The TRP S05E Disc Brake Rotor, designed for World Cup Downhill racing, offers a 10% improved deceleration rate and enhanced heat dissipation with a new hole pattern. Its increased surface area ensures better temperature stability on long descents. Laser-cut for precision, it provides exceptional braking control and bite. Engineered for downhill performance, the S05E rotor delivers race-proven results with superior bed-in performance and optimized braking power. Specs: Sizes: 203mm and 220mm Weight: 203mm- 204 g, 220mm- 240 g Bolts: Includes 6- T25 Torx Head Rotor Bolts Thickness: 2.3mm Thick (Minimum Thickness: 1.9mm) Treatments: Rust Block Compatibility: TRP RS05E 2.3mm rotors are compatible with the following: Hub: 6-bolt hubs