I just noticed that I have a back tire on the front of my Touring. I have heard that if you put a back tire on front it needs to be put on backwards. I have a lot of cupping on tire but lots of tread left. I am thinking of turning tire around. I took the wheel off but it appears that the wheel can't be turned around because of rotor difference, so I will have to remove tire and turn it around. Bike has been hard to handle in turns but has smoothed out some with miles, also bike has viberation in front at 80mph and above. I think the problem is that rear tire is made to grip the road and front tire is made to roll freely. Any suggestions appreciated, thanks, Tim.