Decathlon 27.5 Inch Electric Mountain Bike E-st 520 - Grey/yellow

This electric mountain bike has been designed and developed by us to best suit mountain-bike rides on hilly and rolling terrain.

WHAT SIZE MOUNTAIN BIKE TO CHOOSE?

Several sizes available:
S: between 1.50m and 1.64m
M: between 1.65m and 1.74m
L: between 1.75m and 1.84m
XL: between 1.85 m and 2.00 m
If you are on the limit between 2 sizes:
Choose the smaller size for easier steering (easier to handle) and comfort (straighter back).
Choose the larger size for easier pedaling with a more stretched-out position ( more suited to performance).

IS ELECTRIC MTB A SPORT?

You have to pedal to go forward!

The electric assistance boosts your pedaling by 320%, helping you ride over obstacles.
You'll get to enjoy longer MTB rides.
The motor stops when you stop pedalling.
The walking mode compensates for the weight of the bike when you need to put your feet down.

A WORD FROM THE TEAM

Our team of mountain bike enthusiasts created this E-ST 520 electric mountain bike entirely at our B'Twin Village in Lille, France.
We designed and tested the E-ST 520 MTB by involving MTB riders at every stage of the project.

STURDY, PLAYFUL FRAME

The frame of the Rockrider E-ST 520 electric MTB is made of 6061 aluminium with hydroformed tubes. Why? The battery sits snugly on the frame to improve the robustness of this electric mountain bike.
The forged aluminium parts make it compatible with the new 27.5"+ tyre format (wider than the 27.5") in the rear, while remaining easy to manoeuvre. We've kept a frame geometry with short bases for easier steering.

MOTOR WITH 70NM TORQUE

The BROSE T Aluminium central motor is specially designed for mountain biking:
- 70 Nm torque to handle large obstacles and steep gradients
- metal housing for maximum
- belt for an ultra-quiet motor
- sealed bearings to hold up to tough while mountain biking

LG OR SAMSUNG BATTERY CELLS

Our battery is equipped with battery cells from LG or Samsung, (LGC-MG1 or SDI), which are known for their high level of reliability and safety.

BATTERY LOCK

Our Rockrider mountain bike team has designed a battery that locks in place with a simple lever. Child's play!
This locking system prevents the battery vibrating when riding on rough terrain.
There is also a lock in case you want to stop your battery getting stolen. For example, if you park your bike in the street.

CONTROL SCREEN

A discreet LCD control screen. It is located just to the side of your left grip, so you can choose between the 3 assistance modes without letting go of the handlebars: (Deactivated), Economy, Standard, and Boost.
You'll also find a host of useful information:
-Stopwatch
-Current speed
-Average speed
-Maximum speed
-Distance covered
-Total distance
-Battery level
-Remaining battery range (in km)
-Active assistance mode
-Reset

3 ASSISTANCE MODES

Mode 0 - Deactivated
The battery is not used.

Mode 1 - Economy +60%:
Extend your rides while conserving battery life. Ideal when you want a little push on small gradients.

Mode 2 - Standard +120%:
This is the most versatile mode. Climb any slope without getting too tired and without using too much power.

Mode 3 - Boost +320%