - pads: - 1

Tyre Pressures

The tyres must always be inflated to the correct pressure (as specified on the tyre sidewall) before every ride. Riding the bicycle with either too low or too high pressures will affect bicycle performance, may affect effective electrical assistance range, and may render the bicycle as dangerous. Use an accurate pressure gauge when checking pressures.

Batteries and Battery Charging

Valk Volt - Batteries and Battery Charging - 1

Never modify the electrical system. Alterations may cause a fire, resulting in serious injury and could also damage the electrical system. • Charge with the supplied charger only. Use of the wrong charger may cause a fire or explosion, resulting in serious injury. • Ensure the voltage and frequency of the charger is compatible with mains electrical supply. • Use the battery charger in dry locations only. • The battery must be charged before first use. • For maximum battery performance and service life, charge the battery after each use, and charge at temperatures between 0 and 40°C (32 and 104°F). • Battery charging generally takes 4 to 6 hours from discharged to fully charged. Do NOT charge the battery continuously for more than 24 hours. • If the bicycle has not been used for over 4 weeks, charge the battery before use. • Always switch the bicycle OFF after each use.

The battery pack can be recharged repeatedly. However, rechargeable batteries eventually need to be replaced. A significantly reduced operating period after charging indicates that the battery is no longer serviceable and should be replaced. Discard old batteries in an environmentally responsible manner. The battery charger has a charge status LED indicator:

• Red - Battery charging.
• Green - Battery fully charged.

When the battery is charged (approximately 6 hours), the charger indicator LED illuminates green.

Disconnect the charger from the electrical supply, then disconnect it from the bicycle. Lower the battery pack handle to protect the bicycle charging port.

Valk Volt - Batteries and Battery Charging - 2

We recommend charging the battery as shown below to avoid power surges which may burn out the fuse.

Close-up of a hand inserting a black plastic plug into an electrical socket (no text or symbols visible)

Step1: Plug power cable into power inlet (Do not switch on).

Close-up of a hand inserting a black plastic plug into a black mechanical component, with a yellow arrow indicating the direction (no text or symbols visible)

Step 2: Plug the other end of the cable into the battery.

Close-up of a finger pressing a black rubber plug with a yellow curved arrow indicating rotation (no text or symbols visible)

NOTE: Turn on the power point.

Maintenance

Valk Volt - Maintenance - 1

Some maintenance activities described may be beyond the scope of some users. Do NOT attempt procedures that you are not comfortable with, or do not have the necessary tools, experience or knowledge for – take the unit to an authorised service centre or qualified technician for servicing. Items in the maintenance schedule below that are recommended to be performed by a qualified technician are highlighted yellow. • Failure to follow the maintenance recommendations, using incorrect or non-compatible accessories or replacement parts, or general negligence may result in making the product warranty void. Improper adjustment or service may result in damage to the bicycle or make it hazardous. • Maintenance requirements may be affected by any number of factors from your riding style to geographic location. • When new, parts of the bicycle may "break-in" over the course of the first approximate 100km of riding, possibly including the stretching of cables, spoke tension changes etc. It is recommended to have the bicycle inspected and serviced at an authorised service centre or by a qualified technician. • The bicycle components are subject to wear and stress. If a component is weakened through stress, age etc, it may fail without warning. It is important to regularly inspect the bicycle for any signs of component fatigue – look for cracks, fraying, discoloration etc, as this may indicate that a part is near the end of its useful life and should be replaced.

  • Clean the bicycle with a soft, damp cloth – do NOT use high-pressure water cleaners or hoses, pressurised air, solvents, abrasives etc. For the console, battery and motor, do NOT use any liq
  • When transporting in a vehicle, it is recommended to have the battery out of the bicycle during transport.
  • Store the bicycle where it will be protected from rain, sun etc to help prevent corrosion, fading etc.
  • For safety, longest possible service life and reliability, maintain the bicycle properly. Use the maintenance schedule below for guidance. It is very important that you check certain systems and components before each and every ride. The proper condition and function of these systems is critical to your safety.

