Hi Everyone. A freind of mine got a new tire for his bike. I took the wheel off and gave it to him. When he gave it back to me I put it back on. Now the tire rubbes on the belt drive. The tire is 150/80E16 Dunlop rear. I belive the tire is to wide. His bike is a 1992 FXRS which is a low rider sport I think. Would anyone know what the correct tire size he would need ? The old tire is gone so I can't look at that. Thank you for your help.