Semi-rigid electric mountain bike 27 5, E-St 900 Gray

Lifetime (setting, gallows, hangers). Availability of spare parts: 2 years. 500 cycles warranty battery.

Semi-rigid electric mountain bike 27’5 “+, e-st 900 turquoise

This electric mountain bike is designed for mountain hikes in the mountains.

With this electric mountain bike (VTTAE) E-St 900, do not put any limits. Cross all obstacles with its central torquey engine (70 Nm) and extend your hikes thanks to its 500Wh battery.

Size Guide Select a size

Select a size
Long term rental

Our services :

• Returns and exchanges offered for 365 days
• Drive withdrawal or at the store reception

Product advantages

Power

Aim the mountain leader thanks to its 70Nm to 250W torque engine.

Autonomy

Roll 3 hours on average in sports mountain bike use thanks to its 500Wh .

Pedaling fluidity

Forget assistance with its integrated central engine. The ideal in mountain biking.

Morphological adaptability

Comfort in the feminine: saddle, adjustable fork, raised position, close brakes

Piloting comfort

Enjoy: raised position, 120 mm suspension, very large tires & saddle Ergofit

Trajectory control

RockShox Judy fork, extra large hutchinson tires

Technical informations

Is electric mountain biking a sport ?

To move forward you have to pedal !
Electric assistance completes your pedaling up to +320% to help you overcome obstacles and enjoy your mountain bike hikes longer and smooth levels within a group.
The engine stops electric assistance as soon as you stop pedaling.
Pedestrian mode compensates for the weight of mountain biking when you need to get to the ground.

What mountain bike to choose ?

Be careful, for the Smail S, the minimum size is 1m60 and not 1m50 as indicated in the drop -down menu.

If you are on the border between 2 sizes:
Take the lower size to favor the piloting phases (bike easier to handle).
Take the upper size to favor pedaling phase and comfort (more straightened back).

The word of the team

VTT enthusiasts, we have fully designed and developed this E-St 900 electric mountain bike in France at the Btwin Village (Lille). We have drawn, designed and tested the E-St 900 mountain bike, involving mountain bikers at all stages of the project.

A frame to combine robustness & pleasure to pilot

The frame of the VTTAE Rockrider E-ST900 was designed in 6061 aluminum with hydroflved tubes. For what ? So that this electric mountain bike is more robust and the battery fits well in the framework.
Its forged aluminum parts allow it to be both compatible with the new 27.5 “+ tire format (wider than the 27.5”) at the back, and keep an easy to handle bike. We have retained a frame geometry with short bases for the quality of piloting.

A 70NM torquey engine

The central brose t aluminum engine is specially designed for mountain biking in the mountains:
– A couple of 70 Nm cut for steep slopes and large elevation
– Metal core for maximum robustness
– a belt drive for an ultra -silent engine
– Watered bearings to withstand the climate environment, sometimes unfavorable in mountain biking.

A battery with Samsung cells

Our battery is equipped with SAMSUNG SDI cells, recognized for their high level of reliability and safety.
Our battery supplier guarantees responsible and sustainable mining that is part of the “Minerals Initiative” groups “.

An easy to lock battery

Our Rockrider mountain bike team has designed a battery that locks with a simple lever. Child’s play !
This tightening system makes it possible to avoid any vibration of the battery when you venture into mountain bikes on damaged terrain.
A key lock is also present if you want to protect your flight battery. For example, if you park your electric mountain bike in the street.

A simple and ergonomic control screen

A discreet LCD control screen. Placed right next to your left handle, do not let go of your handlebars and choose between the 4 assistance modes available: disabled, economic, standard and boost.
You will also find all the necessary information there:

Level of assistance
Battery level
Speed ​​(instantaneous, average, maximum)
Remaining autonomy
Distance traveled (total and trip)

4 assistance mode to meet all needs

Mode 0 – Disabled
The battery is not used.

Mode 1 – Economy +40%:
Extend your outings while preserving the battery. Ideal in boost to approach small elevation elevations.

Mode 2 – Economy +80%:
Gain in power. Ideal in boost to follow other mountain bikers.

