shortman1166
Scoot Member
Posts: 52 
Location: Lafayette, Indiana
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Post by shortman1166 on May 30, 2018 19:54:45 GMT -5
I was wondering how much speed can I expect to pick up if I switch to the 49/17t Performance Final Drive Gears from the standard gears that come with the 49cc gy6? I have a 47mm BBK installed to give it more power but I am always riding at higher speed and it easily hits 9-10k rpm and I want to lower the riding rpm a bit while maintaining or increasing the speed.
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Post by eclark5483 on May 30, 2018 20:06:47 GMT -5
Kid I sold one of my TaoTao that had the high gear in it got it up to 55mph, GPS confirmed. He is a skinny runt though, I'm sure that factors in.
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Post by eclark5483 on May 30, 2018 20:08:12 GMT -5
Forgot to mention, also had 47mm bbk A9 cam, 21mm carb, Polini CVT.
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shortman1166
Scoot Member
Posts: 52
Location: Lafayette, Indiana
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Post by shortman1166 on May 30, 2018 20:12:43 GMT -5
Is there another gear ratio that would work better for top end? I do not want to lose all my acceleration but I can give up some of it.
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larryhobman
Scoot Enthusiast
Posts: 117
Location: Delaware beaches
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Post by larryhobman on May 30, 2018 22:21:24 GMT -5
I took out my 49/17 because it lowered my rpm too much. I was running a 47mm and a A9 cam. Switched to 11.05 Final gear ratio Primary 52/16 and secondary 51/15 and I am much happier with the results. Check your ratio before you switch. Stock can be 11:1 13:1 and just picked up a scoot that has 15.25:1
The 49/17 put me at 9:1 and I felt that a 47mm is too light to push that.
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