SRAM - Avid IS Frame Or Fork To Post Caliper Brake Mount - F 160-180mm - R 140-160mm 160-180mm - Mount - 20mm Increase YGroup_7033485590573 The braking surface area stays

The braking surface area stays consistent regardless of position on the rotor

Torx Tool: T-25

a power bar

dusty or wet conditions

the waterproof inner bag will enable you to keep the contents completely dry and its built in air release button allows you to draw air out of the bag to ensure it is always as compact as can be

SRAM - Avid IS Frame Or Fork To Post Caliper Brake Mount - F 160-180mm - R 140-160mm 160-180mm - Mount - 20mm Increase YGroup_7033485590573 The braking surface area staysGenuine Avid brake mount for IS (International Standard) frames and forks. F 160 180mm R 140 160mm 160 180mm: Accommodates 180mm rotors on fork 160mm on frame. Includes required hardware F 160 200mm R 140 180mm 160 200mm: 40mm adaptor. Adapts post mount forks to run a 200mm brake rotor or 180mm brake rotor on the frame. R 140 200mm: 60mm adaptor. Adapts your frame to be able to run a 200mm rear brake rotor.