Instead of the typical pawl based cassette hub, the SEISMIC hub uses x2 coupled toothed ratchet rings, which are inside the hub and the driver. The two rings are pushed together with a very special design of spring, which allows the hub to transfer power in one direction, and “freewheel” in the other. In a nutshell, it’s a much stronger internal mechanism, which can’t fail even after years of heavy use. No more skipping, slipping or popping, you can really crank this thing as hard you want and it’s not going to fail. Even after years of heavy use, this hub was designed to keep going on and on.

Specifications:
- Material: 6061-T6 alloy hub-shell
- Axle: 14mm hollow bore, male axle, hardened heat-treated crmo
- Bearings: 3 high-quality bearing driver, high-performance durable bearings in hub shell
- Spokes: 36h
- Driver: durable and dependable 3 high-quality bearing driver with c-clip for longevity
- Revolutionary Cassette hub using the patented TCS internal system
- Low weight, low maintenance hub with super durable internals
- RSD or LSD available
- Allen key inner axle for easy maintenance
- Includes eclat Viper and Gong nylon-fibreglass hubguards
- NEW eclat Chromoly axle nuts