My 17 year old sold his YZ250F last summer and bought a KTM Xc 300. Killer bike in all woods riding. But now he's got the "track" bug and want's to sell his KTM and get a 09 YZ450F. Although he loves the KTM he says it feels wierd in the air, not at all like his YZF did. Linkless supspension maybe? We've got an 85' step down at our house that he used to clear no sweat with his YZ250F but now he only clears it half the time saying his bike just feels strage in the air. If he's going to get back into track riding, I don't think he'll be agressive on an XC 300. But will a YZ450F be too much for tight trail riding here in Oregon? We've got some nasty, gnarly, tight stuff. I've never ridden a 450f in the woods. Any thoughts? Oh yeah. He's 5' 10" tall and 160#. Very agressive off roader, rides the pro class when he races GNCC, enduro, etc. Typically top 10 finishes. Hope that's enough info for some good feedback. Thanks.