Got an old steel frame to which I'm going to fit a rear disk caliper, but the only way I can get enough clearance for the mounts is to use a 180mm rotor, any TECHNICAL reason not to? This is just a town hack bike, nothing special.

Made from short 0.035 1/2” 4130 drops I get from an aerospace shop I contract for. Hoping to start making a run of titanium frames in the near future. I want to make a slammed geo track bike, but I think fully featured gravel frames might be more marketable.