Yes and no. The TIG welded frame is more aesthetically pleasing. TIG is also a stronger weld than MIG. However, many many bike frames have been welded using the MIG. And those MIG welded frames work just fine for street, race or whatever the purpose. I personally like the MIG welded frame for a naked bike, because the frame is on display.So does this make a 2012 1090RR a desirable unit due to better frame?