I've briefly talked to a guy with a Razr that was running one size tire and it made me start thinking about the idea. Most our rides are on Forest Service green sticker trails, so giving up alittle traction shouldn't be a big deal. If we were in the sand a lot I'm sure it would be a different story. I just wondered how common the one size tire was with the rest of you guys. Thanks for the info, I'll double check the offset, good point.