Rounded edges distinguish the CenterLine XR from SRAM's standard CenterLine rotors. The machining process removes the sharp outer edge that can catch on clothing during wheel changes or bike handling, and it eliminates the potential for cuts when working on your bike. Same steel construction and braking surface as the standard version, just with that finished edge treatment that makes a noticeable difference when you're grabbing the wheel or loading the bike into a car.

The XR uses SRAM's two-piece construction with an aluminum carrier spider bonded to the steel braking surface. This design sheds weight compared to a one-piece steel rotor while improving heat dissipation during extended descents. The carrier spider transfers braking forces to the hub interface while allowing the steel ring to expand slightly under heat without warping. Available in 140mm and 160mm diameters to match your frame and fork specifications, with Center Lock mounting for Shimano-style splined hubs.

Rotor thickness measures 1.85mm, which is the standard dimension for SRAM and most aftermarket brake pads. The braking surface uses a directional pattern that channels water and debris away from the pad contact area. If you're replacing rotors on a bike with SRAM hydraulic brakes, these are the direct replacement option. They also work with Shimano hydraulic calipers and any other system designed for standard rotor thickness.... Read More