Hi....This might sound like a real newbie question but I have the chance to buy a brand new 2005 yz450 out of a crate for £2800 ($5,150). I just wondered how will it compare to a 2001 wr426 with all the yz mods? and im intrested in starting motocross and I know that a 125/250f is probley a good bike to start out on but this deal is too good to miss! btw im 18 years old and weigh 11 and a half stone if that makes any differnce! Thanks in advance!