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The Shimano Bottom Bracket BSA 113mm/68mm is a reliable, threaded bottom bracket designed for smooth, efficient power transfer on a wide range of bikes. Using the classic BSA (English) thread standard and a 68 mm shell width, it fits the most common frame type found on road, urban, trekking, and many mountain bikes. The 113 mm axle length is a popular choice for double and triple cranksets, helping you achieve a stable chainline and consistent shifting performance.
Built with Shimano’s proven bearing technology, this bottom bracket is engineered for durability and low maintenance. Sealed cartridge bearings help keep out water and dirt, reducing wear and extending service life, even in wet or gritty riding conditions. Whether you are refreshing an older bike, completing a drivetrain upgrade, or building a dependable commuter, this BSA bottom bracket offers a solid, creak-free interface between your frame and crankset. Easy to install with standard tools and compatible with many square-taper style cranks, it’s a practical, cost-effective component that restores smooth pedaling and dependable performance.
