Join Date: Nov 2009
Location: Highlands Ranch, CO
Actually you can use a bias tire in the front and a radial tire on the rear. Some tire sets come that way, as do some bikes come that way stock. My wife's '05 F650GS is an example and BMW recommends that configuration for her bike. As did Michelin, when she confacted them regarding the Anakee 2. So that is what has always been on her bike, and it has been fine.
The Mountains Are Calling, and I Must GoÖ - John Muir