Ampler Stellar User manual

V2.0 04.06.20
User Manual
Stellar 2020

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V2.0 04.06.20
Inhaltsverzeichnis
3 What’s in the box?
3 Frame number
4 Assembly
7 Power on the bike
9 Ampler Bikes app
10 Maintenance
13 Electric system support
15 Charger safety manual
16 Cargo adapter for Thule trailer
17 Specications

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What’s in the box?
The bike will arrive at your doorstep in a big cardboard box.
Inside this you will nd:
The bicycle
Ownership certicate
Pedals
4 mm hex key
6 mm hex key
Pedals
Charger
Reectors (two yellow spoke reectors,
front- and rear reector)
*Optional: ABUS Bordo Lock and the lock keys;
additional charger; cargo adapter
The frame number is on the right side of the bike on the chainstay,
next to the rear dropout.
Frame number

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Adjust the handlebar 1. Take the 4 mm hex key and loosen the side bolts of the stem. Turn
the handlebar to the riding position. Make sure the handlebar is
aligned with the front wheel.
2. Take the 4 mm hex key and lightly tighten the top cap bolt on the
handlebar stem. This will make sure the headset will not have any
play in it.
4 mm
90°
3. Take the 4 mm hex key and carefully tighten the same stem bolts
you loosened 2 steps back.
Turn your handlebar left and right and make sure it spins freely. If it
feels a bit too tight, loosen the stem bolts and just slightly loosen
the top cap.
• 4 mm hex key
• 6 mm hex key
• Pedals
You will need
Assembly

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Montage
Insert the pedals 1. Unwrap the pedals. The pedals are marked with R (right) or L (left).
The R pedal goes on the chainwheel side and the L pedal goes on
the non-chainwheel side.
2. Tighten the pedals with the 6 mm hex key Pedals need to be tight
so make sure you put some
Pedals need to be tight so make sure you put some force into it.
Expect resistance only at the end of the thread, if the pedal is hard to
thread in from the beginning then the threads must be inspected.
LR
links rechts
6 mm
1. Clamp the white front reector below the front light.
2. Attach the red rear reector to the bracket. Wrap the bracket
around the seat post and secure it with the screw.
3. Attach one orange reector on the front wheel, one on the rear
wheel. Pick a spoke, place the reector on the spoke and push the
clasp at the reector mount. Fasten it with a screwdriver.
Mount the reectors

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Montage
The bike has made a long journey before reaching you, double-check
the following things:
1. Check the wheels. Spin the wheels and see if they run freely.
2. Test the breaks. Spin the front wheel and the rear wheel separately.
Apply the brake levers separately and make sure the bakes are
working correctly.
3. Check the drivetrain. Pedal by hand and check if the chain or the
belt drive runs freely. Shift the gears on the 10-speed bike.
4. Check your bike visually. Does everything seem alright?
Remember to check your bike occasionally and view our Ampler Bikes
Maintenance information.
Final check before your rst ride
Take the 4 mm hex key and adjust the perfect seat height
1. Place the bike in a way that allows you to support yourself against a
wall when sitting on it.
2. Put one pedal in its lowest position.
3. Hop on and try to reach the pedal with your heel.
4. You have the perfect seat height when you are able to place your
heel on the pedal with an almost fully stretched leg.
5. Tighten your seat bolts!
And you are good to go!
Adjust the seat height
4 mm

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Power on the bike
Just press the power button on the power panel, located on the left
side of the bike. The bike is already fully charged when you receive it.
Turning the bike on
Charging the bike
State of charge
Charging the bike is like charging a laptop. Just connect the bike with
a standard wall power outlet (110–240 V AC) and hook the magnetic
charger plug to the charging socket located on the power panel and
let it to charge.
Once the led on the charger turns from red to green
it has been fully charged. It takes about 2.5 hours from drain to full.
Ampler charger will automatically stop charging when the battery is
full. There is no risk of overcharging the battery when you forget to
unplug it.
For your protection, please read carefully “Charger safety manual”
chapter below before operating the Ampler battery charger.
The power button also acts as a battery charge monitor. The led
colours according to the state of charge.
To turn the lights ON and OFF, hold the power button for 1–2 seconds.
You can turn the lights on/o also from your Ampler mobile app.
The bike will remember the last setting, so the lights will be ON when
you leave them on next time you power the bike.
Turning the lights on
74–50% 49–10% 9–0% 100–75%
bike is OFF 1x short press bike is ON
bike is ON press + hold front + rear lights
switch ON/OFF
release

