My bike is 5 over....lowered, and has a 205/40/17 bfg CAR drag radial. IT IS SQUARE. IT IS SOFT. First time I rode it, it was different. Now , its been months....and to be honest I rarely notice. I uusually ride very saftly on the street, you don t know what is in the street on every corner. I ussually hammer it when its stood up , on a clear straight away. I dare say that I think I can run 1.5 60's on the street. Will I ever know? no probably not, but it leaves very very well. I have a 600 arm, and it barely, barely fits. Total cost......lets see... I had to buy this stuff anyways, as I rebuilt the bike....the arm was 400$, the wheel and tire was $350......and I have another stock wheel with regular 180 race tire on it that is a direct swap. I do not use it though, I thought I would.
The tire is 8.5 inches wide.....tread is 7.5. The bfg is shorter then a stock tire, and I have it geared 17/45 now......which is pretty good for drag racing and my 250lb frame.
I think one of the best parts is that yes it looks cool, it dosn t cost a lot like a 240 conversion, and it interchanges with a the oem stuff so drag racing friday night, and canyons on saturday is pretty easy. I am lazy though and ussually find myself on another bike on saturday like my 1200 bandit.