Prime SR1D Rear Hub (Disc Brake)

Durable, Dependable & Easy to Maintain

Specifically designed for the demands of modern road cycling, the Prime SR1D Rear Hub provides reliable performance, using a new star ratchet drive system for quicker engagement and increased durability so you can enjoy smoother performance for longer.

New Star Ratchet System Hub

The SR1D Rear Hub contains our new Dual Sprung Star Ratchet Hub Engagement System, which has been developed to bring the following performance benefits to the rider:

• Ultra-lightweight hub shell for increased stiffness and power transfer
• Dual sprung hub mechanism for next level engagement
• 36 points of engagement for instant pick up and power transfer
• Heat treated carbon steel ratchet rings designed for optimum wear life
• Faster pick up that accelerates quicker ran a conventional hub
• Easily serviceable with no odd size bearings

Built for maximum durability, this hub features a super-lightweight CNC machined hub shell paired with fast, efficient Japanese stainless steel bearings and an incorporated notch in the newly developed end caps with tool-free freehub removal that simplifies disassembly and makes maintenance even easier.

Features:

• Material: Superlight forged & CNC machined 7075 alloy hub body
• Spoke Type: Straight pull
• Bearings: Premium Japanese sealed cartridge bearings (Hub Shell: 2x 6902 | Freehub: 2x 6802)
• Axle: 142mm x 12mm
• Hole Count: 24
• Points of Engagement: 36T star ratchet system (54T upgrade available separately)
• Freehub Body Option: XDR freehub body available for purchase separately
• Weight: TBC