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The bike has two standardized assist modes:
• Normal (1) – 25 km/h, 250 W, 100%
(max assist speed, motor power, assist level)
• Boost (2) – 25 km/h, 250 W, 150%
(max assist speed, motor power, assist level)
To switch between the assist modes, hold the power button down for
3–4 seconds, until it turns orange.
After releasing the button, it will blink ONCE if it changes to Normal
Mode (assist mode 1) or TWICE if
it changes to Boost Mode (assist mode 2).
You can also change the support modes on the dashboard of your
Ampler app.
You can fully customise the assist modes with the Ampler Bikes app
under the ‘Vehicle settings’.
Changing the assist modes
Power on the bike
bike is ON press + hold release LED blinks 1x assist mode 1
press + hold release LED blinks 2x assist mode 2bike is ON

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To fully customise your riding experience please download the Ampler
Bikes available for Android and iOS.
You can download the app for IOS from the App store, for Android
(Android 4.4 onwards) in play store.
Download the app, stay close to your bike, switch on the Bluetooth,
pair your handy with your bike and log in. The Ampler smartphone
application lets you fully customise your riding experience with the
Ampler e-bike. Here’s some of the examples you can do:
1. Download the Ampler app
2. Register with your Facebook account or e-mail
3. Pair your bike with your phone over a Bluetooth connection
Ampler Bikes App
To connect the bike with the app
Navigate with built-in maps
Stay informed about your
bike’s electronics
Adjust the motor power and
max. assist speed
You have the option to change the motor
parameters from the smartphone:
• motor power-increase or decrease your
acceleration
• max assist speed – the speed at which
the electric assist stops helping you
• assist level – how much the motor
assists you in proportion to your input
Or switch the lights on/o or to “lights
only” mode.
• Check your battery range
• Receive updates about your bike’s
electronics
• Get the latest Firmware
• Contact Ampler for troubleshooting and
servicing
• Navigate with built-in maps*
• Track your speed and power while riding
• Record your trips and share with friends
*Continued use of GPS running in the
background can dramatically decrease your
phone’s battery life.

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Maintenance
Bicycles are technical yet sensitive creatures that need a little bit of
love, attention and care every now and then. Maintaining your bicycle
regularly will keep it riding (and riding well) for a lot longer and will
give you more range compared to a bike which has empty tires and
running brakes. It’s a lot like maintaining a car – you check some
things on a daily and you take it to professional service for a check-up
and maintenance after a certain number of kilometres.
Take care of your bike and have the bike maintained regularly in every
3000 km or at least once a year. The actual needed maintenance
interval can vary depending on your riding habits, road quality and
weather conditions.
Maintaining your Ampler bike is just like maintaining a regular bicycle
and all professional bike shops can carry out the maintenance of our
bikes.
• Cleaning your bike will help to quality and keep the dirt and dust
from getting into the engine and bottom bracket.
• Use soap, water and a variety of sponges and brushes to thoroughly
clean the bike
• The power panel of the bike is washable and waterproof. Now and
then clean (non-metallic tool) and lubricate the charging port with a
multi-purpose oil (for example multi-spray).
• Avoid using pressure washers, as the pressure driven water will get
dirt, sand and dust particles inside tiny compartments, causing rust
and problems later down the line.
• Check the tyre pressure regularly. You can always check the recom-
mended tires pressure noted on the side walls of the tires.
• Keeping the tires inated to the recommended pressure will keep
the battery range high, protect the rim and tire from damages.
• Look out for tire wear. Depending on how and where you ride your
bike, the tyres can wear at a dierent pace. If you see that the tread
looks worn out, change your tyres.
• If it gets icy, get some winter tyres. Make sure they properly t your
bike before riding — you will nd the correct tyre size from the
specications.
• Check the chain tension – if it has slackened over time (it looks
saggy), get it adjusted. If you feel you are not right for the job, you
can easily get it done in your local bicycle shop.
• Replace he chain before the wear is reached to 0,75%
• Making sure your chain is lubed will prevent unexpected and prema-
ture wear to the drivetrain.
• If the chain feels a little dry, clean it with a rag and then add some
chain lubricant. Spin the pedals around a couple of times to spread
the lubricant evenly.
• A carbon belt drive does not need any oil, however needs to be
cleaned after riding in dirty conditions with water. You can apply a
thin coating of dry silicone spray to the tooth side of the belt if
necessary.
Clean your bike regularly
Check the tyres
Check the chain

