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Old 01-15-2009, 12:32 PM
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r_chez_08 r_chez_08 is offline
Should be in the shop...
 
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use the speed calculator
http://www.diygokarts.com/speed-calculator.html
from there you can find the right gearing for you (6:1 gearing would get you going 12 mph @ 3600rpm. if you could pick up a 40t sprocket, or 15t clutch you could get your speed up to 19mph @ 3600 rpm.)