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R45 Rear Hub 20h Black

When we set out to design our R45 hub we had over 30 years of bearing experience and 20 years of building hubs under our belts.

The R45 is the culmination of that experience; we focused on creating a lightweight road racing hub that utilized hallmarks of Chris King components: precision, performance, and quality.

Our R45 rear hub combines a redesigned RingDrive™ system with 45 teeth for lower drag and near instant engagement with a lightweight hub body and our legendary made-in-house bearings. Engineered, manufactured and assembled in Portland, Oregon USA 5-year built-to-last warranty

Patented RingDrive™ system with 45 simultaneously engaged points of contact for virtually drag free engagement

Legendary made-in-house bearings Easily serviceable and completely re-buildable with our R45 Hub Service Tool

Available in 9 beautifully anodized colors

Our lightweight solution for top caliber racing Shimano®/ SRAM® or Campagnolo® compatible options

Ceramic bearing upgrade available

Delivery & Returns


We dispatch items Monday to Friday. Please order by 4pm for your order to be dispatched same-day. We offer a next-day delivery service including Saturday delivery (extra charge). Please refer to our full Delivery Information page for further details.


We provide an excellent no-quibble returuns policy which our customers love. Should you need to return an item, we make it easy for you and the process is quick. Please refer to our full Returns Policy for further details.