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RIVERSIDE Ref. 8577923 2978703

Low Frame Electric Hybrid Bike Riverside 100 E - Blue

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Colour: BLUE
  • BLUE
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Take to your favourite cycle paths with ease. Electric assistance takes you on a ride with a battery life of up to 70 km.



Up to 70 km (in eco mode) Removable battery Capacity 380 Wh


Compatible with rear pannier racks, mudguards, child seats and trailers.


Wheel motor with cadence sensor. Max torque 42 Nm.

Puncture resistance

Self-repairing inner tubes.


Download the Decathlon Ride app and unleash your bike's full potential!

Cycling comfort

60° trekking position; 60 mm suspension.



How to choose your hybrid e-bike size

We offer 3 sizes of e-bike (men's and women's):

• Size S: 1.50 m to 1.65 m tall.

• Size M: 1.66 m to 1.77 m tall.

• Size L: 1.78 m to 1.90 m tall.

If you are on the edge between 2 sizes: Get the smaller size if you want a more upright position.

Get the bigger size if you want a more stretched-out position.

Hybrid e-bike battery range and assistance modes

The assistance modes help you to reach speeds of up to 25 km/h, above which you'll no longer get any help from the motor.

0 - No assistance

1 - Gentle assistance - 70 km of battery range in normal conditions

2 - Moderate assistance - 60 km of battery range in normal conditions

3 - "Boost" assistance for tough climbs - 40 km of battery range in normal conditions

The battery range will vary depending on the weight of the bike (user + baggage), the gradient and the outside temperature

Electric hybrid bike motor: use those watts!

How powerful is this electric hybrid bike's motor?

The power of the 36 volt brushless rear motor is 250 watts.

It has an engine torque up to 42 Nm. This number tells you the bike's ability to take on climbs.

The motor is also connected to a cadence sensor that uses the movement of the pedals to determine how much electrical assistance to provide.

What is the assistance sensor for on a hybrid e-bike?

On an electric hybrid bike, the sensor is what triggers the assistance.

The RS 100E has a highly responsive cadence sensor (24 magnets) that provides gentle, smooth assistance.

Did you know...? The more magnets the sensor has, the more responsive and less jerky the assistance will be.

All about this electric hybrid bike's battery

This hybrid e-bike has a battery with LG or Samsung lithium-ion 36V 10.5Ah cells with a capacity of 378Wh.

It is locked in place (the bike comes with two keys) with a system that stops it vibrating.

The battery can be removed to make it easier to charge.

It can be charged on or off the bike

Battery weight: 2.5 kg

Connect your bike to unleash its full potential!

Download the free Decathlon Ride application:

1. get a real-time dashboard (instant speed, distance covered, battery level, etc.)

2. find details of your statistics (route taken, assistance mode used on each section, average speed).

3. to update your bike.

The Decathlon Ride application is compatible:

- For Apple devices: iOS 8 and later versions

- For Android telephones: Android 7 and later versions

How does the control screen work on this electric hybrid bike?

The RS 100E electric hybrid bike has a backlit LED screen that's easy to read both day and night.

It's positioned close to the left handle so that you can easily switch between the 3 assistance modes.

You can also control the bike's lights and switch it to Walk mode.

The remaining battery life is shown by an LED indicator.

The screen will soon be able to connect to the Decathlon E Ride app via Bluetooth so that you can enjoy even more features.

A frame designed for less weight and more comfort

Our engineers have designed the unisex frame of the RS 100E electric hybrid bike out of 6061 aluminium to make it lightweight. Its lowered geometry makes it easy to climb onto, keeping both men and women comfortable.

You can also customise the frame as you like using the bottle cage and pannier rack holes.

The removable derailleur hanger can be changed if needed.

Adjustable suspension fork

To keep you as comfortable as possible on all trails, our designers have used a Suntour coil suspension fork that can be adjusted according to the user's weight:

• 1 1/8" aluminium steerer tube

• 63 mm travel

• Aluminium blade

When correctly adjusted, the fork will absorb bumps in the ground to keep your rides enjoyable.

Derailleurs and drivetrain: enjoy the speed!

