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Alpha03Omega Added a reply to Why are modern 250F's so slow?
10/18/2025 3:43am I wanted to also note, I love my 21 kx250f. But I've noticed that she's heavy. Heavier than what I remember my older 250f's being and not as flickable. I had a 04 yz250f, 06 crf250r, and a 07 rmz250 for reference.
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Alpha03Omega Added a reply to Why are modern 250F's so slow?
10/18/2025 3:36am I agree, let's expand on the topic. What other factors would you say are imperative to defining the evolution of the modern 250f when comparing to their predecessors? History shows that manufacturers have made mistakes and have gone backwards from time to time.
Alpha03Omega Added a reply to Why are modern 250F's so slow?
10/18/2025 1:56am Lol, ill admit, I'm not as lean as I was 20 years ago. I was a teen back then. I'm training to get back to my old riding weight. Buying another 250f is going to be a tool to help me achieve my goals. I've got the 450 to haul my fat ass when I'm feeling lazy.
Alpha03Omega Added a reply to Why are modern 250F's so slow?
10/18/2025 1:51am Being stuck at work on a Friday makes the brain wander and ponder lol
Alpha03Omega Added a reply to Why are modern 250F's so slow?
10/18/2025 1:50am Dry weight without gas for modern bikes put them in the 220-230lbs range. I am fully aware of how they weighed bikes back then. I owned enough of them over the years.
Alpha03Omega Added a reply to Why are modern 250F's so slow?
10/18/2025 1:41am That title was to gain traction as well as help drive a great discussion on the topic of how far bikes have actually evolved. I see that it got your attention. Did some of the advancements infact cause some detriment to the performance aspect of bikes? Fast can be a simple formula when you look at it objectively.
Alpha03Omega Started a new thread Why are modern 250F's so slow?
10/17/2025 5:05pm What's up everyone? I had an interesting thought that came to mind when I was looking up stats on my recent purchase of a 250F. I noticed a dry weight of 230lbs, and Hp/Torque figures that were south of 40. I also noticed higher compression ratios, and higher rpm for max hp and torque figures. 15-20 years ago, a 250F...
This forum thread has 34 replies.
Alpha03Omega Added a reply to 2024 Kawasaki KX450 and KX450X
10/25/2024 5:04am Thanks for the link. It's a pretty informative article. I didn't think that the valve train on these bikes changed that much since the shim under the bucket style was around, clearly I was mistaken lol.
Alpha03Omega Added a reply to 2024 Kawasaki KX450 and KX450X
10/24/2024 2:05pm Lol it's done it since new and I've got about 15hrs on it now. I guess ill learn to ignore it, gonna be hard to ever since I owned an 06 crf250, which had the habit of eating it's valves. Sometimes in my dreams, I can still hear their screams of repetitive torture lol.
Alpha03Omega Added a reply to 2024 Kawasaki KX450 and KX450X
10/24/2024 9:25am Question, has anyone else noticed a tapping sound coming from the head on the 24 kx450s? This is my first 4 stroke grasshopper, I've had 2 stroke kawi's before and other branded mx 4 strokes. I don't recall the valve train being as loud on those.
Alpha03Omega Added a reply to 2024 Kawasaki KX450 and KX450X
6/14/2024 3:37pm I don't always trust ebay to deliver the items I am seeing in the pictures. I've had a couple of "wtf is this" moments with ebay. Anyone know where I can get them?
Alpha03Omega Added a reply to 2024 Kawasaki KX450 and KX450X
6/14/2024 2:09pm I've been looking for these, where did you get them? I can't find any for the 24, unless the 23 ones will fit.
Alpha03Omega Added a reply to 2024 Kawasaki KX450 and KX450X
6/8/2024 6:04am I had a question about opening up the stock exhaust. I know, Im sorry, Im sure this topic has been beat to death. I have both screens out and the baffles bent flush so they are no longer protruding. The question is, should I have just cut them out? Or will bending them like I did be sufficient enough to...
Alpha03Omega Added a reply to 2024 Kawasaki KX450 and KX450X
6/7/2024 9:10am I figured as much. I was just curious to see if there was another reason. I noticed this bike likes to puke coolant more than my old 22 rmz450. I don't think that bike ever boiled over. Wonder why this one does more often.
Alpha03Omega Added a reply to 2024 Kawasaki KX450 and KX450X
6/7/2024 8:36am Hello all, I am new to this forum and this will be my first question. I read that some folks are running a 1.8 radiator cap on the 24 kx450. I was wondering why that is and if I should be doing the same. Oh, and I just picked this up almost a month ago.