EC-4 cranks are narrow fit for road/gravel ebikes, compatible with the following motors which use a steel ISIS spline:
- Brose Mag
- Fazua-R50
- TQ-HPR50
- Giant E+ System BBSS (Hub Motor)
Not compatible with e-mountain bikes as these arms have a narrow fitment.
Not compatible with Specialized Levo/Kenevo/Vomo/Vado.
GUIDESECrank Fitment Guide:
Specification
LEFT & RIGHT SET | Carbon eCranks
AL main crank bolt with self-extractor | M24 Bolt for ISIS eCranks.
8mm Allen wrench for install/removal of cranks | 50Nm torque.
Please Note: Carbon eCranks come with crank boot/protectors.
Q-Factors:
Q = 178mm : "Road/Narrow" installed on Brose Mag motor
Q = 163mm : "Road/Narrow" installed on FazuaR50 motor
Q = 163mm : "Road/Narrow" installed on TQ-HPR50 motor









