🔧 Tektro Rear 180mm Post Mount Adaptor for Disc Brakes - Black: A Versatile Solution for Enhanced Brake Performance Review

This bracket was a simple upgrade to install a 203 rotor on a SURLY Rigid ECR fork. My Spyre Spyke front caliper did not require shims.

Seemed to work fine, although the "this end up" arrow would be useful. I ended up returning mine because the update didn't work on my bike, but that's not the product's fault.

As the title says, I bought the mount new, it connects to the IS mount (international standard/51mm) and increases the height of the rotor mount. For the IS rear mount, it allows your bike 180mm rotors and for the front mount (if you have one) a 203mm rotor.