203mm IS Disc Brake Caliper Adapter - Black | Compatible with Mountain Bikes & Road Bikes | Perfect for Upgrading Your Bike's Braking System

Paul Component Engineering Disc Adaptors are made in +0, +20 and +40 sizes. +0 are for 160 front and 140 rear rotors and IS mounts. No adaptors are needed for 160 front and 140 rear post mounts.Specifications:Brake Caliper Type: Post Mount Mount | Rotor Size: 180 Post | 200 Rotor