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Electric Assistance MTB 500 Wh central motor 70NM

  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
  • 15 - Cycling Cycling - E-ST 900 Women's Electric Mountain Bike - 27.5+ ROCKRIDER - Bikes
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15 - Cycling

ROCKRIDER E-ST 900 Women's Electric Mountain Bike - 27.5+

ROCKRIDER
3.8/5
User rating
Decathlon
until £1,599.99 -%

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£1,599.99**
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Our most powerful Electric Mountain Bike to date. This Rockrider pedelec hardtail MTB will allow you to climb faster and rider further than before. A true off road e-bike built for comfort and control thanks to the relaxed geometry, wider bars, 120mm travel Rockshox Judy forks, Shimano Deore M6000 groupset, 40mm rims, front & rear thru axles and wide 27.5x2.8 tyres. Powered by the reliable BROSE T 90 Nm central motor with a Samsung SDI cell battery (504Wh 36V 14Ah) and built around the Lifetime warranty hydroformed alloy Rockrider frame, this e-MTB really is built to last.
 

PRODUCT BENEFITS

Anatomic design Comfort for women: saddle, adjustable fork, raised position, closer brakes
Power Overcome any slope with its motor with 90 Nm torque.
Autonomy Average ride: 4 hours, or 58km, of sports MTB use - 504Wh 36V 14Ah.
Smooth pedalling Pedal naturally with its built-in central motor. An essential for MTB.

TECHNICAL INFORMATION

IS ELECTRIC MOUNTAIN BIKING A SPORT?

You have to pedal to go forward!
Electric assistance gives you up to 320% more pedalling power to get through obstacles, enjoy your mountain bike rides for longer, and help slower riders keep up in a group.
The motor stops when you stop pedalling.
The pedestrian mode offsets the mountain bike's weight when you need to stop.

AN ELECTRIC MOUNTAIN BIKE FOR WOMEN

The "women comfort" saddle on the Women's E.ST 900 is ergonomic: with a hollow centre and sporty design to prevent chafing and irritation for mountain bike rides lasting 3 hours or more.
The 31.6 mm diameter aluminium seat post is compatible with most adjustable, suspended saddles on the market.
The 60 mm stem is shorter, as women's torsos are shorter. This prevents an overly horizontal position which may cause back or neck pain. The position can be raised.

HOW TO CHOOSE YOUR WOMEN'S e-ST 900 MOUNTAIN BIKE SIZE?

Several sizes available:
S: between 1.50m and 1.64m
M: between 1.65m and 1.74m
L: between 1.75m and 1.84m
If you are on the limit between 2 sizes:
Choose the smaller size for easier steering (easier to handle).
Choose the larger size for easier pedalling and comfort (straighter back).

A FRAME FOR STURDINESS AND FUN

The frame of the Rockrider E-ST900 women's bike has been made from 6061 aluminium with hydroformed tubes.
Why?
The battery and motor sit snugly on the frame to improve the robustness of this electric mountain bike.
The forged aluminium parts make it both compatible with the new 27.5"+ tyre format (wider than the 27.5") and easy to manoeuvre.

A MOTOR WITH 70NM TORQUE TO CLIMB ANY SLOPE

The BROSE T Aluminium central motor is specially designed for high mountain biking:
- 70 Nm torque to handle any slope
- metal housing for maximum durability
- belt for an ultra-quiet motor
- and watertight bearings to withstand environmental conditions, which can be tough when mountain biking.

A BATTERY WITH SAMSUNG CELLS

Our battery is equipped with SAMSUNG SDI cells, renowned for their high level of reliability and safety.
Our battery supplier sources its minerals responsibly and sustainably, and is part of the "Responsible Minerals Initiative".

A battery that's easy to lock

Our Rockrider mountain bike team designed a battery that locks in place with a simple lever. Child's play!
This locking system prevents any vibrations to the battery when riding on rough terrain.
A key lock is also installed if you want to protect your battery from theft. For example, if you park your bike in the street.

A simple, ergonomic control screen

A discreet LCD control screen. Located just to the side of your left grip, choose between the four assistance modes without letting go of the handlebars: Deactivated, Economy, Standard, and Boost.
You'll also find a host of useful information:
Assistance level
Battery level
Speed (instant, average, maximum)
Power supplied by the user
Remaining battery life
Distance covered (total and trip)
Micro USB plug for charging your smartphone/GPS/camera...

