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even in wet or muddy conditions
it’s designed to perform mile after mile without adding unnecessary weight to your setup
race-ready cockpit
they feature a lightweight construction
Lightweight composite body with steel tool bits
Shimano ST-R8170 Ultegra Di2 Lever with BR-R8170 Disc Brake Caliper electronics even in wet or muddyThe Shimano ST R8170 Di2 Lever with BR R8170 Disc Brake Caliper delivers refined control and performance for modern road riding. Featuring wireless Di2 electronic shifting, the ST R8170 lever offers crisp, precise gear changes with an ergonomic shape designed for comfort and responsiveness. Paired with the BR R8170 hydraulic disc brake caliper, it provides powerful, consistent braking in all conditions. Whether you're assembling a front or rear setup,