DISC BRAKE ADAPTER, MA90, FOR 140MM ROTOR

Product Information

If you're running an older frame with International Standard (IS) disc brake mounts but want to use modern post-mount calipers, the Shimano SM-MA90-R140-PS adapter is your solution. This adapter specifically allows you to fit a 74mm post-mount caliper to a 51mm IS rear frame mount, optimizing it for a 140mm disc rotor. It's an essential component for upgrading your braking system without needing a new frame.

Crafted from machined aluminum, this adapter is designed for light weight and rigidity, ensuring consistent braking performance. The thoughtful design includes alignment markings for straightforward installation and an anodized black finish for durability.

Features

• Converts 51mm IS rear frame mount to 74mm post mount
• Optimized for use with 140mm disc rotors
• Lightweight, machined aluminum construction
• Anodized black finish for corrosion resistance and aesthetics
• Includes stainless steel mounting bolts and safety wire for secure installation
• Compatible with all Shimano 74mm post-mount brake calipers

Specs

• Material: Aluminum
• Rotor Compatibility: 140mm (Rear)
• Mount Type: IS 51mm (Frame) to Post Mount 74mm (Caliper)