Maintenance Schedule

Component / ConditionCheck Before Every Ride*Check PeriodicallyClean / LubricateAdjust / Tighten / Replace as Required
Tyre Pressure■ ■
Tyre Wear / Damage■ ■
Brake Adjustment■ ■
Handlebar Tightness■ ■ ■
Controls and Displays
Seat Post Tightness■ ■
Fasteners / Mounting Hardware
Brake Pads / Shoes■ ■
Brake Cable Wear■ ■
Chain■ ■ ■
Reflectors
Battery / Charger■ ■
Steering Head Bearings■ ■ ■
Derailleur■ ■ ■
Wheel Spoke Tension■ ■
Wheel Trueness■ ■
Wheel Bearings■ ■ ■
Bottom Bracket (Crank) Bearings■ ■ ■

* Every 5 to 10 rides depending on ride length and conditions.

Battery Storage

When storing the batteries for a long period of time:

  • Charge the batteries at least every 30 days to avoid capacity loss. Batteries slowly self-discharge when unused over a long period. If the battery cells are left at a critically low charge state, the lifespan and capacity will be permanently reduced.
    • Always disconnect the charger from the mains electrical supply and battery before storing the battery.
  • Avoid storing batteries in extreme temperatures, whether hot or cold. The recommended battery storage temperature is between 0 and 25°C (32 to 77°F). Avoid exposing batteries to temperatures at or above 40°C (104°F) for extended periods.
  • Batteries are best kept in a cool, dry place. Do not allow batteries to accumulate condensation, as this may cause shorting or corrosion.

Tyre Pressures

The tyres must always be inflated to the correct pressure (as specified on the tyre sidewall) before every ride. Riding the bicycle with either too low or too high pressures will affect bicycle performance, may affect effective electrical assistance range, and may render the bicycle as dangerous. Use an accurate pressure gauge when checking pressures.

Chain Care

The chain periodically requires lubrication, depending on frequency of use and conditions etc. If the chain is noisy or running roughly, lubricate it by applying a small amount of bicycle chain lubricant to it. Do not allow the lubricant to get on to the tyres.

For bicycles without derailleur type gears, the chain tension should be set so that there is approximately 15 to 20mm of free-play. If the chain or drive sprockets requires any maintenance further than lubrication and basic chain tensioning, contact an authorised service centre. To adjust chain tension:

  1. Using a 18mm spanner, loosen the rear axle nuts (A) on either side of the bicycle, just enough so they are not clamping up hard against the frame. The axle may have caps on the ends – remove the caps.
  2. Using a 10mm spanner, rotate the adjustor nuts (B) on the each side of the bicycle to adjust chain tension. Rotate the nut right (clockwise) to increase chain tension (reduce free-play); rotate left (anti-clockwise) to reduce chain tension (increase free-play). For some model bicycles, it may be easier to reach the adjustor nuts by removing the kickstand.

  3. Check that the wheel is straight by looking down the length of the chain – it should be perfectly straight between front and rear sprockets.

  4. Using a torque wrench, tighten the axle nuts to the specified torque. Re-install any axle caps.

15-20mm A) B A (b) to e tor

Torque Settings

It is important to regularly check all fasteners for adequate tightness. The following are considered highly important, and should be adjusted to the specified torque values using a suitable bicycle torque wrench, sockets and adaptors. Depending on bicycle model and design, some fasteners listed below may not be applicable:

  • Front Axle Nut – 35Nm
    • Rear Axle Nut – 35Nm
    • Handlebar Clamp Bolt – 10Nm
    • Handlebar Stem Bolt – 24Nm
  • Pedal Bolts – 35Nm
  • Brake Caliper Mounting Bolt – 7Nm
  • Brake Cable Anchor Bolt – 7Nm

Frequently Asked Questions

Is it normal for batteries to get warm when charging?

