Brakes
Shimano Ultegra BR-R8100 Brake Caliper Grey, Rear
Rear Caliper
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
Retailer offers
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Technical data
Specifications
- Maximum tire width
- 28 mm
- Supported brake control interfaces
- Short Pull Cable
- Supported positions
- Rear
- Brake mount
- Rim Caliper
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
- Sep 1, 2026
- Compatibility review
- Reviewed Sep 1, 2026
Approved technical sources
- Shimano brake specification handbook
- productinfo.shimano.com/pdfs/product/latest/Specifications_en.pdfManufacturerSource checked Sep 1, 2026Evidence reviewed Sep 1, 2026
- competitive-cyclist exact Shimano package
- competitivecyclist.g39l.net/c/7664279/1965080/5416RetailerSource checked Sep 1, 2026Evidence reviewed Sep 1, 2026