I started down that path with metric washers. I had imagined swapping the MTB caliper for the road would have been as easy as bolting it in place with the 160 bracket attached. Nope. Not even close. Even the 160 bracket that worked with the MTB caliper was too short. And the 201 bracket included in the kit, was too short. I purchased 3 metric washers today, and it is close. But I need to snag a couple more I think. I ran out of time today, family obligations. I thought I had a stash of metric hardware for my radio control stuff, but can't seem to find that box. Grrr... But I can see I'm close. I may get to ride tomorrow!