Magura QM40 Brake Adaptor - 160mm to 180mm Rotor (+20mm) Model=GS3 Grips or with a heavier mass

or with a heavier mass to slow down

18 preassembled pins in virtual concavity for ultimate grip

Professional quality chain uses SRAM's strongest pin to side plate joining method

Height adjustable from 39" to 57" (990 mm–1450 mm)

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Magura QM40 Brake Adaptor - 160mm to 180mm Rotor (+20mm) Model=GS3 Grips or with a heavier massMagura QM40 Adaptor for a 180mm Rotor on 160mm Post Mounts. Disc brake adaptors designed to mate Magura disc brakes with a variety of frame mounts and rotor sizes. Includes hardware to mount adaptor to frame TECH SPECS Brake Caliper Type Post Mount Mount Rotor Size 160 Post 180 Rotor