ROCKRIDER e ST 900 MOUNTAIN BIKE grey

Ref: 8487240

27.5"+ ROCKRIDER e-ST 900 MTB DARK GREY/LIGHT GREY

This electric mountain bike is designed for RIDING ON ANY MOUNTAINOUS TERRAIN.

There are no limits to where you can go with the E-ST 900. Overcome every obstacle with its high-torque central motor (70Nm) and stay out for longer thanks to its 500Wh battery.

Presentation of the ROCKRIDER E-ST 900

VTT électrique E-ST 900 ✌ ROCKRIDER SHOP

First use

INFLATING THE ORIGINAL TYRES (TUBE-TYPE)
INFLATING YOUR TUBELESS TYRES
ADJUSTING YOUR FORK
BEDDING IN YOUR BRAKES
ADJUSTING THE HEIGHT OF YOUR HANDLEBARS
ALIGNING YOUR HANDLEBAR
POSITIONING YOUR BRAKE LEVERS
FITTING YOUR GPS
ADJUSTING THE HEIGHT OF YOUR SADDLE
ADJUSTING THE TILT OF YOUR SADDLE
CHANGING YOUR PEDALS
HOW TO CONVERT YOUR WHEELS TO TUBELESS

Controlling your screen

For 2021, we've changed the control screen on the E-ST 900 mountain bike. The new model is still made by our partner Brose, but it looks and works differently.

Got a question about your battery? 

HOW LONG DOES IT TAKE THE BATTERY TO CHARGE?
CAN YOU RIDE WHEN YOUR BATTERY IS FLAT?
CAN YOU LEAVE YOUR CHARGER CONNECTED TO THE BATTERY EVEN AFTER IT HAS FINISHED CHARGING?
SHOULD YOU WAIT UNTIL YOUR BATTERY IS COMPLETELY FLAT BEFORE CHARGING IT?
DOES THE BATTERY CHARGE WHILE CYCLING?
WHAT SHOULD YOU DO WITH THE BATTERY WHEN IT WEARS OUT?
HOW SHOULD YOU STORE YOUR BATTERY?
WHERE CAN YOU BUY A REPLACEMENT BATTERY?
WHAT IS THE LIFETIME OF YOUR BATTERY?

THE RIGHT EQUIPMENT IN CASE OF A HICCUP

You need to have the right equipment with you when you're out and about on your mountain bike so that you can take care of a puncture, a broken chain or any other type of setback. Here's a selection of products that can get you out of a tight spot or two.

equipment-mountain-bike-st520-rockrider

HAVE A PROBLEM?

> ELECTRICAL

YOUR BATTERY WON'T CHARGE
ONE OR MORE LEDs ON YOUR BATTERY IS/ARE FLASHING
THE SCREEN IS SHOWING AN ERROR CODE
LOW OR REDUCED RANGE

> MECHANICS

THE BACK WHEEL IS MAKING A NOISE
YOUR WHEEL IS BUCKLING AFTER SEVERAL RIDES
YOUR GEARS ARE NOT SHIFTING PROPERLY
LOST KEY

MAINTAINING YOUR MOUNTAIN BIKE

Servicing your bike will keep all of its parts working for as long as possible and ensure you have the most fun when riding. Aside from the aesthetic aspect of having a clean bike, failing to service it can lead to problems, and problems lead to accidents: jammed cables, rust, leaks, premature wear, etc.

Good maintenance is good for your performances, while your bike's parts will also last longer, which means a lower environmental impact.

As soon as you start using the bike, some components will move slightly.
This is why we offer a free tune-up of your mountain bike within six months of purchase

HOW TO CLEAN YOUR E-ST 900
STORING YOUR ROCKRIDER E-ST 900 CORRECTLY
IMPROVING YOUR BATTERY'S LIFESPAN
CHANGING THE BRAKE PADS
SERVICING YOUR FORK
CHECKING CHAIN WEAR

COMPATIBLE ACCESSORIES

ROCKRIDER E-ST 900 MOUNTAIN BIKE
500 BOTTLE CAGE
THULE EASYFOLD BIKE RACK
LIGHTS

Spare parts

Need to change some parts? You'll find all our spare parts for the E-ST 900 MOUNTAIN BIKE right here.

SRAM-CASSETTE-10S
ROCKRIDER E-ST900 electric mountain bike

INSTRUCTIONS AND CERTIFICATE OF COMPLIANCE

ROCKRIDER E-ST900 electric mountain bike

HAVEN'T BEEN ABLE TO FIX YOUR PROBLEM OR FIND WHAT YOU NEED?

Please contact one of our technicians who will be happy to help

e-ST 900 Rockrider Electric MTB
ROCKRIDER E-ST900 electric mountain bike

Our commitments

ROCKRIDER provides a lifetime warranty on the frame, handlebar and stem of your mountain bike (under normal conditions of use).

All other parts have a two-year warranty.

When you start riding your bike, some components will move slightly. This is why we offer a free tune-up of your mountain bike within six months of purchase. 

Your feedback matters!

Whether it's good or bad, we want to know. Here's why your feedback is so important: