Shimano SM-MA90 Disc Brake Adapter

Shimano XTR SM-MA90 Adaptor IS2000 Mount to Postmount Brake

Adaptor to use a a Postmount brake in combination with a IS2000 Mount. The included wire is used to fix the screw. The adapter can be used as follows: 

Compatibility

Fork with 160 mm mount - SM-MA-F160P/S2 for the use of a 160 mm brake disc 

Frame with 140 mm mount:

SM-MA90-R160P/S for the use of a 160 mm brake disc

SM-MA90-R180P/S for the use of a 180 mm brake disc

SM-MA90-R203P/S for the use of a 203 mm brake disc 

Designed for BR-M985 and BR-M988, but can be used on all Shimano 74mm-caliper brakes.

Shimano XTR SM-MA90 Adaptor Postmount to Postmount Brake

Adaptor to use a larger brake disc in combination with a Postmount fork or frame and a Postmount brake. The included washers are surface-treated (silver) and will not rust. The wire is used to fix the screw. The adapter can be used as follows: 

Compatibility

Fork with 140 mm mount - SM-MA90-F180P/P for the use of a 160mm brake disc 

Fork with 160 mm mount -  SM-MA90-F180P/P for the use of a 180mm brake disc 

Frame with 140 mm mount - SM-MA90-F180P/P for the use of a 160mm brake disc 

Frame with 180 mm mount - SM-MA90-F203P/P for the use of a 203 mm brake disc 

Note: To use a 203 mm disc at a 160 mm at the fork, you need the adapter SM-MA-F203P/PA (Bike24 ID: SHI103313) 

Designed for BR-M985 and BR-M988, but can be used on all Shimano 74mm-caliper brakes.

Specifications

Shimano XTR SM-MA90 Adaptor IS2000 Mount to Postmount Brake

Material: Aluminum

Weight: approx. 12g (Adapter without fixing material

Brake caliper: Postmount

Shimano XTR SM-MA90 Adaptor Postmount to Postmount Brake

Material: Aluminum

Weight: approx. 12g (SM-MA90-F180P/P without fixing material)

Brake caliper: Postmount