This is a Shimano Disc Brake Adapter for I.S. Frames to I.S. Calipers to run 180mm Rotor on the rear.
- For 51mm caliper on 51mm frame using 180mm rotor
- Includes mounting hardware
Brake Caliper Mount Type: Post Mount (74mm)
Mount | Rotor Size: Rear IS | 180mm Rotor
Caliper Type: 51mm I.S