This Shimano FH-TC600 Freehub Body is an HG 8-11 speed compatible freehub body for the FH-TC600 E-Bike compatible hub. Works with Shimano HG 8-10 Speed cassettes (and 11 speed mountain bike cassettes).
The Shimano FH-TC500 Freehub Body is a Shimano Microspline 12 speed compatible freehub body for select Shimano hubs. Shimano Microspline 12 speed compatible.
The Shimano CJ-S7000-8 Alfine Cassette Joint Unit for Belt Drive System is a necessary piece for installing a belt drive onto an 8-speed Shimano Alfine internally geared hub. This joint unit supports the shifter cable and also has a lockring to secure the belt drive sprocket and other external components to the hub.