Jenson USANew · Checked Nov 4, 2026, 3:23 AM
$19.99Out of stockVisit store
Bottom brackets
Shimano BB-RS501 Bottom Bracket
BSA 68 mm
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
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Technical data
Specifications
- Weight
- 93 g
- Supported BB shells
- BSA-68
- Supported crank spindles
- 24mm
- Front drivetrain groups
- Shimano C455 Sora 2x9, Shimano C455 Tiagra 2x10, Shimano C455 Cues Dropbar 2x11, Shimano C455 Grx 2x12, Shimano C455 105 Mechanical 2x12, Shimano C455 Tiagra R4000 2x11
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
- Oct 16, 2026
- Compatibility review
- Reviewed Oct 16, 2026
Approved technical sources
- Exact69926 FC-R4000 + BB-RS501 + CN-LG500; approved immutableShimanoC455 mapping 6036aebe798af4869f59767b1091ecb1c22a252611de870c4c26877de02cd419
- api.trekbikes.com/occ/v2/us/products/69926/specificationsManufacturerSource checked Oct 16, 2026Evidence reviewed Oct 16, 2026
- Shimano current component catalog package identity
- set.shimano.co.jp/bc_catalog/PDF-2/bg.pdfManufacturerSource checked Jul 28, 2026Evidence reviewed Oct 16, 2026
- Shimano front drivetrain compatibility C-455
- productinfo.shimano.com/en/compatibility/C-455ManufacturerSource checked Jul 28, 2026Evidence reviewed Oct 16, 2026
- Shimano package-code and label reference
- si.shimano.com/en/pdfs/sm/CY25_GENUINE_PARTS/CY25_GENUINE_PARTS_O.pdfManufacturerSource checked Jul 28, 2026Evidence reviewed Jul 28, 2026
- si.shimano.com/pdfs/compliance/pmi/Packaging%20Labelling%20Information_Italy_BC_20231016.pdfManufacturerSource checked Jul 28, 2026Evidence reviewed Jul 28, 2026
- Shimano road HOLLOWTECH II bottom bracket specification
- productinfo.shimano.com/en/spec/road-bottom-bracket-hollowtech-iiManufacturerSource checked Jul 28, 2026Evidence reviewed Oct 16, 2026
- Y's Road BB-RS501 exact Shimano package identity
- online.ysroad.co.jp/shop/g/g4550170640613RetailerSource checked Jul 28, 2026Evidence reviewed Jul 28, 2026