Astro - Electric bike KETTLER - Free user manual and instructions

Features	Details
Bike type	Electric bike
Frame	Lightweight aluminum
Motorization	Central motor
Motor power	250 W
Battery	Lithium-ion battery, 500 Wh capacity
Range	Up to 100 km depending on assistance
Maximum speed	25 km/h
Brakes	Hydraulic disc brakes
Weight	Approximately 23 kg
Recommended use	Urban trips and leisure
Maintenance	Regular check of brakes and tire pressure
Safety	Front and rear lighting, reflectors
Warranty	2 years on frame, 1 year on electrical components
Included accessories	Charger, kickstand, mudguards

Frequently Asked Questions - Astro KETTLER

How do I charge the KETTLER Astro battery?

To charge the battery, connect the supplied charger to the battery socket located on the bike frame. Make sure the bike is turned off during charging. The LED lights up to indicate that charging is in progress.

What is the maximum range of the KETTLER Astro?

The maximum range of the KETTLER Astro depends on several factors, including the chosen assistance mode, rider weight, and terrain. Generally, the range varies between 40 and 100 km.

How do I adjust the saddle height?

To adjust the saddle height, unlock the seat post by releasing the locking lever, adjust the saddle height to the desired position, then tighten the lever to secure the position.

What should I do if the bike does not turn on?

If the bike does not turn on, first check if the battery is properly charged and inserted. Also ensure that the kill switch is activated and the bike is in the "On" mode.

How do I perform regular maintenance on the KETTLER Astro?

For regular maintenance, check tire pressure, clean and lubricate the chain if necessary, and check the brakes for proper function. Consult the user manual for specific recommendations.

How do I adjust the electric assistance?

The electric assistance can be adjusted using the control display located on the handlebar. Press the assistance button to choose between the different available assistance levels.

What is the maximum speed of the KETTLER Astro?

The maximum speed of the KETTLER Astro in assistance mode is generally limited to 25 km/h, in accordance with electric bike regulations.

How do I fix a flat tire?

To fix a flat tire, remove the affected wheel, dismount the tire using appropriate tools, replace or repair the inner tube, then remount everything ensuring the tire is properly seated.

Where can I find spare parts for the KETTLER Astro?

Spare parts can be ordered from authorized KETTLER dealers or online on the official KETTLER website. Make sure to use compatible parts to ensure proper bike function.

USER MANUAL Astro KETTLER

Operating instructions for the training computer with digital display (ST2701-8) / (ST2703-8) / (ST2705-8)

Features

Symbols:

1. P no training: ready to accept set values

2. SCAN automatic change of display

3. ODOMETER display of total kilometres covered

4. RPM display of pedal rotations / step frequency

5. SPEED display of speed

6. TIME display of training time

7. DISTANCE display of training distance

8. KILOJOULE display of energy consumption

9. PULSE display of current pulse

10. Heart will flash in accordance with pulse

Values:

1. Large display room temperature [0 - 40^] odometer [0 - 9999km] fitness value [F1.0-F6.0]

2. Pedal rotations 20 - 199 [Rotations/min] Step frequency

3. Time 0:00 - 99:59 [min:sec]

4. Distance 0.0-99.9 [km] Speed 0.0-99.9 [km/h]

5. Energy consumption 0-9999 [KJ]

6. Pulse 50-199 [Beats/min]

Buttons:

Minus button reduce values (Count down display range)
Set button function button [Set value, change, reset of display]
Plus button increase values (Display range forward)
Recovery button function button [Fitness value determination]

Connections (at front)

Jack (4 poles) for the ear clip

Connections (at rear)

Jack (4 poles) for the hand pulse sensors
Jack (2 poles) for the speed pickup
Battery compartment 2 batteries: Mignon1,5 Volt, LR6, AA,

1.0 Displays before starting the training

1. Room temperature fig. 1 [prior to and after training]
2. Complete display fig. 2 [after pedal rotation or pressing a button, 1 sec]
3. Total kilometres covered fig. 3 [display term:10 seconds or button]
4. fig. 4 readiness for training

fig. 1 Room temperature
fig. 2 Complete display

fig. 3 Total kilometres covered fig. 4 readiness for training

2.0 Pulse measuring

This display offers three kinds of pulse measurement:

1. via ear clip
2. via hand pulse sensors
3. via Cardio Pulse Set, Art.-No. 07937-000 (available as accessory at local dealers)

Setting pulse display

You have set the mode "ready for exercise" (fig. 4).

