Hey there, I am planning on designing a bash guard to have CNC machined from 6061-T6 Aluminum at a local machine shop. I am currently in the design phase. The question that comes to mind is: How big does it need to be? My chainring is 180mm in diameter, so obviously, inorder for it to function properly It would need to be larger than that. would 190mm be too large? that would mean 5mm of distance from the outside of the bash guard to the outside of the chainring.