I changed the tube on the front tire and didn't think it was too hard, except for that last 10 inches putting the tire back on, and I think maybe that was because I was at the valve stem and the rim-lock was holding the tire out too much. Anyway, how much harder is the rear tire? I have a new rear to put on, but if it's much much harder I'll probably just take it somewhere to get it done. If it's not that much worse to do I'll just try it myself. I think the only place that does it around here is about $40 if I take the tire off the bike for them. That's not so much, but they are about 1hr drive, cause I live out in the sticks. What do yall think?