Shimano Deore SM-BB52 68/73mm BSA Hollowtech and 12 similar items

Shimano SM-BB52 Bottom Bracket ? Hollowtech II BSA 68/73mm Description: The Shimano SM-BB52 is a high-performance Hollowtech II bottom bracket designed for smooth rotation, maximum durability, and efficient power transfer. Engineered for mountain and trekking use, this bottom bracket ensures long-lasting performance under demanding conditions. It?s compatible with Shimano 24 mm spindle cranksets and fits standard English (BSA) threaded bottom-bracket shells. Key Features: Model: SM-BB52 Type: Hollowtech II External Bottom Bracket Threading: BSA (1.37? 24 TPI, English thread) Shell Width Compatibility: 68 mm / 73 mm Spindle Diameter: 24 mm (for all Hollowtech II cranks such as Deore, SLX, XT, etc.) Material: High-quality aluminum cups with durable sealed cartridge bearings Sealing: Advanced Shimano Labyrinth + contact sealing for improved water dirt resistance Weight: Approx. 90 g Color: Black Included in Package: Left and right bearing cups (with pre-installed bearings) Center sleeve 3 2.5 mm spacers (for adjusting 68 mm / 73 mm shell width) Inner O-rings Compatibility: Suitable for Shimano MTB / Trekking / Road Hollowtech II cranksets (e.g., FC-M6000, M7000, M8000, M5100, M6100, etc.) Works with frames using standard threaded BSA shells (not compatible with Press-Fit systems) Note: For a 68 mm shell, install two spacers on the drive side and one on the non-drive side. For a 73 mm shell, install one spacer on the drive side only. Always follow the official Shimano installation torque and grease recommendations. These are OEM Shimano Parts, Brand New, Never Installed on a Bike, Never Used in Any Way, just NOT in the Retail Packaging.