The Shimano SM-MA90-F180P/P lightweight adapter allows the installation of Shimano Postmount caliper on forks and frames with Postmount 160 mm direct style in conjunction with 180 mm rotors.
Product features - Shimano SM-MA90-F180P/P

Fork-/Frame type: Postmount 160mm (PM6)
Caliper type: Postmount
Rotor diameter: 180mm

Material

Adapter: Aluminium
Screws: Stainless steel

Weight

approx. 32g with screws