VTC ROCKRIDER E-ACTV 100

REF: 8893260, 8893262

Rockrider E-ACTV 100 Electric Hybrid Bike

2025

On this page you will find the assembly, maintenance and repair instructions as well as the compliance certificate and spare parts for your Rockrider E-ACTV100 electric bike.

Getting started

Finishing your bike's assembly

If you purchase your bike in a Decathlon store or have it delivered to a Decathlon store, your bike will be provided fully assembled.

If you order your bike on the Decathlon website and have it delivered to your home, you'll need to round off the final assembly with a few very simple steps, as shown in the video above.

All the assembly steps are detailed in you bike's instructions. 

Getting to grips with the screen

1 - "ON/OFF" BUTTON
- Long press: turn the screen on or off

2 - "Assistance mode" button
- "ECO" mode is the default assistance mode when you turn the screen on.
- Changing the mode changes the amount of power from the motor

3 - "plus (+) button"
- Short press: switch to the next assistance mode up
- Long press (and hold): pedestrian mode

4 - "minus (-) button"
- Short press: switch to the next assistance mode down
- When "ECO" mode is selected, a short press turns off the assistance
- Long press: turns on bluetooth to pair the bike with the Decathlon Ride app. When bluetooth is activated, the ON/OFF button (1) blinks

5 - "Lights" button
Turns the bike's lights on or off

6 - "Battery level"
-
Five battery levels
- When the battery level is too low the last battery level lights up red

Getting to grips with the screen
Connecting your phone to your bike

You can connect your smartphone to your electric bike via Bluetooth. This gives you the full e-bike experience, including:

- Assistance mode usage stats
- Better battery range management
- Your route map and all your ride metrics (downloadable straight to Strava)
- Battery health monitoring
- Updates for your electronics
And much more!

To connect your phone to your e-bike, download the DECATHLON RIDE app.
The process is explained in the app.

Thanks to the SP Connect bracket built into the E-ACTV100's stem cover, your smartphone is held securely and smoothly on the bike.

Decathlon Ride App
Bedding in the brakes

When your bike is fresh out of the box or the Decathlon store, the brake pads and discs are brand new.It is essential to bed them in. A sharp prolonged braking action (for example, during a descent) , with brakes that have never before been used can cause the pads to overheat and "glaze over", which massively reduces their efficiency.

To avoid this phenomenon, we recommend bedding in your brakes.This takes about 10 gentle braking actions per brake. For each braking action, apply a single brake to slow the bike down from about 25 km/h to 5 km/h , without fully blocking the wheel. Repeat with the other brake.

Battery

HOW LONG DOES IT TAKE THE BATTERY TO CHARGE?

The battery charges fully in 4 hrs 30 mins with the 2A charger included.

Compatible with the Rockrider 4A charger for faster charging (Ref. : 8753941).

CAN YOU RIDE WHEN YOUR BATTERY IS FLAT?

It's an electric-assist bike. That means it's entirely possible to ride without this assistance.

However, you may well notice the additional weight of the assistance system.

CAN YOU LEAVE THE CHARGER CONNECTED TO THE BATTERY EVEN IF IT'S FULLY CHARGED?

Yes, the charger and the battery are designed to be plugged in 24 hours a day.

When the battery is fully charged, the charger stops charging. You can tell when it is charged because the LED will turn off.

SHOULD YOU WAIT UNTIL YOUR BATTERY IS COMPLETELY FLAT BEFORE CHARGING IT?

No. Lithium-ion batteries have no memory effect. So they can be charged at any time.

We recommend charging your battery regularly to keep it working well.

DOES THE BATTERY CHARGE WHILE CYCLING?

No, it doesn't have a dynamo.

WHAT SHOULD YOU DO WITH THE BATTERY WHEN IT WEARS OUT?

When your battery wears out, take it to your local Decathlon store, which will send it to a specialist facility to be recycled.

WHAT IS THE LIFETIME OF YOUR BATTERY?

- The Decathlon Ride app enables you to monitor the health of your battery
- The warranty on your battery is for 2 years or 500 cycles (1 cycle = 1 full charge + 1 full discharge, or two 50% charges + two 50% discharges).

HOW SHOULD YOU STORE YOUR BATTERY?

You must store and charge your battery in a cool (between 10°C and 25°C), dry place, out of direct sunlight.

To avoid deep discharge, which may cause it to malfunction, do not put the battery away when less than 10% charged.

Remember to recharge the battery at least every 6 months, even when not in use, to prevent deep discharge which can diminish the battery’s capacity.

Where can you buy a replacement battery?

You can buy a new battery with a different capacity from your local Decathlon workshop or from our website.

Contact your nearest workshop to check on availability and order times.

Problems

YOUR BATTERY WON'T CHARGE

1. CHECK THE BATTERY > CHARGER > MAINS SOCKET CONNECTION
Make sure the charger you are using is an original one provided by Decathlon.
Connect the charger to the battery and to a mains socket.
Charger light is red: the battery is charging.
Charger light is green: the battery has finished charging.
Flashing red charger light= the battery or charger has a problem.

2. CHECK THAT THERE IS NO DIRT PREVENTING CHARGING
The charger's and the battery's connectors should be clean. There should be no dirt preventing contact between the battery and its charger.

3. THE LED INDICATORS ON THE BATTERY MAY BE FAULTY
Visit your Decathlon workshop to have them repaired.

ONE OR MORE LEDS ON YOUR BATTERY IS/ARE FLASHING

THE FIRST LED IS FLASHING.
Your battery is almost flat and needs to be charged. Plug your battery into the charger.

THE 3RD LED IS FLASHING
Your battery has tripped because the temperature is too high.


