mx1986 Posted July 1, 2013 Report Share Posted July 1, 2013 Well just did a few 300 ft sand races on my bike and ended up finishing the races in 3rd gear pinned. Not really where I want to be. The bike is a stoke cylinder bored over a few running on alcohol with a clean up port maybe dune not sure, 35.5mm carbs and rdz small bore oof, no lockout or override, also tires are 24 in 12 paddle extremes 78 ro. Weight of bike is probably that 230-270 pounds and I weigh that 190. Starting in 2nd gear. Frame is a gt performance strutted in the back with a Swing-arm that is around a +10. Currently the sprockets are a 15 and 41 and stock primaries. I know how it works less teeth out front more acceleration and the exact opposite in back. But I'd like a good place to start before I go blow money on sprockets. I think I have a 13,14,15 lying around somewhere. Quote Link to comment Share on other sites More sharing options...
JayCLL Posted July 1, 2013 Report Share Posted July 1, 2013 15-44 Quote Link to comment Share on other sites More sharing options...
rjdgriff Posted July 1, 2013 Report Share Posted July 1, 2013 15-44 That would slow him down... Quote Link to comment Share on other sites More sharing options...
mx1986 Posted July 1, 2013 Author Report Share Posted July 1, 2013 No but it won't change much Quote Link to comment Share on other sites More sharing options...
J-Madd Posted July 1, 2013 Report Share Posted July 1, 2013 15-44 I agree, good starting point. Depends on where your motor makes peak power, and if it has the the torque the pull the gearing Quote Link to comment Share on other sites More sharing options...
JayCLL Posted July 1, 2013 Report Share Posted July 1, 2013 No but it won't change much It all depends where your power band is but going from a 15-41 to a15- 44 is going from a 2.73 to a 2.93 ratio, that is a pretty big jump Quote Link to comment Share on other sites More sharing options...
camatv Posted July 2, 2013 Report Share Posted July 2, 2013 your only shifting one time?? am i the only one catching that? try stock 14/41 Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted July 2, 2013 Report Share Posted July 2, 2013 Sounds to me like the clutch is slipping. I agree with stock gearing those are tall tires Quote Link to comment Share on other sites More sharing options...
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