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Dirt Bike Brands - Other
Wide ratio gearbox
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[QUOTE="Mike's 2003 YZ250, post: 799276, member: 51926"] Hey guys, I found another old thread to bring back to the top. I know MX bikes werent built for all out top speed, but I love going fast and would like to drag race other bikes if it ever came to that. What I want to know is how much faster would the top speed get with each tooth you go down on the rear sprocket, or up on the front sprocket? And how small can you go on the rear sprocket. If stock is 49, is there a 48, 47, 46, 45, 44, ...?? I am also wondering what the top speed is right now on my BONE STOCK 03 YZ250. Also, what is the stock gearing on my bike, is it 14/49? Thanks for the replies. Mike :ride: [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Wide ratio gearbox
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