Hope E-Bike Crankset - Standard Offset - Black - Kurbel: Hope E-Bike Crankset - Standard Offset - This crank model is most suitable for Bosch gen 2/4 systems and Yamaha PW-X systems (not compatible with Bosch gen 3 BNI spindle interface). Designed for maximum ground clearance; Self-extracting system for easy fitting and removal; Available in 155mm and 165mm length; Optimised Q-factor for compatibility with most frame/motor combinations; Arms available in Black, Blue, Red, Silver, Purple and Orange; Proudly Designed, Tested and Manufactured in Barnoldswick, UK; Weight: From 472g; Forged and CNC machined 7150 series aluminium alloy crank arms; **Please Note**: Compatible with motor systems using an ISIS spline axle/crank arm interface only.