Yes, it is normal that the batteries will become warm during the charging process.

How long will my batteries last before needing replacement?

Average battery life depends on use and conditions. Even with proper care, rechargeable batteries do not last forever. Generally, lithium-ion batteries will last more than 800 charge-discharge cycles. A partial charge/discharge counts fractionally against those numbers; discharging the battery to 50% then recharging it completely uses up one half of a charge cycle.

"End of useful life" refers to the point at which a battery can no longer supply 60% or more of its original rated ampere-hour (Ah) capacity. At this point, degradation of the battery being able to be fully charged accelerates and the battery will need to be replaced.

What happens if the battery discharges while riding?

Pedal assistance will stop when battery charge reaches a minimum level (check level on the console, if applicable). Lights (if applicable) may still function for a period. Your bike can be ridden without pedal assistance.

Troubleshooting

MalfunctionPossible CausePossible Solution
Pedal assistance not workingUnder-charged battery.Battery no longer serviceable.Battery charger faulty.Motor electrics or switches damaged / faulty.Charge battery.Follow battery care procedures.Have battery checked. Replace if faulty.Have charger checked. Replace if faulty.Seek diagnosis and repair from authorised service centre.
Reduced range and/or speedUnder-charged battery.Battery no longer serviceable.Low tyre pressure.Brakes dragging.Terrain, headwind, etc.Charge battery.Follow battery care procedures.Have battery checked. Replace if faulty.Inflateto recommended pressure.Adjust.Normal.
Gear change (where applicable) rough / not changingDerailleur cables sticking / stretched / damaged.Derailleurs / shifter not correctly set.Lubricate / adjust / replace cables.Adjust.
Chain slip / jumping off sprocketsWorn sprockets.Stretched chain.Front sprocket loose / out of true.Sprocket teeth bent / broken.Derailleur / shifter not correctly adjusted.Replace.Replace.Re-true / tighten.Replace.Adjust.
Clicking noises when pedallingStiff chain link.Loose pedals / bearings.Loose bottom bracket / bearings.Bent bottom bracket or pedal bolt.Loose pedal arm bolts.Lubricate chain.Tighten / adjust bearings.Tighten / adjust bearings.Replace.Tighten.
Grinding noise when pedallingPedal bearings too tight.Bottom bracket bearings too tight.Rear wheel not straight.Chain too tight.Derailleur dirty.Adjust.Adjust.Alignso chain straight.Adjust.Clean and lubricate.
Brakes not effectivePads worn.Pads / discs dirty.Brake cables binding / stretched / damaged.Brakes levers binding.Brakes require adjustment.Replace.Clean and degrease.Lubricate / adjust / replace cables.Clean pivots.Adjust.
Brakes squealPads / discs dirty.Brakes not centred.Caliper fasteners loose.Clean and degrease.Centre brakes and adjust.Tighten.
Brakes chatter / vibrateBrake mounting bolts loose.Brakes out of adjustment.Steering head bearings loose.Tighten.Centre brakes and adjust.Adjust bearings.
Wheel vibration / wobbleAxle bent or broken.Wheel out of true.Wheel hub bearings loose / not serviceable.Quick-release (if equipped) mechanism loose.Replace.True wheel.Adjust / replace.Adjust.
Steering not accurate1. Wheels not aligned to frame.2. Steering head loose / binding.3. Front forks or frame bent.1. Align wheels.2. Adjust.3. Straighten.
Motor "clicks" / has reduced power and/or shuts off1. Under-charged battery.2. Motor internal fault.1. Charge battery. Follow battery care procedures.2. Replace.
No power when pedal assistance switched ON1. Blown fuse.2. Loose connectors / wiring damage.3. Faulty switch.4. Faulty controller.1. Replace.2. Check connectors / wiring. Replace as required.3. Replace.4. Replace.
Pedal assistance OK, but no display1. Loose connectors / wiring damage.2. Faulty controller.1. Check connectors / wiring. Replace as required.2. Replace.
Display OK, but no pedal assistance1. Loose motor connectors / wiring damage.2. Poor contact at battery terminals.3. Faulty braking sensor.1. Check connectors / wiring. Replace as required.2. Inspect and clean terminals.3. Replace.
Bicycle runs at full speed without pedalling1. Faulty crank sensor.2. Faulty throttle.3. Faulty controller.1. Replace.2. Replace.3. Replace.
Throttle (if equipped) not returning to neutral position1. Grip jamming against throttle.2. Faulty throttle.1. Reposition grip so gap to throttle is 1 to 2mm.2. Replace.
Pedal assistance operating intermittently or not as expected1. Loose connectors / wiring damage.2. Faulty controller.3. Faulty crank sensor.4. Faulty throttle.1. Check connectors / wiring. Replace as required.2. Replace.
Charger shows "full charge" in an unusually short amount of time1. Faulty charger.2. Faulty batteries.1. Replace.2. Replace.
Charger indicator not illuminating when charger is plugged into outlet1. Outlet has no power.2. Faulty charger.1. Check charger plugged in and electrical supply ON.2. Replace.
Charger indicator flashes red and never changes to green1. Damaged wire from charger to battery.2. Faulty batteries.1. Replace charger.2. Replace.

