Ultegra SM-BBR60

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The Shimano SM‑BBR60 is a lightweight, smooth‑running Hollowtech II bottom bracket designed for Ultegra and 105‑level road drivetrains. Its compact cup design reduces weight while maintaining excellent bearing durability. Compatible with all Shimano road Hollowtech II 24 mm spindle cranks. Hollowtech II road bottom bracket Compact, low‑friction design Durable steel bearings For 24 mm spindle cranks Ultegra/105 performance level Available in BSA 68 mm and Italian 70 mm thread standards Show more