Durable, practical construction Made of durable material for long service life and reliable everyday use. The robust build withstands road and trail conditions while delivering consistent performance. Broad compatibility English-threaded bottom bracket compatible with Shimano-SRAM, FSA, and Race Face cranks. Fits common shell types including BB68/73, BB51, BB52, and BB70, making it suitable for a wide range of bikes and cranksets. Improved sealing for longer life Nylon seals located outside the bearings protect against dirt, dust, and water. Better sealing reduces wear and keeps the bearings running smoothly for a longer service interval. Flexible axle options Designed to accept multiple axle options to accommodate different crank configurations, providing installation flexibility and easier upgrades. Key benefits — why you need it Reduces drivetrain noise and friction for a smoother pedaling feel. Protects bearings from contaminants so maintenance intervals are extended. Fits many common frames and crank brands, minimizing compatibility headaches when replacing a worn unit. Practical applications / use scenarios Replace a worn bottom bracket on a road bike with a BB68/73 shell to restore smooth pedaling. Upgrade a commuter bike that uses Shimano or SRAM cranks to reduce friction and improve efficiency. Service a mountain or gravel bike using FSA or Race Face cranks where robust sealing and wide compatibility are required. Technical highlights English (BSA) threaded installation for secure fitment Compatible with BB68/73, BB51, BB52, BB70 shell standards Nylon external seals for enhanced contamination protection Built for compatibility with Shimano-SRAM, FSA, and Race Face systems This bottom bracket delivers reliable performance, broad compatibility, and improved bearing protection—practical features that simplify maintenance and keep your bike running smoothly.