Hayes Disc Brake Rear Adaptor 178mm Rotor I.S. w/ Quick Release Axle to 51mm

New (In Box) Hayes Disc Brake Rear Mount Adapter
- 178mm Rotor 51mm I.S. Mount
- Brake Caliper Mount: 74mm post
- For Rotor Diameter: Rear 178
- Caliper Type: 74mm Post Mount
- Frame/Fork Mount: 51mm IS Rear
- Rotor Size: 178mm
- Mfg Listed Weight: 24.0g
- Mounting hardware included
- BR3944
- 844171001059
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