So, I Just ended up getting my hands on a 2002 CRF450r. Here's my transition. 1984 YZ80 Year:2000 1988 XR100 Year: Year 2004 1989 KX125 Year: Year 2006 2003 YZ250f Year:2013 2002 CR250r Year:2013 2002 CRF450r Year 2013 I'm 20 years old and have had these bikes, anyways I just have to say moving on to a 450 is alot harder than I expected. The 5 year gap of not riding and than getting a 250f is nothing compared to going from my 250 smoker to this 450. My 250 smoker was a fast bike I will not lie, and it was a ton of fun, but the 450 has some gnarly torque! I've only had it for a couple of days, but wow theres just power in every single part of every gear, and it responds so well to any situation! On the other hand, my 250 smoker was alot more fun, I felt like I was actually in control. This 450 makes me feel like im her BEE EYE TEE CEE AYCH. How long did it take for you guys to get comfortable on a 450? Jumping and cornering are a completely different playing field from 250's that's for sure.