My problem is that I work at a Yamaha shop, so I'm always thinking I need something new. We have a 2015 YZ250F demo and a 2015 YZ250FX demo. A couple of weeks ago I spent some significant time in the woods on both, being able to switch back to my WR in between loops. I love 100 things about both 250's, but the FX is my favorite. If we would've been at the track the 250F would've been. Both 250's seem to have noticeably less power than my 13' WR450F. With that said, I'm way faster on the FX. It's so much lighter it's like riding a mountain bike. You definitely have to shift more than the WR. The 250F is a dream in the whoops and rutts, but the FX (to me) is way better in tight single track. It's geared for the woods with just a bit taller 1-3 than the 250F. Did I mention how smooth the clutch is on the 250's? Crazy!
If I was going to start over with a new bike, the YZ250FX is my girl.
How big are you ?
I've got my 2012 Wr 450 down to 248 pounds with fuel. I've got the suspension working fairly well. It is a pretty decent ride in tight woods. It seems to be doing really well playing "chase the 2 strokes" in even tight woods conditions. And it's a champ at hill climbing. I basically love it.
But my friend, a vet expert, same size as me, swapped bikes with me and says my WR is still "a lot of bike". He has a 2008 YZ250F set up for woods. It weighs 231 full of fuel, a full 18 pounds less than my bike. He says I would be faster on a smaller bike.
I do really well riding my WR with riders of similar or more ability on their 300cc 2 strokes. The vet ex racers leave me behind, but it isn't as dramatic as you'd think. They have way more skill than me, so my WR must be pretty competitive with their bikes ?
I haven't ridden a YZ250FX, but it would have to be the bike I'd get if I were to get another bike. Knowing what I do from lightening my WR, I'd lighten it up a bit. The big question I have is would it have enough power ? People say that WR450Fs have too much power for tight woods riding, but I love mine. Is there a big bore kit for the YZ250FX ?