I have fairly limited shop space...all my bikes and big tools are on dollies or castors of one sort or another.

Several years ago I built a "lazy Susan" for turning my bikes in the shop.

I bought a industrial type lazy Susan bearing...about 8 to 10 inch outside diameter (about $60). Screwed this to a fairly heavy plywood base. Purchased a 8 foot piece of two by ten and stiffened it on the sides with some 1/4 inch x 1 1/2 inch angle iron. I sawed the plank on the ends so it had ramps at either end of about 4 inches when laying on its flat. This gets screwed dead on center to the lazy Suzan on the side opposite the plywood with the ramps facing up.

Place it in the center of the driveway. Run the bike up on it and slowly find the balance point. You can then turn the bike, essentially on a dime.

I know this explanation is worthless without pics.....however I am half a country away from the device. If you google lazy Susan motorcycle turntable you will get the gist of it.

tink