Onyx Classic Wheels

Onyx takes a fresh approach to the mountain bike rear hub, in an effort to eliminate drag and increase engagement. Instead of a traditional pawl engagement system, Onyx opts for a high-tech sprag clutch that is virtually drag-free when not engaged. When you put the power down, engagement is nearly instantaneous. And an added bonus: the hub is dead silent. All you'll hear on the trail is the sound of your tires gripping the trail, nothing else. *IMPORTANT COMPATIBILITY NOTE: This hub is NOT compatible with e*thirteen cassettes.*