Pulse measurement via ear clip

Insert ear clip cable in jack.

Rub ear lobe to stimulate blood circulation.

Fasten ear clip to ear lobe.

Pulse measurement via hand pulse sensors

Hands grasp hand pulse sensors.

Pulse display

The heart symbol (15) will flash according to your pulse.

The pulse rate is displayed as a value (16)

Information on pulse measuring

It is only possible to measure the pulse rate with one system at the time (either ear clip or hand pulse sensors or Cardio Pulse Set).

Pulse measurement commences when the heart in the display is flashing in time with your pulse.

3.0 Training without preset training data

Step on the pedals. All values will count upwards.

4.0 Training with preset training data

The right training pulse [Aerobic zone]

The training pulse depends on your age. For every age there is an ideal aerobic training range (rule of thumb: 180 minus age) which is marked by an upper and a lower pulse limit (+ / - 10 beats). Your training pulse should always be within the aerobic zone. The maximum pulse frequency (200 minus age) should not be exceeded. Healthy persons may use the following diagram.

Adjusting the Time (12), Distance (13), Kilojoule (14,) Pulse limit (16).

Symbol P (1) (Fig. 4) appears in the top left display prior to tra

ning or during training interruption. Press the Set button and you get into the set mode (Fig. 5) where you can set the desired value with the + or - button.

The adjustable values are represented with flashing segments

If you press the + / - button longer there will be a fast forward or return motion of the preset values.

If you press the + / - buttons together, the value will return to zero.

With the Set button you will get to the next preset values.

After setting the pulse value you stay in the stand-by mode with the Set button but with a display of all presets (Fig. 10/11).

If you press the Set button longer, the display will skip to the complete display (reset function) (Fig. 2).

fig. 5

fig.6 fig.7

fig. 8 fig. 9

fig. 10 fig. 11

fig. 5: preset time starts with "OFF"
fig. 6: preset time: e.g. 18 minutes
fig. 7: preset distance: e.g. 10 kilometres
fig. 8: preset energy consumption: e.g. 380 Kilojoule
fig. 9: preset pulse limit: e.g. 130 pulse beats
Fig: 10: stand-by mode with display of all presets (DISTANCE)
fig: 11: stand-by mode with display of all preset (SPEED)

Tobe noted

Distance and Speed (13) change in a 5-second-cycle.

If you do not enter any preset values within 4 minutes, the display will skip to room temperature (Fig. 1).

Function

Step onto the pedals. All preset values (except pulse limit) will count down, then flash for a few seconds when reaching zero and afterwards count upwards from the preset value.

If your pulse beat exceeds the preset pulse limit, the pulse value will flash and a bleep will sound as a warning.

5.0 Display during training

If you step in the pedals for more than 20 rotations, an automatic display change SCAN (symbol 2 in the display) will take place in a 5-second cycle. With the Set button you can switch it off. With the +/- button you can then skip one display range forward or backward.

Tobe noted

Distance and Speed (13) change in a 5-second-cycle.

If a preset value (except the pulse limit) is reached, it will immediately be shown in the large display (10).

6.0 Display prior to training, at an interruption of training, at the end of training

If you stay below 20 rotations, the electronic system will recognise an interruption of training. The automatic display change will stop, the SCAN symbol disappears, P will be displayed and the current range remains standing still in the large display. If you do not continue training within 4 minutes, the display will change to room temperature (Fig. 1). In this case, the distance is added to the total kilometres covered. All other values will not be stored.

Tobe noted

Distance and Speed (13) change in a 5-second-cycle.

With the + / - button you can skip one display range forward or backward. With the Set button you get back into the input mode. In this case, all previous training data and preset values are deleted.

7.0 Display after continuation of training

Step on the pedals. The values will count on.

8.0 Recovery pulse measuring

The training computer is equipped with a recovery pulse function that enables you to measure your recovery pulse at the end of your training.

At the end of your training press the recovery pulse button. The computer will count down for 60 seconds and measure your pulse (Fig. 12). Afterwards, a fitness value with (F) is displayed (Fig. 13) the calculation of which is explained in 9.0 General. If pulse measuring is interrupted, (E) is displayed instead of a value. If you press the recovery button, the current training display will appear again.

fig. 12 fig. 13
fig. 14

fig.12:Recovery pulse measuring with count down (0:60 - 0:00)
fig.13: Fitness value display
Fig.14: No pulse recognition (E) during recovery pulse measuring

Tobe noted

If no pulse value is displayed, no recovery pulse function will be performed.

