Keep your Shimano drivetrain running smoothly with the Shimano BB-RS501 HOLLOWTECH II Bottom Bracket. Designed for compatible Shimano 2-piece cranksets, this threaded bottom bracket provides a reliable interface between the crankset and bicycle frame.
The BB-RS501 features an aluminum adapter with an anodized finish and is compatible with 68mm and 70mm threaded bottom bracket shells. With an average weight of approximately 93g, it offers a practical replacement or upgrade option for compatible road, gravel and hybrid bicycle builds.
Shimano lists the BB-RS501 as a recommended threaded bottom bracket for a range of compatible Shimano cranksets, including selected road and GRX applications. Always check the crankset and frame specifications before installation.
Key Features
- Genuine Shimano HOLLOWTECH II bottom bracket
- Threaded bottom bracket design
- Aluminum adapter construction
- Anodized adapter finish
- Compatible with 68mm and 70mm threaded BB shells
- Approx. 93g average weight
- Designed for compatible Shimano 2-piece cranksets
- Suitable for road, gravel and hybrid applications
Compatibility
The Shimano BB-RS501 is designed for compatible Shimano HOLLOWTECH II crankset systems using a 68mm or 70mm threaded bottom bracket shell. Shimano's product documentation lists BB-RS501 as the recommended threaded bottom bracket for various compatible Shimano cranksets.
Important: Check your bicycle's bottom bracket shell width and crankset compatibility before purchasing or installation.
Why Choose Shimano BB-RS501?
The Shimano BB-RS501 offers a dependable threaded bottom bracket solution for compatible Shimano cranksets. Its aluminum construction, anodized finish and HOLLOWTECH II design make it a practical choice for replacement and maintenance of compatible bicycle drivetrains.