Brakes
Shimano Shimano BR-R451 Rim Brake
Rear · silver
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 30, 2026
- Compatibility review
- Reviewed Jul 30, 2026
Approved technical sources
- Shimano 2026 current product catalog and specification tablesManufacturerSource checked Jul 30, 2026Evidence reviewed Jul 30, 2026
Technical data
Specifications
- Maximum tire width
- 32 mm
- Supported brake control interfaces
- Short Pull Cable
- Brake pad materials
- Road Cartridge
- Supported positions
- Rear
- Brake mount
- Rim Caliper