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Yamaha MX & Off-Road Dirt Bikes
ttr-125l gearing change
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[QUOTE="will pattison, post: 17613, member: 19283"] uh...i dunno about yours, but ours has a 1-piece rear sprocket. anyhow, i did the math, and the 3.77/1 ratio gives about a 5 mph advantage at 3600 countershaft rpm on the l-model. i don't know what the stock countershaft on the smaller ttr is, but at 3600 countershaft rpm, the speeds for the stock l-model and a 49/13 combo on the 14"-wheeled model are 41 mph and 39.77 mph, respectively. wp. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
ttr-125l gearing change
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