Shimano Disc Brake Caliper Fixing Bolt for Flat-Mount Frame Adaptor Description:

The Shimano Disc Brake Caliper Fixing Bolt for Flat-Mount Frame Adaptor is designed to attach a SM-MA-R140P/D or SM-MA-R160P/D adaptor to a bicycle frame. These adaptors allow for a 74mm post mount disc brake caliper to be mounted to a flat mount brake mount on the rear triangle of a bicycle frame.

Features:

• 26.8mm bolt length is optimized for a 20mm thick chainstay
• Bolts are sold individually, and they include a washer as well as a dab of thread locker to help keep the bolt in place when installed
• Disc Brake Caliper Adapters sold separately

This product was added to our catalog on September 17, 2025