Mode 3 – Standard +160%:
It is the most versatile mode. Climb any elevation, without getting too tired & while keeping a reasonable consumption.

Mode 4 – Boost +320%

The RockShox front suspension to keep control and amortize the vagaries of the field

Face the obstacles (roots, stones, stones. ) in all serenity thanks to the 120 mm travel RockShox Judy hyraulic fork.
This fork has:
– of a conical pivot and axis crossing for more robustness and rigidity.
– a pneumatic spring for optimal adjustment according to your weight
– blockage and relaxation adjustment for better control, according to your practice field.

Mono Transmission Plateau

To avoid derailing, the E-ST900 electric bike has a single tray with Chainflow 3D Anti-treatment technology.
The 10 speeds are very easy to manage, with a single controller to the right of your handlebars.

In detail :
– Chainflow & anti -treatment 34 Touteau
– Shimano Deore M6000 Shadow rear derailleur+ 10 speeds, braking screed
– Shimano Deore M6000 right controller
– Shimano deore 10 gable cassette 11 to 42 teeth
– KMC E10 Special Electric Turbo

Wheels 27.5+ Sunringle Duroc 40

These wheels were specially designed for this mountain bike:
– 36mm rims (width between hook), 32 rays at the front and rear, for more robustness and good support for 2.8 “wide tires.
– Crossing axes in 12×148 mm boost format at the rear and 15×110 mm at the front, for more rigidity
– Aluminum hubs with waterproof bearings.
– Tubeless REDY rims: you will need Tubeless tires, Presta specific valves and anti-hassle liquid.

Hutchinson tires

To feel safe on all terrains and to have motor skills suitable for your engine, the E-ST900 mountain bike is equipped with Hutchinson Taipan Koloss 27.5 “+ in section of 2 wide of 2.8 “. Our tester mountain bikers have particularly appreciated these tires that hang well on the ground. Mounted on wide rims, these tires assure you grip, motor skills and comfort, on all terrains.

Double brakes with 180mm hydraulic discs: Master your braking

No matter the conditions in which you drive (dry/wet/mud), the Tektro TKD32 hydraulic disc brakes, for the front and rear, allow powerful and progressive braking. Surprised discs 180mm in diameters bring you even more power.

Holder, gallows, handles: Take control on the handlebars

With its readjustable stem, the E-ST900 mountain biking commands fall on hand. All aluminum, the 60 mm BTWIN gap (size S, M and L) can be raised thanks to 5 adjustment bearings: + 0 mm, + 7.5 mm, + 15 mm, + 22.5 mm, + 30 mm.

In detail :
– narrower aluminum hanger for women of 680 mm
– B’twin Sport Comfort, Ergonomic and Lock-on handles for a good grip and a pleasant contact with your hands.

Ergonomic woman saddle: comfortable and sporty seat

Because your mountain bike hikes will be longer and longer, it is important to have a seat adapted to the women’s basin. Our teams therefore imagined the ergonomic saddle, hollowed out in the center to avoid friction and bring more comfort.

The aluminum seatpost of 31.6 mm in diameter guarantees compatibility with most adjustable and suspended seatpins

Flat pedals

The bicycle is delivered with 520 GRIP platform pedals (COD.8487130).The support surface is wider and the pins are more present for better footing on the pedal.
Nevertheless, if you want a better performance in the pedaling and for better control of mountain biking during management, we advise you to replace them with automatic pedals with platform or with large aluminum flat pedals

Accessories

Your E-ST900 mountain bike is delivered with doorbell, lighting, wheel catadiopters (reflectors) and pedals.
The frame is compatible with:
– Front and rear guards
– Battle crutch
– Door (on horizontal tube)
– saddle
– Rear luggage carrier (with a drooling or special bicycle fixing, 148mm center distance at the rear wheel & large tire 2.8 “)
– Children’s seat
.

Our advice for the first outing

Advice n ° 1
In mountain biking, we are never safe from a fall: do not forget to wear a helmet.

Advice n ° 2
A puncture can always happen, remember to take a repair kit and a 6mm allen key to disassemble your wheels.

Council n ° 3
If you don’t want to stop to drink, remember to take water in a can or a water bag to access it while driving.

