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feather-light lever action that reduces hand fatigue on long runs
helping support longer rotor life
you can swap them to reverse the configuration
Ideal for riders who want dependable all-weather control and long-lasting durability
Universal Fitment Standard: Designed for compatibility with modern MTB and e-MTB frames that use the M12 x 1
Sumart UBB-40 Universal Brake Bleed Block & Piston Spreader for 4-Piston Calipers Disc Hose and Parts feather-light lever action that reducesSumart UBB 40 Universal Bleed Block & Piston Spreader Protect pistons, set the correct pad gap, and make 4 piston brake bleeding cleaner and more consistent. The Sumart UBB 40 Universal Bleed Block is designed to simplify hydraulic brake maintenance on 4 piston calipers. Built to help hold pistons in the correct position during bleeding and service, the UBB 40 protects delicate pistons, supports proper pad spacing, and helps mechanics achieve a more