After pressing the recovery button, quickly grasp the hand pulse sensor again since otherwise pulse measuring will be interrupted.

9.0 General

Home trainer

Speed calculation

60 pedal rotations per minute result in a speed of 21.3km / h

Kilojoule calculation

From the view of sports physicians there is the following energy consumption during cycling: 1 hour cycling at 24km / h requires 1680kJ

1 kilometre results in 70kJ

This calculation is based upon a medium training intensity and is only changed by a variation of the pedalling frequency.

Cross trainer

Speed calculation

60 pedal rotations result in a speed of 9.5km / h

Kilojoule calculation

From the view of sports physicians there is the following energy consumption during cross training: 1 hour training at 9.5km / h requires 3344kJ

1 kilometre results in 352kJ (with medium training intensity)

Fitness value calculation

The computer calculates and assesses the difference between load pulse and recovery pulse and your resulting "fitness value" on the basis of the following formula:

$$ \text {N o t e} (\mathbf {F}) = 6 - \left(\frac {1 0 \times (\mathrm {P} 1 - \mathrm {P} 2)}{\mathrm {P} 1}\right) ^ {2} $$

P1 = load pulse P2 = recovery pulse

Value 1 = very good Value 6 = unsatisfactory

The comparison of load and recovery pulse is a simple and fast method to control your physical fitness. The fitness value is a value of orientation with regard to your ability to recover after physical load. Before you press the recovery pulse button (15) and have the computer calculate your fitness value you should train in your load range for a longer time, this means for at least 10 minutes. With regular cardiovascular training you will notice that your "fitness value" will improve.

Information on pulse measuring

Pulse measuring starts when the heart in the display flashes according to the beat of your pulse.

Pulse measurement via ear clip

Teh pulse sensor works with infrared light and measures the changes in the light transmission of the skin caused by your pulse frequency. Before fitting the ear clip the ear lobe should be rubbed

10 times to stimulate blood circulation.

Avoid interfering impulses

Fasten the ear clip carefully to your ear lobe, searching for the best point to get signals (heart symbol fashing without interruption).

Avoid exercise in full light, e.g. neon lamps, halogen lamps, spot lights or direct sunlight.

Furthermore avoid vibration and moving the ear clip or its cable. Always fix the cable to your clothes or better still to a headband, using the provided clip.

Pulse measurement via hand pulse sensors

The contraction of the heart produces an extra-low voltage which is detected by the hand sensors and evaluated by the electronic system.

Always grasp the contact surfaces with both hands.
- Avoid any jerky grasping.
- Hold your hands steady and avoid any contractions and friction on the contact surfaces.

With Cardio Pulse Set

Please follow the respective set of instructions.

Failures in the pulse display

Should there once be any problems with pulse detection, please check the above mentioned points once again.

Check the battery voltage.

Failures in the training computer

In case of strange behaviour of the training computer remove the batteries, check battery voltage and insert batteries again. Previously record the kilometres covered. The stored total value of kilometres covered will be lost during an exchange of batteries.

10.0 Training instructions

For Your Safety:

Before beginning your program of exercise, consult your doctor to ensure that you are fit enough to use the equipment. Base your program of exercise on the advice given by your doctor. Incorrect or excessive exercise may damage your health.

This training device has been particularly developed for leisure time sportsmen. It is excellently suited for cardiovascular training. The training method must be based on the principles of stamina training. This will predominantly cause changes and adaptations of the cardiovascular system. This includes the reduction of the resting pulse frequency and of the load pulse.

This gives the heart more time for filling the ventricles and for the blood circulation of the cardiac musculature (through the coronary vessels). Moreover, depth of breathing and the volume of air that can be breathed in (vital capacity) are increased. Further positive changes take place in the metabolic system. In order to achieve these positive changes, the training has to be planned according to certain guidelines.

Intensity of training (exercise bike)

When training with the exercise bike, the intensity of training on the one hand is regulated through the pedaling frequency and on the other hand through the resistance. The training person can adjust the resistance via the braking force regulation at the steering column. Always pay attention to the fact not to overstrain yourself

with regard to intensity of training and to avoid overstress. Wrong or excessive training may be prejudicial to health.

Training intensity (home trainer)

The intensity of training with the home trainer on the one hand is regulated through the pedalling frequency and on the other hand through the pedalling resistance. The training person can set the pedalling resistance with the braking force regulation at the steering column.

