Type 4 eBike Cranks for Gravel Bikes

EC-4 Carbon eCranks – Narrow Fit for Road & Gravel eBikes

The EC-4 eCranks are designed for narrow Q-factor fitment on road and gravel eBikes. Compatible with motors using a steel ISIS spline, these carbon cranks deliver lightweight performance and precise power transfer.

Compatibility

• Compatible with:

  • Brose Mag

  • Fazua Ride 50 (R50)

  • TQ-HPR50

  • Giant E+ System BBSS (Hub Motor)

• Not compatible with:

  • e-Mountain bikes (arms are narrow fit)

  • Specialized Levo, Kenevo, Vomo, Vado

Specifications

• Crankset: Left & Right | Carbon eCranks

• Main Crank Bolt: Alloy M24 with self-extractor for ISIS eCranks

• Installation: 8 mm Allen wrench | 50 Nm torque

• Weight: 514 g (with crank boots)

• Q-Factor:

  • 178 mm on Brose Mag motor

  • 163 mm on Fazua R50 motor

  • 163 mm on TQ-HPR50 motor

Installation & Fitment

Refer to the E-Crank Fitment Guide for detailed installation instructions and compatibility notes.