CYC Motor Heavy-Duty Drivetrain Kit (148mm)

Complete 5-speed rear drivetrain upgrade kit engineered for high-power CYC mid-drive builds. Bundles an AlexRims e-Bike hub (12x148mm Boost thru-axle, Shimano HG freehub, 32H, 6-bolt disc), a 15-30T Chromoly/7075 cassette, Microshift Advent Trail Pro shifter, Microshift RD-M6195S short-cage clutch derailleur, and a KMC e9 Turbo EPT anti-rust chain. Designed to handle the torque output of the CYC X1 Pro Gen 4 and compatible with any e-bike using a Shimano HG freehub.