 THE 4TH LED IS FLASHING
Your battery has tripped due to a short-circuit.

THE LAST LED IS FLASHING
Your battery has suffered an abnormal event which has caused it to malfunction. This malfunction may be temporary or permanent. Please visit a Decathlon workshop to have your battery and bike diagnosed.

LOW OR REDUCED RANGE

1. Make sure you are following the recommendations for using and storing your bike.
Your electric bike's range depends on a number of factors:
> THE LOAD ON THE BIKE: The range will be reduced if the bike is carrying too much weight.
> THE TYPE OF ROUTE: The range is reduced on climbs.
> THE TYRE PRESSURE: The battery will last longer with tyres that are correctly inflated.
> THE OUTDOOR TEMPERATURE: The range is reduced in colder weather (up to -50%).
> THE BOOST MODE USED: It is advisable to reduce the power assistance mode when the battery charge is low.
> FOLLOWING THE INSTRUCTIONS FOR CHARGING AND STORING YOUR BATTERY.

2. An old battery can have reduced performance.
The distance you can travel will therefore be reduced. Visit your Decathlon workshop to give your battery a check-up.

- The Decathlon Ride app enables you to monitor the health of your battery.

MAINTENANCE

Servicing your bike will keep all of its parts working for as long as possible and ensure you have the most fun when riding. Neglected maintenance can cause a number of problems that can lead to accidents: jammed cables, rust, leaks, premature wear, and more.

Regular maintenance keeps all mechanical parts running smoothly and extends the life of the bike's components.

When you start riding your bike, some components will move slightly.

How to clean your bike

To clean your bike properly, you'll need some bike cleaner, a sponge, and a brush.

Rinse off the bike with a hose and apply the bike cleaner. Next, use the sponge and brush to work the cleaner in. It's essential to give the bike cleaner some time to act before rinsing the bike off.
When hosing the bike off, make sure you do so from a few steps away so as not to damage the mechanical components.
Lastly, dry your bike using a soft, clean cloth.

To wash your electric bike, it is important to leave the battery on the bike. This will protect the leads from water!
Do not use a pressure washer as water could get into the ball bearings and permanently damage the electrical components.

How to correctly store an EAB

It is essential to properly store your EAB to improve its lifespan.

After your ride, we recommend:
> Clean off any mud and sand to prevent your bike from rusting.
> Dry and lubricate your drive train (being sure not to get any on the brakes) to protect it from rust and corrosion.
> Store your EAB in a cool dry place.

For winter storage, we have a few other tips to add:
> Put the derailleur on the small cog to release the tension on the cables.
> Ideally, charge the battery to 60%.
> You can coat your bike in a thin layer of Vaseline, focusing on the spokes and hub, the rims, the handlebar, and the stem. Use a clean cloth, slightly soaked in oil; this will protect the components from dust.
> Hang your bike by the frame to reduce pressure on the tyres and prevent potential cracking.

IMPORTANT: Cool does not mean cold! Avoid overly hot or cold temperatures at all costs. Do not store your bike in the sun, and watch out for winter freeze.
The garage can be a good solution, as long as it stays dry and does not freeze in winter. Otherwise, store the bike inside your house.

STORING YOUR ROCKRIDER E-ST 900 CORRECTLY
IMPROVING BATTERY LIFESPAN

To improve the lifespan of your battery as much as possible, we recommend:

- Reducing your use of it (an EAB is not a scooter!)
- Recharge the battery using the original charger, and make sure the charger is in good condition
- Store your EAB with a charge level of around 60% (avoid overcharging the battery beyond 100% and refrain from storing it completely drained)
- Park your bike in a shaded area or in cool rooms.

When transporting your bike, also consider taking the battery off and storing it inside your vehicle.

IMPROVING BATTERY LIFESPAN
CHANGING THE BRAKE PADS

On disc brakes, you need to change the pads regularly. Depending on how heavily you use your brakes, the wear on the pads will be affected.

If you feel a loss of "bite", a loss of performance, or a squeak in your brakes, your pads may be worn out. To be sure, check the thickness of the pad. If there is less than one or two millimetres left, replace it.

Rockrider e-ST900 Electric Mountain Bike
CHECKING CHAIN WEAR

You can check how worn your chain is by using a wear indicator. Simply place the indicator's notch between two links and let the other end drop onto the chain. If it fits neatly between two links, the chain is worn and it's important to change it soon, before it damages the cassette and chainring.

We recommend changing your chain when it's 50% worn. Above 75%, you should change the chain, cassette AND chainring, which is why it's best to regularly change your chain: this stops you having to replace your entire drive train.

Try to use all the different cogs on the cassette or a gentler assistance mode when riding. It is very common for users to need to replace their entire cassette because the small cog is worn out prematurely due to an assistance mode that is too often in turbo mode, or because the small cog is too worn compared to the others).
REMEMBER: electrical-assistance bikes need a reinforced chain.

Rockrider e-ST900 Electric Mountain Bike
ROCKRIDER E-EXPL 700: user guide, repairs

Spare parts

Need to replace a part on your bike? You'll find all our spare parts for the E-ACTV 100 e-bike right here.

Rockrider E-ACTV 900

DECATHLON workshops

Each Decathlon store has a workshop for servicing and/or repairing your bike. Here are all the services provided by our trained technicians to help you out:

Rockrider e-ST900 Electric Mountain Bike

NEED HELP?

Commitments

DECATHLON offers a lifetime warranty on the frame, fork, handlebar and stem subject to the bike being used under normal conditions. All other components (battery, electrical components, and mechanical components excluding wearing parts) and labour come with a 2-year warranty from the purchase date.