Praxis Works eCrank

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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 Mo tor) Not compatible with e-mountain bikes as these arms have a narrow fitment. Not compatible with Specialized Levo/Kenevo/Vomo/Vado. GUIDESECrank Fitment Guide:Click here for the Service Guide Show more