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• Avoid using the lubricant on brake pads, rotors or rims. Spray is not
recommended, use liquid oil.
• Check the brakes regularly – they should be cleaned and adjusted.
• Over time the disc brakes get less ecient at breaking. To stay safe,
get your brakes inspected, serviced and changed if necessary by a
professional workshop.
• Squeezing your brakes down should feel solid and consistent – the
lever should not touch the handlebar. If you feel that your brakes
aren’t eective, get a professional to check them out.
• Take a good look at the brake pads on your bike every few weeks to
see how they are holding up. There shouldn’t be any dirt or oil on
the pads. Often times, the brakes will make a howling noise if
there’s oil on them.
• Check the brake hoses for wear and tear – if you can see that the
house is crumbling or broken in any place, get it checked immedia-
tely by a professional.
• After rst couple of weeks check the bolts and nuts. If there is too
much play in the bolts, tighten them up a little bit and see if you can
identify the cause of the looseness. Don’t tighten the bolts too far.
• Re-tighten the bolts on the handlebar if needed.
• Check the crank bolts (8 mm hex key, not included), tighten them if
needed.
Re-tighten the pedals, using the key that came with the bike.
• Re-tighten the bottom bracket eccentric bolts.
• If you’re not riding and charging your bike consistently, charge it
every ve–six week or so to maintain the state of the battery. Due
to Bluetooth the bike has a little power consumption even when
switched o.
• Do not keep the bike in blazing sun or freezing cold over the exten-
ded period if it is not being used.
• Store the bike in a dry place over the winter – it doesn’t need to be
heated, however below 0 is not recommended.
• Charging the battery should take place indoors (above 0 degrees) or/
and in dry environment. Do not keep the charger outside.
Beware that when you bike in the cold, the range and battery capa-
city will be lower than average. This is completely normal, and it
won’t aect the battery’s overall state or lifespan.
• When you nish cycling in the cold, make sure that the bike has
time to warm up a little before you charge it.
Maintaining your Ampler bike is just like maintaining
a regular bicycle and all professional bike shops can carry out the
maintenance of our bikes.
The rst professional check-up should take place after the rst 500
kilometres – this will ensure that everything is working as it should.
After that, have the bike service regularly every 3000 km.
Check the brakes
Motor and battery maintenance
Professional maintenance
schedule
Keep the bolts tight
Maintenance

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If you ride often and don’t count the riding distance, make sure to
take it to a professional bike shop for maintenance at least twice
every season, ideally even three times
• Before the start of the season
• Mid-way through
• At the end of the season.
This way, all the important aspects like brake oil levels, and the condi-
tion of brake pads and tyres get checked, and the internal parts like
the crank set and wheel hubs get cleaned thoroughly.
That’s it – while it’s a long list of things to look out for, it’s good to
remember that maintaining your bike often is important for both
safety and ride experience reasons.
Have fun riding!
Maintenance

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Ampler hardware (the battery, controller and sensors) are inserted into
the down tube. This keeps the bike clean, the weight down, and the
components safe from outside elements such as the rain and cold
temperature.
The hardware doesn’t need any special maintenance. However, we
recommend to keep your bike Firmware up to date and calibrate your
bike sensors from time to time. This will help to keep your bike in a
good shape for longer time.
Software restart clears up your bikes memory and starts it fresh. It
helps to resolve any problems connected to the hardware, and any
communication problems between the bike and the mobile app.
To reset your bike
1. Hold down the power button for 20 seconds. This will reset and
turn o your bike.
2. Turn on the bike again from the power button.
Ampler bikes are pedelecs and they have sensors regulating the motor,
measuring the speed of pedalling and your own input power. Therefo-
re, the bike is easy to use and the motor power is controlled according
to your own pedaling force. This creates a safe and smooth riding
experience.
We recommend to calibrate your bike’s torque sensor every 3–6
months, or in case the bike feels over- or underpowered. Torque
sensor calibration is done via the Ampler app:
1. Adjust the left crank forward, parallel to the ground.
2. Connect the Ampler app with your bike via Bluetooth
3. Open ‘Vehicle’ setting from the menu
4. Click on ‘torque sensor calibration’
5. The LED blinks in orange
6. The LED will turn green once the calibration is successful
Re-adjusting the sensor signal helps to improve your bike’s responsi-
veness and power to its original gures.
Every Ampler has a motor controller – the so-called brain of your bike
that connects all the elctronics and makes sure everything runs
smoothly. The motor controller is managed by Firmware (the software
that controls the hardware). To guarantee the best riding experience,
we recommend keeping your bike’s Firmware up to date.
Software restart
Electric system support
Torque sensor calibration

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Firmware update is done via the Ampler mobile app. If your bike is
connected to the app, you will get a notication in your app about the
new available Firmware. Please go to the Vehicle settings to update
your Firmware.
Before starting the update, make sure:
• You have the latest Ampler app version
• You have internet connection on your phone
• Your phone’s battery is not running low
• The battery level of the bike is more than 25%
• You have registered and paired the app with your bike
The update is done over Bluetooth in several steps. All the steps are
almost identical, and they need to be done in a row. This means that
after completing the rst update, if there will be a second update still
available – you will also need to complete this. The updates should
take about a minute to complete.
If you experience any problems with updating the Firmware, please
follow troubleshooting instructions below.
Flow A
7. Turn Bluetooth OFF
8. Turn Bluetooth ON
9. Wait 10 seconds for connecting
If there is no connection, start ow B. If the connection is established,
check if there is another Firmware update available and complete that
one as well.
Flow B
10. Close the Ampler app on the background
11. Go to Bluetooth settings
12. Find the Ampler Bike Bluetooth ID under your Bluetooth devices
and click the “Info” button. Press “Forgot This Device”
13. Turn Bluetooth OFF and then back ON under settings
14. Open the Ampler app
15. Pair your bike with your smartphone
16. Check if the update is available and complete the update
If a new rmware version becomes available in the future, you will be
notied within the app. Meanwhile you can check the rmware status
in the Vehicle view – if the rmware is up to date, you’ll see the infor-
mation in the lower part of the screen in the vehicle view.
Troubleshooting the Firmware
update
Electric system support
Firmware update

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For your protection, please read this manual carefully before operating
the Ampler battery charger.
The charger is designed for indoor use only. Do not expose it to rain,
snow or expose the device to elevated temperatures.
Only use the genuine Ampler charger designated for your Ampler
e-bike. Do not use this charger for other batteries. Also, do not use
other battery chargers for your Ampler e-bike.
Store the charger in a cool and dry place.
Always check that the magnetic charging plug and connector are
clean. Any electrically conducting particles at the connection can
damage the charger or the electrical system of the e-bike.
During charging the charger can become moderately hot. Always place
the charger in a well-ventilated place and keep it away from combus-
tible materials.
Children should be supervised by an adult when using the product.
This charger must not be disposed with domestic waste and should
be disposed at an authorized place for recycling electrical appliances.
Charger safety manual
Important

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12
Cargo adapter for Thule trailer
1. Remove the nut from the left side of the rear dropout, located next
to the motor. Do not remove the motor torque washer from the
dropout – keep it attached to the axle.
2. Attach the Ampler motor axle adapter to the frame.Use a 19 mm
wrench and make sure the axle adapter is securely fastened.
3. Finally, insert the two security washers, Thule trailer mount and
fasten them by using a 15 mm wrench to tighten the outside bolt.

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Specications
*Specications may vary depending on ordered conguration.
Sizes Small 48 cm, Medium 55 cm
Parts
Frame Aluminum Alloy 6061
Fork Aluminium 1 1/8”, 12 mm thru axle
Crankset Alloy 42T, 170 mm
Bottom Bracket Sealed BB with a torque sensor
Gear shift Shimano Deore RD-T6000 10-speed
Chain Shimano/ Sram compatible 10 speed chain
Brakes Shimano Deore T6000 hydraulic disc brakes
Brake pads Shimano G02S
Rims Asymmetrical 18 mm rims w sealed bearing hubs, 36H
Tyres Continental Top Contact II, 42–622 mm
Wheels 28”
Weight* 17.2 kg
Electronics
Assist speed 25 km/h
Range 45–100 km depending on terrain and assist mode
Battery 48 V 336 Wh LG Li-ion battery
Motor 48 V 250 W rear hub motor
Control mode Precise pedal torque sensing motor control system
Connectivity Smartphone connectivity with option to change
motor settings
Charger 3A Li-ion charger with Rosenberger magnetic plug
Charging time 2.5 hours for a full charge
Lights Front: Busch+Müller IQ2 Eyc
Rear: LightSKIN integrated seat post LED light (StVZO approved)