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Old 08-23-2016, 08:04 AM   #6
JSeery
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Default Re: Carb Riser Questions

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Quote:
Originally Posted by scooder View Post
Less rpms for same speed near top end??
A carb spacer can't possibly change the rpm to road speed ratio, that's fixed by the rear end gear ratio.
I skipped over that part as I assumed it has to be a perceived difference. As Martin states, RPM to MPH is a fixed ratio that is determined by gearing and tires and not by engine performance.
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