Galfer Brake Adaptors MORE (braking) POWERSet up your brakes to run larger rotors for increased braking performance with Galfer's Brake Adaptors. They're available in a 20mm variant to allow you to run a 180mm rotor on a 160mm post mount. The 20mm variant is also commonly used to run the 203mm Galfer oversized rotor. The adaptor is also available in a 43mm variant to allow you to run a 203mm rotor on a 160mm post mount. The 43mm variant also works great for installing a 223mm Galfer oversized rotor. Features Available in 20mm and 40mm variants Compatible with 160mm post mount forks Compatible with 6-bolt and centerlock rotors20mm variant for 160 to 180mm rotor setups43mm variant for 160 - 203mm rotor setups Weight: 22g (20mm), 21g (43mm) | Galfer | Brake Adaptors +20Mm Adapter, 22 Grams