Guarantee

Lifetime (setting, gallows, hangers). Availability of spare parts: 2 years. 500 cycles warranty battery.

Semi-rigid electric mountain bike 27’5 “+, e-st 900 gray

This electric mountain bike is designed for mountain hikes in the mountains.

With this electric mountain bike (VTTAE) E-St 900, do not put any limits. Cross all obstacles with its central torquey engine (70 Nm) and extend your hikes thanks to its 500Wh battery.

Dark gray / light gray

Size Guide Select a size

Select a size
Long term rental

Our services :

• Returns and exchanges offered for 365 days
• Drive withdrawal or at the store reception

Product advantages

Power

Target the mountain leader thanks to its engine with torque from 70nm to 250w

Autonomy

Roll 3 hours on average in sports mountain bike use thanks to its 500Wh

Pedaling fluidity

Forget assistance with its integrated central engine. The ideal in mountain biking.

Piloting comfort

Enjoy: raised position, 120 mm suspension, very large tires, saddle Ergofit

Trajectory control

Manage your trajectory: RockShox Judy fork, Extra Large Hutchinson tires

Technical informations

What mountain bike to choose ?

Be careful, for the cutter S, the minimum size is 1m60 and not 1m50 as indicated in the drop -down menu grid.

If you are on the border between 2 sizes:
Take the lower size to favor the piloting phases (bike easier to handle) and comfort (more straightened back).
Take the upper size to favor pedaling phase with a more elongated position (more adequate position for yield

Is electric mountain biking a sport ?

To move forward, you have to pedal !
Electric assistance completes your pedaling of +320% to help you overcome obstacles.
You enjoy your mountain bike hikes longer.
The engine stops assistance as soon as you stop pedaling.
Pedestrian mode compensates for the weight of mountain biking when you need to get to the ground.

Team word

VTT enthusiasts, we have fully designed and developed this E-St 900 electric mountain bike in France at the Btwin Village (Lille).
We have drawn, designed and tested the E-St 900 mountain bike, involving mountain bikers at all stages of the project.

Robust and player

The frame of the VTTAE Rockrider E-ST900 was designed in 6061 aluminum with hydroflved tubes. For what ? So that this electric mountain bike is more robust and the battery fits well in the framework.
Its forged aluminum parts allow it to be both compatible with the new 27.5 “+ tire format (wider than the 27.5”) at the rear, while keeping an easy to handle bike. We have retained a frame geometry with short bases for the quality of piloting.

70nm torquey engine

The aluminum brose central engine is specially designed for the practice of mountain biking in high mountains:
– A couple of 70 Nm cut for large obstacles and big elevations
– Metal core for maximum robustness
– A belt engagement for an ultra -silent engine
– and waterproof bearings to withstand the climate environment, sometimes unfavorable in mountain biking.

Samsung battery cells

Our battery is equipped with SAMSUNG SDI cells, recognized for their high level of reliability and safety.
Our battery supplier guarantees responsible and sustainable mining that is part of the “Minerals Initiative” groups “.

Battery locking

Our Rockrider mountain bike team has designed a battery that locks with a simple lever. Child’s play !
This tightening system makes it possible to avoid any vibration of the battery when you venture into mountain bikes on damaged terrain.
A key lock is also present if you want to protect your flight battery. For example, if you park your electric mountain bike in the street.

Control screen

A discreet LCD control screen. Placed right next to your left handle, do not let go of your handlebars and choose between the 4 assistance modes available: Eco+, Economic, Standard and Boost.
You will also find all the necessary information there:

-Level of assistance
-Battery level
-Speed ​​(instantaneous, average, maximum)
-Remaining autonomy
-Distance traveled (total and trip)

4 assistance modes

Mode 0 – Disabled
The battery is not used.

Mode 1 – Economy +40%:
Extend your outings while preserving the battery. Ideal in boost to approach small elevation elevations.

Mode 2 – Economy +80%:
Gain in power. Ideal in boost to follow other mountain bikers.

Mode 3 – Standard +160%:
It is the most versatile mode. Climb any elevation, without getting too tired & while keeping a reasonable consumption.

