This North Shore Billet disc brake adapter converts a 200mm+ post mount interface to run a 220mm+ rotor, adding 20mm of spacing for larger rotor setups. It is CNC machined from 6061 T6511 aluminum and follows the Post Mount standard, so it can be fitted to either the front or rear brake position on a frame or fork.
The adapter works with rotors and calipers from brands such as Shimano, SRAM, Hope, Hayes, and Formula. Mounting bolts are sold separately; for larger calipers, including Magura MT5/MT7, Hope Tech V4, Hayes Dominion A4, and SRAM Maven, a low profile button head bolt kit helps achieve proper fitment and clearance at the mount.
Quick Facts
| Feature |
Specification |
| Material |
CNC machined 6061 T6511 aluminum |
| Brake Mount Standard |
Post Mount, front or rear use |
| Adapter Interface Size |
200mm+ post mount to 220mm+ rotor |
| Spacing Added |
+20mm relative to stock interface |
| Caliper Brand Compatibility |
Shimano, SRAM, Hope, Hayes, Formula |