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The PRO Seatpost XCR OS Clamps are designed for riders who demand secure, precise saddle positioning from their seatpost setup. Built around the popular oversized (OS) rail standard, these clamps provide a firm, slip-free hold on your saddle rails, helping you maintain your preferred saddle angle and fore–aft position even on rough terrain. Whether you are refreshing an older PRO XCR seatpost or replacing worn hardware, these clamps restore confidence and stability to one of the most critical contact points on your bike.
Engineered for durability and reliability, the PRO Seatpost XCR OS Clamps use a robust, user-friendly design that makes installation and adjustment straightforward with standard workshop tools. The secure interface helps distribute clamping forces evenly across the saddle rails, reducing the risk of damage while keeping creaks and unwanted movement at bay. Ideal for cross-country, gravel, and everyday riding, these clamps are a smart, cost-effective way to extend the life of your existing seatpost and fine-tune your bike fit for comfort and performance.
