The Btwin Rockrider E-ST 900 27.5+ electric mountain bike.
The Samsung battery with the motor, a BROSE T Aluminium provide 70nm of torque.
The Shimano Deore for the drive train and ST 900 with a single chainring.
RRP : £1699.99
STURDY, PLAYFUL FRAME
The frame was designed using 6061 aluminium with hydroformed tubes.
Forged aluminium parts make it compatible with the new 27.5″+ tyre format in the rear.
Frame geometry with short bases for easier steering.
MOTOR WITH 70NM TORQUE
The BROSE T Aluminium central motor, designed for high altitude mountain biking:
– 70 Nm torque for steep gradients
– belt for an ultra-quiet motor
– sealed bearings for tough environments.
SAMSUNG BATTERY CELLS
Equipped with SAMSUNG SDI cells.
BATTERY LOCK
Battery designed that locks in place with a simple lever.
A key lock to protect from theft.
ROCKSHOX FRONT SUSPENSION
Rockshox JUDY fork with 120 mm of travel.
– a thru axle and tapered steerer tube.
– pneumatic spring
– rebound adjustment and lockout.
CONTROL SCREEN
Convenient LCD control screen.
4 assistance modes available: Eco+, Economy, Standard, Boost.
Assistance level
Battery level
Speed
Remaining battery life
Distance covered
Micro USB plug for charging your smartphone/GPS/camera…
4 ASSISTANCE MODES
Mode 0 – Deactivated
The battery is not used.
Mode 1 – Economy +40%:
Mode 2 – Economy +80%:
Mode 3 – Standard +160%:
Mode 4 – Boost +320%
SINGLE CHAINRING DRIVETRAIN
The E-ST900 electric bike has a single chainring and ChainFlow 3D anti-drop technology to prevent chain drops.
A single shifter on the right handlebar makes it easy to shift between the 10 speeds.
– ChainFlow anti-derailment 34-tooth chainring
– SHIMANO DEORE M6000 Shadow+ 10-speed rear derailleur with long cage
– SHIMANO DEORE M6000 right shifter
– SHIMANO DEORE 10-cog cassette (11-42 teeth)
– KMC E10 Turbo special e-bike chain
27.5+ SUNRINGLE DUROC 40 WHEELS
– 36 mm rims and 32 spokes at the front and rear
and a good hold on wide (2.8″) tyres.
– BOOST thru axles (12×148 rear, 15×110 front)
– Aluminium hubs with sealed bearings
– TUBELESS READY rims: you will need tubeless tyres, Presta valves, and puncture
PLATFORM PEDALS
ROCKRIDER Flat MTB platform pedals. The pedal surface is
wider and the dots more pronounced.
HUTCHINSON TYRES
The E-ST900 mountain bike is equipped with Hutchinson Taipan Koloss 27.5+ tyres with a 2.8″ cross-section.
HYDRAULIC DISC BRAKES
The Tektro TKD32 hydraulic disc brakes on
the front and rear for powerful, progressive braking. Oversized 180mm diameter discs.
HANDLEBARS, STEM, GRIPS
The adjustable stem brings the E-ST 900 controls to your hands. The all-aluminium ROCKRIDER stem is
70 mm (size S), 80 mm (size M/L), or 90 mm (size XL) and can be raised to 5 adjustment intervals:
+ 0mm, + 7.5mm, + 15mm, + 22.5mm, + 30mm.
– 720mm oversize ROCKRIDER SPORT aluminium handlebar
– ROCKRIDER SPORT “soft touch” ergonomic grips
Rockrider E-ST 900 Electric Mountain Bike
