The Shimano SM-MA-F203P/PA adapter allows the installation of Shimano Postmount caliper on forks and frames with Postmount 160 mm direct style in conjunction with 203 mm rotors.
Product features - Shimano SM-MA-F203P/PA
Fork-/Frame type: Postmount 160mm (PM6)
Caliper type: Postmount
Rotor diameter: 203mm
Material
Adapter: Aluminium
Screws: Steel