Rockrider 27.5″ Electric Mountain Bike E-ST 500

The Rockrider electric mountain bike is perfect for any terrain, boasting climbing power to boost your hill and mountainous rides.Fitted with an advanced control display to measure autonomy, level of pedal assistance and speed, keep track of your progress in real-time. Enjoy seamless pedaling for all terrain.

Motor

BROSE C Aluminium motor
Mid-drive position
50 Nm torque
Torque sensor
Max assistance: 280%
The electrical assistance cuts out above 25 km/h in accordance with EU regulations

Battery

Samsung SDI or LG
Capacity: 420 Wh
Our battery supplier sources its minerals responsibly and sustainably, and is part of the “Responsible Minerals Initiative”.

Display

ERGO 500
3 assistance modes: Eco / Standard / Boost.
Walk mode.
Stats displayed: Active assistance mode / Battery level / Speed (current, average, max) / Remaining battery / Distance covered (total and trip)

Weight

S: 22.8 kg
M: 22.9 kg
L: 23.1 kg
XL: 23.2 kg

Net weight without pedals

Frame

ROCKRIDER COMFORT GEOMETRY FRAME in 6061 aluminium with hydroformed tubes
12×148 mm Boost
Seat tube diameter: 31.6 mm
Tapered head tube
1 bottle cage mounting point

Drive train

34T 3D ChainFlow chainring with chain guide
MICROSHIFT ACOLYTE 8-speed rear derailleur, medium cage
Crank: 175 mm
MICROSHIFT ACOLYTE right shifter
MICROSHIFT 8-sprocket 12-42 T cassette
KMC E8S special electric chain

Suspension

SUNTOUR XCM fork
Travel: 120 mm
Dampers: 30 mm
Axle: QR
Format: 9 x 100 mm

Wheels

Rockrider Tubeless Ready (needs tubeless tyres, special Presta valves and tyre sealant)
27.5″, compatible with wide tyres: up to 2.5″
23 mm (width between hooks)
32 spokes
6-bolt disc
Freehub: HG

Brakes

Tektro M276
Hydraulic disc brakes
2 piston
160 mm front and rear

Riding position

ROCKRIDER SPORT “oversize” 720 mm wide alu handlebar
The 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.
ROCKRIDER SPORT “soft touch” grips

Saddle / Seat post

ROCKRIDER CORE COMFORT saddle
Aluminium 31.6 mm seat post

Tyres

HUTCHINSON GILA 27.5″ x 2.35″
or
HUTCHINSON KRAKEN 27.5″ x 2.3″
or
MICHELIN FORCE XC 27.5″ x 2.25″

depending on availability

Pedals

Rockrider 520 Grip resin flat pedals

Accessories

Your mountain bike comes with a bell, lighting, wheel reflectors, and pedals.
The frame is compatible with:
– front and rear mudguards
– stand
– bottle cage (on the top tube)
– saddle bag
– rear pannier rack (to be mounted on a stay or special rack for wide bikes with 150 mm rear wheel axles)
– child seat