SHIMANO Flat Mount Disc Brake Adapter: Enhancing Performance with a Flawless Fit Review

I'll have to check with the fork manufacturer but it looks like my fork needs a 180mm rotor, not the 160mm disc I was thinking. This was a change when it was added.

This allowed me to install my Shimano grx caliper on my specialized Sirrus. I suspect the previous mt201 caliper had an adapter fitted. I really wish the industry would collectively organize and make it easier to decode which adapter goes with which caliper. It was a shot in the dark, but it worked.

This Shimano 160/140 Flatmount was exactly as shown in the product image. The description very precisely does not mention any of the hardware included in the kit. You should already have 2 special Shimano bolts attaching the caliper to the adapter. These screws have a specific head, I couldn't get them individually, and I had to buy another adapter somewhere that came with specific screws. it would be good. If you're installing a TRP caliper like I am, bolts don't come with it and you want to…