i'm 16, 175cm, and 65kg. from australia. in the market for a good 450 4-stroke. had my eye on an 02 yamaha wr426f for a bit, sound pretty good. yoshi pipe, recent engine rebuild.. for $3500AUD. i will most likely be spending most of the time riding to school etc, but also love tight tracks where i can go fast and hard. would this bike be suitable for this kind of thing? is there anything specific i should look for when buying/avoid this bike altogether? cheers in advance guys, big help!