Application: 1 1/8" 4545 Headsets 45 x 45 degree ACB ID: 30.5 mm, OD: 41.8 mm, W: 7.88 mm Features single rubber seal (1RS), rolled over outer race & recessed inner chamfer Exact replacement for Campy 4545 1 1/8" bearings Learn More
Application: 1 1/8" 4545 Headsets 45 x 45 degree ACB ID: 30.1 mm, OD: 41.8 mm Two rubber seals (2RS) This will fit most Campy applications but has a slightly smaller ID than the Campy 4545 1 1/8" bearings Learn More