While many bearing manufacturers will offer you standard Cr-Mo or steel headsets for your carbon road bike, steel bike or full suspension mountain bike. We offer entry-level headset bearings made entirely of 440C stainless steel. They are always designed with the largest possible balls and double lip seals in a micro-groove for ultimate protection against water and the outside elements. They are 90% filled with high-pressure waterproof grease, so you never have to guess if there is grease inside. Dimensions: 40 x 52 x 6.5 (36 x 45 degrees), Weight: 0.0440924524 pounds, Manufacturer: Enduro