Have an opportunity to get some Dunlop DOT race D211 GP-A take offs. I use a 2007 XB12R as a dedicated track bike, and wondering what affect going from a 180 rear to a 190 might have if any. I have removed all the belt guards. Looked at Dunlops site, they prefer the 5.5" rim, so just looking for some input. Any one use a 190 on the track.