Modify M6000 brake caliper? I am attempting to fit Shimano Deore M6000 brakes to my 2017 Trek Stache. The rear brake contacts the frame near the bleed port and keeps me from being able to fully align the caliper to the disk. 

The caliper is really close to having enough play in it to get aligned to the rotor. Can I file about 1 to 1.5mm off of the caliper body right where its contacting the frame? 

I know there are other brakes I could buy which would clear the frame. For reference the bike came with Tektro M285 calipers which had plenty of space. I've done my research about what other brakes can fit, but I like the M6000 levers compared to others in my price range.
I though about it long and hard and consulted a friend who works for yeti in manufacturing. Figured there is some margin for manufacturing tolerance and factor of safety.

Filing worked like a charm. Wet sanded and polished the cut afterwards and it looks great. I figured the only real worry at that spot on the caliper is structural support in case of a crash, but its protected behind the seat stay, so a little less is probably not an issue. Besides, this is the kind of material removal that might happen in a crash.

Cleaned it all up with isopropyl alcohol, toothbrush, and compressed air afterwards.






I may put some color match paint on there at some point.

Doing this was ultimately up to me and to the average person I wouldn't recommend this, but I knew I could do it well so I went for it.