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Everything Dirt Bike
Make / Model Specific
Kawasaki
2011 Kawasaki KX 450
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<blockquote data-quote="PSJBrock" data-source="post: 118243" data-attributes="member: 1050"><p>Depends on the dyno etc. Motocross Action:</p><p>"The dyno curves on both the 2010 and 2011 KX450Fs are very similar—where they differ is that the 2010 bike is much stronger off idle (from 5000 rpm to 7000 rpm) and a little stronger on top (from 9000 rpm to 10,500 rpm).</p><p> </p><p>So where does the 2011 bike shine? It would be easy to say that the 2011 KX450F is stronger than its 2010 brother through the meat of the powerband (7000 rpm to 10,000 rpm). And, if you looked at peak horsepower, you might believe it. <u><em><strong>The 2011 KX450F’s peak power is 54.17 horsepower at 8600 rpm.</strong></em></u> This is two-tenths of a horsepower better than the 2010 model at peak (53.90). When you look at power output at 1000 rpm increments across the midrange, the 2011 KX450F makes more horsepower than the 2010 model at 7000 rpm, less horsepower at 8000 rpm, more horsepower at 9000 rpm and less horsepower at 10,000. The peak horsepower of both bikes is tucked into the 8000 to 9000 rpm window.</p><p> </p><p>What does it all mean? The 2011 is mellow off the bottom and a little stronger from low-to-mid, while the 2010 is stronger off the bottom and better on top. But—and this is a big but—the only thing you’ll notice in the saddle is the difference in thrust off idle. "</p><p> </p><p>-Brock</p><p><a href="http://www.powersportjunkie.com/" target="_blank">powersportjunkie.com</a></p><p><a href="http://www.shoppsj.com" target="_blank">shoppsj.com</a></p></blockquote><p></p>
[QUOTE="PSJBrock, post: 118243, member: 1050"] Depends on the dyno etc. Motocross Action: "The dyno curves on both the 2010 and 2011 KX450Fs are very similar—where they differ is that the 2010 bike is much stronger off idle (from 5000 rpm to 7000 rpm) and a little stronger on top (from 9000 rpm to 10,500 rpm). So where does the 2011 bike shine? It would be easy to say that the 2011 KX450F is stronger than its 2010 brother through the meat of the powerband (7000 rpm to 10,000 rpm). And, if you looked at peak horsepower, you might believe it. [U][I][B]The 2011 KX450F’s peak power is 54.17 horsepower at 8600 rpm.[/B][/I][/U] This is two-tenths of a horsepower better than the 2010 model at peak (53.90). When you look at power output at 1000 rpm increments across the midrange, the 2011 KX450F makes more horsepower than the 2010 model at 7000 rpm, less horsepower at 8000 rpm, more horsepower at 9000 rpm and less horsepower at 10,000. The peak horsepower of both bikes is tucked into the 8000 to 9000 rpm window. What does it all mean? The 2011 is mellow off the bottom and a little stronger from low-to-mid, while the 2010 is stronger off the bottom and better on top. But—and this is a big but—the only thing you’ll notice in the saddle is the difference in thrust off idle. " -Brock [URL='http://www.powersportjunkie.com/']powersportjunkie.com[/URL] [URL='http://www.shoppsj.com']shoppsj.com[/URL] [/QUOTE]
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Everything Dirt Bike
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2011 Kawasaki KX 450
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