I have a new set of Bridgestone Spitfire tires for sale. 130/91017mc68h rear tire,110/90-18mc61h front tire. $100.00 for the set plus freight. If you live close to Houston,Tx I can arrange for delivery or you can pick up. I am retiring from riding due to old age and health so will be posting other parts for 1981 gl1100 soon.