MOTORS - Check your Brose or Fazua motor spindle type. These carbon eCranks are made for "ISIS" spindle motors. They install on Brose and Fazua motors and a few other brand motors with ISIS Spindles.
MAIN BOLT - The eCranks with ISIS Spline use our M24 alloy Main bolt/Self extractor.
Q- All eBike motors have different width spindles and this directly affects the Qfactor when the crank is installed. These are the Qfactors when you install this crank on these motors :