Bottom brackets
Shimano Shimano BB-MT801 Bottom Bracket
BSA 68 / 73 mm
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
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Catalog trust
Evidence and freshness
Technical-source dates and retailer offer checks are separate. A retailer check does not validate compatibility.
Report a correction- Technical review
- Jul 29, 2026
- Compatibility review
- Reviewed Jul 29, 2026
Approved technical sources
- Shimano MTB bottom bracket specificationsManufacturerSource checked Jul 29, 2026Evidence reviewed Jul 29, 2026
- Shimano current lifestyle component ordering catalogManufacturerSource checked Jul 29, 2026Evidence reviewed Jul 29, 2026
Technical data
Specifications
- Supported BB shells
- BSA-68, BSA-73
- Supported crank spindles
- 24mm
- Front drivetrain groups
- Shimano Cues U8000 Flatbar 2x11