Brakes
Shimano CUES BR-U6030 Rear Caliper
Rear flat-mount caliper
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
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Technical data
Specifications
- Supported brake control interfaces
- Hydraulic Mineral Oil
- Compatible brake hoses
- Sm-Bh59-Jk-Ssr, Sm-Bh90-J-Ssr, Sm-Bh90-Jk-Ssr
- Compatible rotor models
- Sm-Rt54, Sm-Rt30
- Brake pad materials
- Resin
- Brake pistons
- 2
- Supported positions
- Rear
- Brake mount
- Flat Mount
- Supported rotor diameters
- 160 mm, 180 mm
- Material
- Aluminum
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 26, 2026
- Compatibility review
- Reviewed Oct 26, 2026
Approved technical sources
- Exact U6030 caliper material
- productinfo.shimano.com/en/product/BR-U6030-RManufacturerSource checked Oct 26, 2026Evidence reviewed Oct 26, 2026
- Shimano CUES hydraulic disc-brake specification
- productinfo.shimano.com/en/spec/lifestyle-active-brake-hydraulic-disc-brakeManufacturerSource checked Jul 28, 2026Evidence reviewed Oct 26, 2026
- Shimano brake caliper and rotor compatibility C-461
- productinfo.shimano.com/en/compatibility/C-461ManufacturerSource checked Jul 28, 2026Evidence reviewed Oct 26, 2026
- Shimano current component catalog package identity
- set.shimano.co.jp/bc_catalog/PDF-2/bg.pdfManufacturerSource checked Jul 28, 2026Evidence reviewed Oct 26, 2026
- Shimano hydraulic systems compatibility C-500
- productinfo.shimano.com/en/compatibility/C-500ManufacturerSource checked Jul 28, 2026Evidence reviewed Oct 26, 2026