thanx its the wifes bike. a gotta get the suspension down she says it vibrates alot around 80mph it has a mitch match tires (could that be the problem?)front pirelli120/60/17rear dunlop170/60/17.I rode it a couple of times, i thought it was a tank slapper ??? but it wasnt i dunno if it needs a dampner or have someone else(I will ) check the set up. mods done on the bike powercommander pc3 remus hi mount, paint, mirrors,marvic penta 2, sprockets i want to say 14/44(not sure)any ideas?