Got lots of questions - One of my buddies just sold his 99' WR400 and is looking for a new or newer WR. I told him about the differences I knew of with the 04 vs 05, but can you guys give me more info that I can relay to him? 04 - harder hitting, no AIS (Utah, no green sticker issues to worry about), 20mm taller, bigger fuel tank 05 - smoother engine, smaller tank (more nimble), AIS equieped, 20mm lower [than the 04], bigger fork (not sure by how much), slimmer? 06 - I know nothing Also, if you or anyone you know in Utah has one of the above mentioned models for sale, please PM me or send picture w/ contact info. Thanks everyone.