Shimano SM-MA-F180P/P2 is a front disc brake mount adapter that lets a Post Mount caliper run a 180mm rotor on a 160mm native Post Mount fork or frame. It adds a 20mm offset to position the caliper correctly for the larger rotor and includes two mounting bolts.

Fits

  • Front Post Mount calipers on 160mm-native Post Mount forks/frames, upsizing to a 180mm rotor
  • Caliper side: Post Mount; Frame/fork side: Post Mount
Covered by Shimano's spare-parts warranty against manufacturing defects. For any warranty claim or support, return the item to Tune Cycles and we will handle it for you.
  • Front Post Mount (caliper) to Post Mount (frame/fork) disc brake adapter
  • Converts 160mm native Post Mount to a 180mm rotor
  • 20mm offset for correct caliper positioning
  • Two mounting bolts included
Part numberSM-MA-F180P/P2 (ESMMAF180PP2A)
TypeDisc brake mount adapter, front
Caliper mountPost Mount
Frame/fork mountPost Mount (160mm native)
Rotor size enabled180mm
Offset20mm
IncludedAdapter + 2 mounting bolts
SKU SHM-ESMMAF180PP2A
Barcode # 4550170506124
Brand Shimano