R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the responsiveness of the RingDrive engagement system when you put the power down.

• R45D hubs combine low-drag 45-tooth RingDrive system, a lightweight hub body, and made-in-house bearings. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the responsiveness of the RingDrive engagement system when you put the power down.
• Easily serviceable and completely re-buildable with the R45 Hub Service Tool
• Patented RingDrive system with 45 simultaneously engaged points of contact for virtually drag free engagement