I built a 12 inch front wheel to try racing at a local kart track. I didn't like it so I swaped back over to dirt wheels. Its a 12x1.6 Black wheel with Bucanan HD spokes laced to a stock KLX hub. Wheel was only used for a few races. Comes with bearings and everything needed for the swap. Buy two 12" tires and your ready for motard. Cost me around $300 to build, I'll take $175 shipped for it. If your interested, shoot me a e-mail at [email protected]. I accept paypal and money orders.
Just have to ask, how did you not love the indoor riding? I got into it last year with some friends and it's a blast. I would just think living in Maine that any riding you can do in the winter is good.