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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Wide ratio gearbox
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[QUOTE="Jeffro426, post: 799325, member: 40371"] Im willing to bet that almost all MX bikes that roll off the showroom floor wont go much more than 75 MPH stock...a friend of mine is a police officer and has a radar gun that we used to clock a few different bikes. My 426 with stock gearing(14/49) did 78 MPH on asphalt...when i put a 15 tooth front sprocket it jumped up to 85. With 15/47 it did 88. His YZ 250 did 74 completly stock, but after a gear change did 91 but was a nightmare to start off in 1st gear. I guess it all depends on what you want to do with it...you can make an MX bike do 100MPH, but your going to suffer when the going gets slow!! [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Wide ratio gearbox
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