The Track Pack for Stacyc e-bikes is a complete fastener kit designed for models 12e, 16e, 18e & 20E. Includes hardware for motor/planetary gearbox, mount bolts & screws, brake assembly and cable holder fasteners, stem bolts, motor fairing screws, seat clamp bolts, foot rest bolts, axle nuts & washers, sprocket bolt & washer, handlebar clamp bolts, and more! This Bolt kit for Stacyc e-bikes has all the nuts, bolts, screws, washers, and fasteners needed to make repairs and perform regular maintenance in same sizes, styles, and finishes found on factory bikes.