I just bought a Pirelli MT16 120/110-18 rear tire for my 2000 KDX 220. The guy at the shop I bought it from said it would fit but it looks huge by large to me. Is this tire too big for my bike? I've read some stuff on here saying it's a tire for a bike with much more power. I was having some traction issues (we ride a lot of tight, muddy stuff with lots of roots and ruts out here) so I wanted to go with a bigger tire. I think I may have overdone it though. Anybody run this tire on thier KDX? Thanks for any help.