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The Shimano Bottom Bracket BSA 73/68mm is a reliable, threaded bottom bracket designed for frames with standard BSA (English) bottom bracket shells. Compatible with 68mm and 73mm shell widths, it is a popular choice for mountain bikes, hybrids and many touring or urban bikes that use this classic standard. Shimano’s proven bearing technology helps deliver smooth, efficient pedaling and long-lasting performance, even when exposed to wet, muddy or dusty riding conditions.
This bottom bracket is engineered to work seamlessly with matching Shimano cranksets, ensuring precise fit and easy installation for home mechanics and professional workshops alike. The threaded BSA design helps reduce creaks and unwanted movement, while sealed bearings help keep out contaminants and minimize maintenance needs. Whether you are refreshing a worn drivetrain, building up a new frame, or upgrading from an older unit, the Shimano Bottom Bracket BSA 73/68mm offers dependable performance, solid value and the confidence that comes with one of cycling’s most trusted component brands.
