TRP Trail EVO HD-M843 Hydraulic Disc Brake. Features of the TRP Trail EVO HD-M843 Disc Brake. Details of the TRP Trail EVO HD-M843 Disc Brake. 1 pair TRP HD-M843 Brakes. 5mm thick hydraulic line. For a clean as well as safe installation provides, in addition to a folding clamp on the brake lever, a 1900mm long and.
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