Rear only tire on the front?

[dave]

Tires that are identified as front or rear only are done so for a reason. The majority of the torque transmitted through a rear tire is the result of the engine driving the bike forward. The only torque transmitted through the front tire is due to braking forces, and is in the opposite direction of torque applied through the rear tire. Don't quote me on this, but I think the tire cords are wrapped in different directions for front and rear tires.