Shimano BB-RS501
The Shimano BB-RS501 is a Tiagra-series Hollowtech II bottom bracket with steel bearings in a British 68mm BSA shell for 24mm spindle cranks. It's a straightforward upgrade for entry-level and mid-range road bikes.
- Threaded Type HOLLOWTECH II Bottom Bracket, Tiagra series
- Aluminum, for BSA threaded 68/70mm bottom bracket shell
- Compatible with all road Hollowtech II cranks
- For 24mm spindle
Pairs well with
Shimano BB-RS501
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