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Why do sport bike engines rev so high?

This is a discussion on Why do sport bike engines rev so high? within the FZ6 forums, part of the Yamaha category; I was riding my Yamaha FZ6 on the highway and even at 70mph it was running at about 6-7000 rpms. ...


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Old 12-03-2008   #1
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Default Why do sport bike engines rev so high?

I was riding my Yamaha FZ6 on the highway and even at 70mph it was running at about 6-7000 rpms. Can running that high for a long period of time damage the engine at all? Just wondering..thanks.
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Old 12-06-2008   #2
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No harm, they're built for that. As to why? More RPMs = more power.
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Old 12-08-2008   #3
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because they need to to have the power to travel at those speeds, don't forget that your bike has an engine capacity of 0.6 of a litre, and still has four cylinders, so thats only 0.15 of a litre per cylinder, which is less than half the size of even a small car engine's cylinders.and no it won't damage it, they are designed for it, the honda cbr250rr revs up to 17,000rpm...
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Old 01-13-2009   #4
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6-7000 rpms is barely breaking a sweat on an FZ6
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