Description
Rotor has designed the eKAPIC crank arms specifically for E-MTBs with a fourth-generation Bosch motor. They are made out of aluminium and, thanks to Trinity Drilling technology, are characterised by their low weight in relation to their stiffness. The low Q-factor of 171 mm ensures natural, knee-friendly pedalling that feels like riding a bike without electric drive.
Specifications:
- Application:
- Cross Country, All Mountain
- Compatibility:
- 1x
- Chainring Mount:
- Bosch Direct Mount
Technical Information:
- Series:
- KAPIC
- Crank Arm Material:
- aluminium (6082)
- Q-Factor:
- 171 mm
- Recommended Bottom Bracket:
- ISIS Drive
Compatibility:
- E-Bikes with Bosch Gen4 motor
- frame width (measured at a distance of 17 cm behind the centre of the crank axle) plus 4 cm (2 cm for each side) must be less than 17.1 cm (= Q-factor)
Features:
- forged and CNC-machined aluminium
- low weight with high stiffness
- low Q-factor, similar to a bike without motor, for pedalling that is easy on the knees and hips
Technology:
Aluminium CNC
Computer Numerical Control (CNC) milling ensures a precise and uniform production process. This is particularly important when manufacturing components that must function properly and work in congruity with other parts. Thanks to state-of-the-art CNC equipment, Rotor parts are manufactured with extreme precision, down to a hundredth of a millimetre.
TDS
Rotor CNC cranks have a particularly high stiffness due to the Trinity Drilling System (TDS). In this procedure, three full holes are drilled from the bottom bracket to the pedal. This creates a box-like grid, similar to a box girder bridge. This makes the cranks extremely stiff while at the same time reducing weight, resulting in an excellent stiffness-to-weight ratio.
Contents:
- 1 x pair Rotor eKAPIC Bosch crank arms
- 1 x pair Rotor black bumpers
