Bontrager Rapid Drive Rear Hub

The 108 refers to the number of engagement points within the hub mechanism. This high engagement count means that when you pedal, the hub engages almost instantly, providing immediate power transfer and a very responsive feel on technical terrain.

This hub is specifically designed for fat bikes with 197mm x 12mm thru-axle spacing. Before purchasing, verify your frame's dropout spacing to ensure it matches these dimensions, as fat bike standards can vary.

Yes, but you must select the correct freehub body version for your specific cassette. The hub is available in configurations for standard Shimano/SRAM HG cassettes or SRAM XD drivers, so choose the one that matches your current drivetrain.

This hub features a standard 6-bolt rotor mount. It is compatible with any 6-bolt disc brake rotor, which is the most common mounting standard for mountain and fat bike disc brakes.

Due to the Rapid Drive 108 mechanism, this hub produces a distinct, audible buzz when coasting. Many riders appreciate this sound as it provides clear feedback on the hub's engagement speed, though it is louder than some lower-engagement hubs.

Absolutely. With 32 spoke holes and a robust aluminum construction, it is an excellent choice for building a durable, high-performance fat bike wheelset capable of handling demanding riding conditions.