Specifications

Frame Folding frame
Frame MaterialLightweight 6061 Alloy
Forks Front suspension
Derailleur Shimano Tourney
Shifter Shimano 6 Speed
Size Medium
Recommended Height Range155-180cm
Type Pedal assist (Pedelec)
Rims Alloy
Tyres 20"
Spokes Stainless Steel
Brakes Disc
SeatComfort saddle
Sensor/drivePedal assist cadence sensor
DisplayHandlebar mounted LCD display
Motor250W 36V rear hub motor
BatteryLithium Ion 36V 8Ah battery
Range40km (in Pedal Assist mode in typical conditions)
Speed 25km/h with assisted power
Charge Time4-6 hours
Power PlugAustralian Standard

Valk Volt - Frequently Asked Questions - 1

Some experts believe that the incorrect or prolonged use of almost any product may cause serious injury or death. To help reduce your risk of serious injury or death, refer to the information below. For more information, see www.datastreamserver.com/safety

Consult all documentation, packaging and product labelling before use. Note that some products feature documentation available online. It is recommended to print and retain the documentation.
Before each use, check the product for loose/broken/damaged/missing parts, wear or leaks (if applicable). Never use a product with loose/broken/damaged/missing parts, wear or leaks.
■ Products must be inspected and serviced (if applicable) by a qualified technician every 6 months. This is based on average residential use by persons of average size and strength, and on a property of average metropolitan size. Use beyond these recommendations may require more frequent inspections/servicing.
■ Ensure that all users of the product have completed a suitable industry recognised training course before being allowed access to the product.

The product has been supplied by a general merchandise retailer that may not be familiar with your specific application or description of application. Be sure to attain third-party approval from a qualified specialist for your application before use, regardless of any assurances from the retailer or its representatives.
This product is not intended for use where fail-safe operation is required. As with any product (for example, automobile, computer, toaster), there is the possibility of technical issues that may require the repair or replacement of parts, or the product itself. If the possibility of such failure and the associated time it may take to rectify could in any way inconvenience the user, business or employee, or financially affect the user, business or employee, then the product is not suitable for your requirements. This product is not intended for use where incorrect operation or a failure of any kind, including but not limited to, a condition requiring product return, replacement, parts replacement or service by a technician may cause financial loss, loss of employee time or an inconvenience requiring compensation.
If this product has been purchased in error when considering the information presented here, contact the retailer directly for details of their returns policy, if required.

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Product information

Brand : Valk

Model : Volt

Category : Bicycle