About SwissStop Catalyst Race - Centre Lock - 140mm
12% lighter than Catalyst Pro Two-piece construction Brake ring dimensions are optimized for race pads 1.8 mm thickness Aluminum alloy spider provides increased
12% lighter than Catalyst Pro Two-piece construction Brake ring dimensions are optimized for race pads 1.8 mm thickness Aluminum alloy spider provides increased stiffness New spider design for improved aerodynamics Centerlock mount 140 and 160 mm are UCI approved