The Shimano Advanced Disc Brake Post Mount Adaptor 180mm allows you to use a 220mm disc rotor on a 160mm post mounted calliper.
Features
Adapts from Post Mount brake calliper to Post Mount frame/fork (bolt spacing 74 mm)
Can be mounted at the front and rear
Specifications
| Material | Aluminium | 
|---|---|
| Disc Diameter | 220mm | 
| Caliper Diameter | 180mm, 200mm, 203mm | 
| Weight | approx 34g | 
| Mount Type | Post |