The Paul Components Mount/I.S. Klamper Disc Brake is the one. After 3 years of development Paul brought you a disc brake that uses the tried and true ball bearing system, just more refined. Once the system was sorted out the minute details are what make this brake a step up. Bigger ball bearings for smoothness and increased pad travel, hardened steel where the balls contact the ramp, and hardened steel pins instead of a plastic washer to locate the pad actuator. 

• Heat treated 6061 aluminum 
• Anodized finish
• Interchangeable lever arms based on lever application (Long pull, short pull, or campy)
• Include Kool Stop Avid Exlixer Sram Metal Compound pads (#KS-D296S) 
• Weight: 211g