SHIMANO | SHIMANO Original Disc Brake Adapter PM A Pillar Disc Brake Bracket For 180mm 203mm Rotor RT86 RT81 RT56 F180P/P2 F203P/PM

This is the Shimano SM-MA Front 180mm P/P Disc Brake Mount Adapter.Features: For 74mm caliper on 74mm fork with 180mm rotorMaterial: aluminumBrake caliper:PostmountThe adapter can be used as follows:140 mm fork mount:SM-MA-F180P/P2 - for using a 160 mm brake disc160 mm fork mount:SM-MA-F180P/P2 - for using a 180 mm brake discSM-MA-F203P/P2 - for using a 203 mm brake disc140 mm frame mount:SM-MA-F180P/P2 - for using a 160 mm brake disc160 mm frame mount:SM-MA-F180P/P2 - for using a 180 mm brake discframe with 180 mm mount:SM-MA-F203P/P2 for the use of a 203 mm brake disc Note: For using a 203 mm brake disc at an 180 mm frame mount, the separately sold "Shimano XTR SM-MA90 Adapter" (SM-MA90-F203P/P) is required.The offered adapters are not compatible to the following brake calipers:BR-M965BR-M755HOPE Tech 3 E4 caliper