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Beneath the surface
designed for 2016> SRAM Guide Ultimate R with S4 Caliper brake systems
it delivers exceptional strength while keeping weight to a minimum
Made from premium Gr5 6Al-4V titanium
Fits: SRAM Red 22 B1 HRD disc brake systems
Shimano GRX Tiagra BR-4770 Compatible Finned Inserts Compound:Race-Matrix Beneath the surfaceNote: Must not be used without the Uberbike finned backplate. The Uberbike Finned Disc Brake Pad Inserts are designed for use with Shimano GRX BR 810, BR RX400, Tiagra BR 4770, K03 K04) disc brake systems. Engineered for riders seeking consistent control and smooth braking performance, these inserts fit the Uberbike finned backplate and provide a simple, cost effective way to refresh or tune your braking setup. Race Matrix Compound: Take your braking