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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Grunt??
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[QUOTE="wayneg, post: 157067, member: 24675"] Hello The other thing is that you're comparing a two stroke (KX250) that is designed for motocross/supercross and and four stroke (520MXC) that is designed more as a cross country bike. Obviously the design purpose and state of tune of the motor is a pretty important consideration when comparing different bikes. I would think that you'd be better off comparing the KTM 520 with a KX500, or the KX250 with a YZ250F to get back to comparing apples with apples. I have a Beta trials bike that is a two stroke with lots of low end tractability, and a huge flywheel (hence great low end "torque"). This bike is 250cc, and puts out around 15 horsepower, so it is in a very mild state of tune. The KX however has a very small flywheel, and is tuned for mid to top end power. The difference in power is around 30 horsepower, and the difference in the bike's power curves and torque curves is also pretty big. The tuning is something that will aways be a trade-off, with a good compromise being easiest to have with larger capacity bikes. Probably something like a Gasgas enduro bike would be a good idea if you really need a two stroke with low end tractability Cheers Wayne [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Grunt??
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