Easton BB86 Press Fit Bottom Bracket Description: Bottom Brackets are an essential part of the bicycle that is often overlooked and forgotten, but Easton saw the BB as another opportunity for performance gains and improved efficiency. They developed a seal that achieves a very low level of drag while still retaining excellent protection qualities. Its thinner and low viscosity bearing grease with the correct fill level offers higher durability at high speeds. If you're running the best crankset on the market, you should have the performance BB to match. Features: Steel bearings Bearing seals have a very low level of drag while retaining excellent protection qualities and keep contaminants out Low viscosity grease and optimized fill percentage hits the perfect balance between durability and minimal friction Specifications: Frame Interface: BB86 Spindle Interface: 30mm Spindle Bottom Bracket Shell ID: 41 Shell Width: 86mm Color: Black Weight: 66g