Mode 4 – Boost +320%

Rockshox front suspension

Face the obstacles (roots, stones, stones. ) in all serenity thanks to the 120 mm travel RockShox Judy hyraulic fork.
This fork has:
– of a conical and axis pivot crossing for more robustness.
– a pneumatic spring for optimal adjustment according to your weight
– blockage and relaxation adjustment for better control, according to your practice field.

Mono Transmission Plateau

To avoid derailing, the E-ST900 electric bike has a single tray with Chainflow 3D Anti-treatment technology.
The 10 speeds are very easy to manage, with a single controller to the right of your handlebars.

In detail :
– Chainflow & anti -treatment 34 Touteau
– Shimano Deore M6000 Shadow rear derailleur+ 10 speeds, braking screed
– Shimano Deore M6000 right controller
– Shimano deore 10 gable cassette 11 to 42 teeth
– KMC E10 Special Electric Turbo

Wheels 27.5+ Sunringle Duroc 40

These wheels were specially designed for this mountain bike:
– 36mm rims (width between hook), 32 rays at the front and rear, for more robustness and good support for 2.8 “wide tires.
– Crossing axes in 12×148 boost format behind and 15×110 in front, for more robustness
– Aluminum hubs with waterproof bearings.
– Tubeless REDY rims: you will need Tubeless tires, Presta specific valves and anti-hassle liquid.

Hutchinson tires

To feel safe on all terrains and to have motor skills suitable for your engine, the E-ST900 mountain bike is equipped with Hutchinson Taipan Koloss 27.5 “+ in section of 2 wide of 2.8 inches. Our tester mountain bikers have particularly appreciated these tires that hang well on the ground. Mounted on wide rims, these tires assure you grip, motor skills and comfort. And that on all terrains.

Hydraulic disc brakes

No matter the conditions in which you drive (dry/wet/mud), the Tektro TKD32 hydraulic disc brakes, for the front and rear, allow powerful and progressive braking. Surprised discs 180mm in diameters bring you even more power.

Handle, gallows, handles

With its adjustable stem, the E-St 900 commands fall on hand. All in aluminum the 70 mm rockrider gallows (size S), 80 mm (size m / l) and 90 mm (size XL) can be raised thanks to 5 adjustment bearings: + 0 mm, + 7.5 mm, + 15 mm, + 22.5 mm, + 30 mm.
In detail :
-Rockrider sport “Oversize” aluminum hanger 720 mm wide
-Ergonomic Rockrider Handles “Soft Touch”, for a good grip and pleasant contact

SADDLE

Because your mountain bike hikes will be longer and longer, it is important to be well “seated”. Our teams therefore imagined the exclusive Rockrider Ergofit Pro saddle. Suitable for all pool widths, its “hammock” profile is appreciable during sports hikes.

The aluminum seatpost of 31.6 mm in diameter guarantees compatibility with most adjustable and suspended seat stems on the market.

Flat pedals

The bicycle is delivered with 520 GRIP platform pedals (COD.8487130).The support surface is wider and the pins are more present for better footing on the pedal.
Nevertheless, if you want a better performance in the pedaling and for better control of mountain biking during management, we advise you to replace them with automatic pedals with platform or with large aluminum flat pedals

ACCESSORIES

Your E-ST900 mountain bike is delivered with doorbell, lighting, wheel catadiopters (reflectors) and pedals.

The frame is compatible with:
– Front and rear guards
– Battle crutch
– Door (on horizontal tube)
– saddle
– Rear luggage carrier (with a drooling or special bicycle fixing, 148mm center distance at the rear wheel & large tire 2.8 “)
– Children’s seat
.

Our advice for the first outing

Advice n ° 1
In mountain biking, we are never safe from a fall: do not forget to wear a helmet.

Advice n ° 2
A puncture can always happen, remember to take a repair kit and a 6mm allen key to disassemble your wheels.

Council n ° 3
If you don’t want to stop to drink, remember to take water in a can or a water bag to access it while driving.

Maintenance council

Leave your battery on the bike in case of water jet washing. It will protect oxidation connectors.

Guarantee

Lifetime (setting, gallows, hangers). Availability of spare parts: 2 years. 500 cycles warranty battery.