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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Yz250f
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[QUOTE="JasonJ, post: 112611, member: 23758"] Well 4 cyl streeet bikes have been hitting 13 K for some time now. The 5 valve design has been on the Yamaha street bikes since the Genisis FZR bikes I think. This teck has been around for some time, it is just now trickeling down to the dirtbike market. What surprises me the most is why direct injection 2 stokes with oiless bearings (no mix, no smoke) like the Bimota 500cc street bike uses has not crossed over to the car and street bike race world. I saw an RZ 350 on the way home from work and remembered how cool they were. 1986 2 cyl 2 stroke street sport bike. After they outlawed em in the states, the 2 cyl 2 stroke found its way in to the Banshee. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Yz250f
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