Rotor eKAPIC BROSE® QF170 CRANK ARMS 175 mm

The eKAPIC cranks are forged from 6082 aluminum and CNC-machined, crafted with our proprietary Trinity Drilling System for the perfect balance of weight and stiffness, specifically optimized for the demands of e-biking. These specialized eMTB cranks leverage the benefits of ROTOR's decades of research, technology, engineering, and design from its existing mountain bike crank series.

Narrow Q-Factor
The new eKAPIC cranks are designed to have a narrow Q-factor to enhance pedaling ergonomics. This Brose-compatible version has a Q-factor of either 170 or 184 millimeters. Be sure to choose the correct version for your bike. The pedaling position feels very similar to that of a non-motorized bike and is based on decades of research into bike fit and biomechanics.

Universal Tooth Design
In the race for proprietary designs that promote the strength or efficiency of one system over another, a often-overlooked pivot point is the chainring. It must be compatible with the entire drivetrain, from the cranks to the cassette to the chain and back again. Our development team has finally found the solution and created a universal tooth profile that allows compatibility with any 1x e-MTB group on the market.

The ROTOR Universal Tooth Design is compatible with SRAM®, Shimano®, and KMC® MTB chains.

eKAPIC Cranks for Brose Mag - Technical Specifications
Crank lengths (mm): 165 / 170 / 175
Q-Factor (mm): 170
Q-Factor (mm): 184 / FAZUA Q-Factor (mm): 169
Weight (170mm): 402 grams
Spindle interface: ISIS Drive
Material: Forged & CNC-machined 6082 aluminum
Included: Crank arm in the desired length and black bumper set.