So right now I have an 07 KX450F that is a retired race bike. I have very little money in it. It was owned and raced by a friend so I know the history. Im a woods rider, and I've been without a bike for a couple years. I got a chance to pick this thing up to trail ride when he moved to a new blue bike. After 2 rides I've been bitten by the bug again. I want to start doing regional hare scrambles here in the southeast. The bike saw 4 seasons doing just that. I am 5'10 170lbs and fairly quick in the woods for someone who hasn't competed in HS or Enduro. This bike is sprung and valved for someone almost 100lbs heavier than me. You can imagine how that feels. It has a lot of good mods already done and had a new top end put in before I bought it. Valves are in spec. No weird noises, pulls hard, etc. It has an aftermarket triple clamp, cut down bars, an 18" rear wheel, MRD exhaust, its jetted correctly, new stator etc. It needs fork seals. If I keep this thing I will have to have the suspension redone. Other than that it is ready to go. This is the first 450 I've owned and used in the woods. I know the 07 is among the lightest and most violent of the kx450's put out as far as power delivery. Between that and the clapped out forks with springs from a geo metro I feel like the bike is riding me in the gncc style trails and lets not talk about the super gnarly single track. He had a rekluse in it when he raced it. That might help some but I've never been a fan of the auto clutchs. I rode observed trials for a couple years and I can't wrap my head around the idea of feeling disconnected like that. So I was thinking about selling this thing and getting a newer 250f. I shortly contemplated 2t's but 4t's suit my riding style better. I had an 06 WR250F for a year and loved it in the woods. I had much more fun because I could push the bike a lot harder. I did all of the free mods and it was no slouch sfter jetting and a pipe. I never had the suspension done though. This 450 feels like a battle tank in the tight stuff. It feels top heavy and does not inspire confidence. I know some of that is the suspension. Here is my dilemma. I want something lighter and more flickable with a more controllable power delivery to race. Then I looked up the weights. 2007 kx450f is listed at 243lbs curb weight. 2014 kx250f is listed at 234lbs curb weight with less fuel. Dimensions are basically the same. Having ridden trials I know 9lbs is a lot, but is it worth switching bikes over? I know somw of the added weight is from the FI which will help with the power delivery so it is a catch 22. The 2007 250f was just over 200lbs dry. So TT, should I spend the money on a suspension refresh on the older modded 450 or pick up a new or lightly used 250f and mod it myself? I hate to dump money into the 450 suspension and still not feel comfortable on it. Since it matters I will make money if I sell the 450 so I wont be taking a bath on a swap. I put this in the 450f section to try to get opinions from both sides.