Token&';s Press-fit bottom bracket uses the best materials such as a shell that is made from a combination of fiber and plastic. Precisely machined to allow an exact fit into the frame and eliminate squeaks. It also provides a stable platform for the bearings and gives them a longer lifespan Premium bearings with high carbon steel balls Token&';s X-Seal technology keeps bearing protected from dirt and water, with very little friction for a free-spinning bearing Spindle Interface Type: Shimano Hollowtech II Bottom Bracket Shell I.D.: 46 BB Shell Width (mm): 86, 89.5, 92 BB/Frame Interface: 386 EVO, 392 EVO Weight: 110g. Color: Black