Post to post brake mounts allow you to run your brakes with a different sized rotor. The model you need depends on what size post mounts your fork/frame has, and what size rotor you want to run.

Ultimate adaptors are XTR level and use a lighter alloy with more cutouts to save a couple of grams in weight.

F 160-180mm – R 140-160mm 160-180mm:

• +20mm increase
• Allows for 180mm rotors on 160mm post mounts.

F 180-203mm – R 180-203mm:

• +23mm increase
• Allows for a 203mm rotor on 180mm post mounts.

F 160-203mm – R 160-203mm:

• +43mm increase
• Allows for a 203mm rotor on 160mm post mounts.
• Fits via 4 bolts with the caliper offset

F 203-220mm: SM-MAF220P/PL

• +17mm increase
• Allows for a 220mm rotor on 203mm post mounts.

F 200-220mm: SM-MAF220P/PL2

• +20mm increase
• Allows for a 220mm rotor on 200mm post mounts.