I've decided I can't deal with the extra weight of my 05 WR450 any longer; it's wearing me out, and its still too dang top heavy for my shorty legs! So it's down to a YZ450f or a 300exc... Howver, I searched for the answer to this question; and didn't really find the answer I was looking for... Yamahas site doesn't list the gear ratios of the 06 YZ450f either. What is the ratios of 1-5 on the 06's, and how do they compare to the 05+ WR and 05 YZXXXf's? Can the slow speed stuff and high speed fireroads still be done without the lower WR first and higher WR overdrive? Thanks in advance for any help!