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The Shimano Bottom Bracket BSA 115mm/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 many road, trekking, and city frames that use square-taper or compatible cranksets. Shimano’s proven bearing quality helps reduce friction and improve durability, so your cranks spin freely and consistently, ride after ride.
This bottom bracket is ideal for riders refreshing an older bike or completing a new build with a dependable, easy-to-service solution. The 115 mm axle length provides the correct chainline for many common drivetrains, helping to ensure precise shifting and reduced wear on chainrings and cogs. Thanks to its sealed cartridge design, it offers good protection against dirt and moisture, keeping maintenance needs low. Whether you commute daily, tour on weekends, or simply enjoy relaxed rides, this Shimano BSA bottom bracket delivers solid performance and long-lasting value.