4 ASSISTANCE MODE + 1 PEDESTRIAN MODE TO MEET ALL YOUR NEEDS

Mode 0 - Deactivated
The battery is not used.
Mode 1 - Economy +40%:
Extend your rides while conserving battery life. A perfect helping hand for small gradients.
Mode 2 - Economy +80%:
Gain power. A perfect helping hand for following other mountain bikers.
Mode 3 - Standard +160%:
This is the most versatile mode. Climb any slope without getting too tired and without using too much power.
Mode 4 - Boost +320%

VERY PRACTICAL PEDESTRIAN MODE!

When you want to put your feet on the ground, you can activate a pedestrian mode on your E.ST520 Women's Mountain Bike. This will engage minimum electrical assistance to compensate for the weight of the bike.
This allows you to easily push your bike without it being too heavy.
Practical: walk right next to it!

HYDRAULIC AND PNEUMATIC ROCKSHOX FRONT SUSPENSION TO KEEP CONTROL

To prevent the chain slipping, the e-ST900 women's electric bike has a single chainwheel with ChainFlow 3D anti-slip technology.
An end to confusion: simply change between the 10 speeds using the single shifter on the right handlebar.
In detail:
- ChainFlow & anti-slip 34-tooth chainring
- Shimano Deore M6000 Shadow+ rear derailleur
- Shimano Deore M6000 shifter
- KMC e10 Turbo electric specific chain
- 11 - 40 Shimano Deore 10 speed cassette

27.5+ Sunringle Duroc 40 WHEELS

These wheels were specially designed for this mountain bike:
- 36mm rims for improved durability and good grip on 2.8" wide tyres.
- BOOST format thru axles (12x148 rear, 15x110 front) for greater durability
- Aluminium hubs with sealed bearings.
- Tubeless ready compatible

HUTCHINSON TAIPAN KOLOSS 2.8" TYRES FOR BETTER GRIP & GREATER COMFORT

So you feel safe on any terrain and for traction adapted to your motor, the E-ST900 women's mountain bike is equipped with Hutchinson Taipan Koloss 27.5+ tyres, 2.8" across.
Our test riders particularly liked these tyres for their grip on the ground - they felt like they could go anywhere.
Mounted on wide rims, these tyres ensure grip, traction, and comfort. On any terrain, all year round.

180MM DOUBLE HYDRAULIC DISC BRAKES: GET A GRIP ON YOUR BRAKING

No matter the conditions you ride in (dry, muddy, wet), the double Tektro TKD32 hydraulic disc brakes on the front and rear provide powerful, progressive braking.
Oversized 180mm diameter discs provide even more power.

PLATFORM PEDALS

The E-ST900 electric bike is supplied with B'Twin Flat platform pedals. The pedal surface is wider and the dots more pronounced to better keep the foot on the pedal.

COMPATIBLE ACCESSORIES

Your E-ST900 women's mountain bike comes with a bell, lights, wheel reflectors, and pedals.
The frame is compatible with:
- front and rear mudguards
- stand
- bottle cage (on the horizontal tube)
- saddle pouch
- rear pannier rack (fixed onto the seat stays or special mounts for wide bikes, 148 mm gap for the rear wheel & 2.8" fat tyre)
- child seat
...

OUR ADVICE FOR YOUR FIRST RIDE

Tip no.1
When mountain biking, there is always the risk of a fall: don't forget to wear a helmet.
Tip no. 2
A puncture could happen at any time, so always remember to take a repair kit and a 6 mm Allen key for removing your wheels.
Tip no.3
If you don't want to stop to drink, bring water in a bottle or water bladder to access it while riding.

Weight

S - 155-164cm: 21.9 kg
M - 165-174cm: 22.1 kg
L - 175-184cm: 22.2 kg
Weight without pedals

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COMPOSITION / ADVICE

Composition
Frame (for bike)
100.00% Aluminium 6061
Stock advice Store it in a warm, dry place away from corrosive products and salty air. Never store with a dead battery and remember to recharge it at least once every six months.
Restricted use : Don't forget to remove the battery to handle the chain.
instructions To get more information about this product, please read instructions
Legal notice Your bike's weight may vary due to tolerances in the components. To make your wheels last longer, we recommend not exceeding the maximum weight of 120kg (rider with mountain bike).

OUR COMMITMENTS

Test Product Our engineers always have real riders test all our products in real conditions. These tests round out our lab tests and let us validate all our products before they hit store shelves.
Guarantee : Lifetime (frame, stem, handlebars). Availability of spare parts: 2 years.Guaranteed for 500 charges.
 

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E-ST 900 Women's Electric Mountain Bike - 27.5+
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