Training intensity (cross trainer)

The intensity of training with the cross trainer on the one hand is regulated through the step frequency and on the other hand through the step resistance. The training person can set the step resistance with the 10-step gear.

Always pay attention to the fact not to exaggerate the training intensity and to avoid overstrain. Wrong or excessive training may lead to injuries to your health.

For this reason, during training check with your pulse frequency whether your training intensity is appropriate. Rule of thumb for an appropriate pulse frequency:

180 minus age

This means that a 50 year old person, for example, should organise his/her training at a pulse frequency of 130.

Training recommendations on the basis of this calculation are considered to be favourable by numerous recognised sports physicians. According to them you should determine your pedalling frequency and the pedalling resistance in such a way that you achieve your optimal pulse frequency according to the above mentioned rule of thumb.

These recommendations, however, only apply to healthy persons and are not valid for cardiovascular patients!

Exercise and load scope

Beginners should increase the load and intensity of their training only step by step. The first training units should be relatively short and organised in intervals.

Sports physicians consider the following load factors to be positive for fitness:

Frequency Duration

daily 10 min

2-3 times weekly 20-30 min

1-2 times weekly 30-60 min

Beginners should not start with training units of 30 to 60 minutes.

Frequency Length of exercise blocks

1st week

three times a week 2 minutes training

1 minute break for gymnastics
2 minutes training
1 minute break for gymnastics
2 minutes training

2nd week

three times a week 3 minutes training

1 minute break for gymnastics
3 minutes training
1 minute break for gymnastics
2 minutes training

3rd week

three times a week 4 minutes training

1 minute break for gymnastics
3 minutes training
1 minute break for gymnastics
3 minutes training

4th week

three times a week 5 minutes training

1 minute break for gymnastics
4 minutes training
1 minute break for gymnastics
4 minutes training

A beginner training could be organised as follows during the first four weeks:

In order to have a personal training documentation, you can enter the training values achieved in the performance table.

Prior to and after every training unit gymnastic exercises lasting approx. 5 minutes serve for warming up and/or cooling down. There should be a day without training between two training units,

if you later on prefer to train three times a week for 20 - 30 minutes each. Otherwise nothing can be said against a daily training.

Sequence of motions (cross training)

Through the elliptical rotation of the step boards and the arrangement of the grip bars the sequence of motions during cross training is already predetermined. Nevertheless, pay attention to the following items:

Prior to training always pay attention to the correct installation and positioning of the device.
- When mounting the device one step board has to be in the bottom most and the other in the top most position. Grasp the grip bars with both hands and mount the lower step board first. When dismounting from the device, first relieve the upper board.
- Set the step boards at your optimal distance to the grip bars. Pay attention to having sufficient leg-room towards the grip bars.
Train with appropriate sports shoes and pay attention to having a safe foothold on the step boards.
Hold tight at the grip bracket between the movable grip bars, if you only want to train the lower part of your body. (Do not train no-handed.)
Try to achieve a uniform, round sequence of motions.
- Set the brake resistance at the control knob under the cockpit according to your individual requirements.
During training vary between forward and backward motions of the step boards in order to strain leg and gluteal muscles in a different manner.

A regular training can increase your stamina, your force and thus also your well-being. Training success is optimised by a healthy way of life which is determined by a well-balanced, high-quality nourishment.

Performance table

Date	Restpulse	Stress pulse	Recovery pulse	Slope	Time (min) (km)	Distance (Kcal)	Energy consumption	Fitness	Mark

5.0 Weergaveijdens de training

2-3 x per week 20-30 min

1-2 x per week 30-60 min

3 x per week 3 minutes trainen

Odometer [0 - 9999 km]

Fitness ocena [F1.0 - F6.0]

1. Stevilo obratov pedalov 20 - 199 [vrtljaji/min] Pedalna frekyvenca
2. Cos 0:00 - 99:59 [min:sec]
   13.Razdalja 0.0-99.9 [km]

Hitrost 0.0 - 99.9 [km/h]

1. Poraba energia 0-9999 [KJ]
   16.Pulz 50-199 [utripi/min]

Tipke:

Zmanjsanje vrednosti (obmocje prikazaj)

SetTipka Funkcijska tipka [normiranje,menjava, postavljanje prikaza nazaj (reset)]

Plus-tipka Povecanje vrednosti (obmocje prikazanaprej)

Recovery-tipka FunkcijskTipka [dolocitev fitness]