Howard, your 1WG will handle Bridgestone´s BT 014 tires - this is what I have on mine. The front is 110/70/17 and the rear can handle 150/60/18 without any problems(Manufactures specs for the rear are 140/60/18). I picked up mine on E Bay from a store called JC Motors Motorcycles, They delivered them to me in about 5 days time and the total cost (including shipping) was USD $180.98. They offer excellent grip and are ´Z´ rated for speeds up to (and over) 140 MPH. Hope this helps! Elliot.