Sram Guide T Front disc brake BlackSRAM Guide T Disc Brake and Lever Front Hydraulic Post Mount Black A1. Guide T brings consistent performance and reliable stopping power thanks to a revised lever design and lightweight four piston caliper. Featuring SRAMs Directlink lever updated master cylinder and timing port closure all combined to provide a more positive braking system. Bleeding Edge drip free bleed port closure and adaptor to minimize fluid loss Heat Shield technology to reduce