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Old 09-07-2011, 06:31 PM
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Greg58 Greg58 is offline
Motorized Bicycle Elite Member
Join Date: May 2011
Location: Newnan,Georgia U.S.A.
Posts: 2,621
Default Re: Do I have performance issues or do i just expect to much?

I have a 48cc grubee angle fire with only slight mods. and get 31 to 32 on flats,with the stock 44 tooth sprocket. The only mods are cleaning up the intake and exhaust and matched them to the ports, sbp air filter and the muffler end cap extra exhaust tube. Main jet drilled to a #64. On mine the mid range is very good, when we ride as a group when climbing hill I can pull out and pass two others I ride with even though I out weigh both.
Your results may not be the same,Greg
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