I'm running a ME880 MARATHON 170/80 B15 (15") M/C 77H right now on the speedmaster(stock) can I get away with putting a 180/70 B15 M/C 76H on the same rim without problem? The next size up is 200 and I'm sure that won't fit.

Last edited by speedblastr; 12/20/2007 7:51 PM.