The RS100E electric hybrid bike has 6 gears controlled by a Shimano grip shifter that's easy to use, even when you're wearing gloves! In detail:

•Freewheel: 6 speeds

•Single chainring: 44 teeth

•Cogs: 14/28

•KMC Z6 CL573 rust-resistant chain with quick link

•Rear derailleur: B'Twin RD M21

•Anti-derailment ring

Hybrid tyres: put rubber to the road

We've equipped this RS100E electric hybrid bike with comfortable, all-round CST PIKA tyres with puncture protection so that you can ride anywhere.

In addition, we've opted to use self-sealing inner tubes to help retain pressure and increase resistance to punctures.

The recommended pressure for these tyres is between 4 and 5 bars (details on the tyre's sidewall).

Dimensions: 700 x 42C (44-622)

28-inch double-walled wheels to go further!

Hit the roads and trails with the Riverside 100E. With its black, double-walled, aluminium rims, it's perfect for going off-road.

To transport your bike, the quick-release on the front wheel makes it easy to remove.

More details: 28-spoke front wheel and 36-spoke rear wheel.

Rear wheel nut can be removed with an 8mm Allen key. (Compatible with B'Twin 900 multitool).

Wheel diameter: 28 inches (23-622).

Rim width: 23C

Mechanical disc brakes: control your braking

With the RS 100 E electric hybrid bike and its 160 mm Hayes MX5 mechanical disc brakes, you can ride safely absolutely anywhere (dry / wet ground).

TS360A aluminium brake levers

Handlebars, steering, stem: keep control of your electric hybrid bike

All parts of this hybrid bike's frame have been designed to make it highly manoeuvrable: Semi-raised 620 mm steel handlebar (640 mm in size L)

60 mm-long, 1 1/8" aluminium stem

Aheadset 1 1/8" semi-integrated headset

Two 5 mm-high aluminium spacers

B'Twin ergonomic grips

Saddle: be comfortable

Nothing's more important when cycling than being comfortable in the saddle, especially if you're going for a long ride. That's why our teams have developed this gel trekking saddle that's exclusive to B'Twin.

Technical details: Aluminium seat post. Collar dimensions = 35 mm.

Seat post diameter = 28.6 mm.

Tool-free saddle height adjustment (quick-release).

Crank / Pedals

The Riverside 100 electric bike comes with versatile single-piece plastic pedals with a wide pedalling surface to help keep your foot on the pedal and be as efficient as possible.

Technical details

170 mm aluminium cranks

44 T single chainring

Plastic protective cover


The Riverside 100E hybrid bike has built-in lights that are powered by the battery.

The front headlight is fixed to the fork and the rear light is under the saddle.

The cables are routed through the frame and seat post.

These powerful 20 lux LED lights have a wide beam (120 lumens for seeing and being seen from 130°).

The lights are controlled on the handlebars via the control screen.

RS100E electric hybrid bike accessories

The Riverside 100E electric hybrid bike comes with a stand, bell, wheel reflectors and pedals.

Depending on the type of accessory and size of the bike, it is compatible with:

• mudguards

• double stand

• bottle cage

• rear pannier rack

• front basket and bag

• child seat on the pannier rack or frame

• trailer

To find out more, please speak to a sales assistant.

How much does the Riverside 100E weigh?

The Riverside 100E hybrid bike weighs:

• 22.2 kg in size S with the battery.

• 22.3 kg in size M with the battery.

• 22.4 kg in size L with the battery.

• 19.5 kg in size S without the battery.

• 19.6 kg in size M without the battery.

• 19.7 kg in size L without the battery.

The bike is supplied with B'Twin Flat platform pedals.

The total weight (bike+cyclist) should not exceed 120kg.



Bike frame: 100.0% Aluminium

Tips for storage and maintenance

Restrictions on use

Not suitable for mountain bikes and BMX.


Test product

The total weight (bike + luggage + cyclist) should not exceed 120kg.Before implementation in stores, our bikes are tested by many bike trekking enthusiasts. They ride several thousands of kilometres to be properly approved. These tests enable us to guarantee comfort, ease of use and versatility to meet your expectations.

Parts guarantee

Lifetime guarantee: frame, stem and handlebar. Parts: 2 years.