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Old 03-22-2014, 03:31 AM
Theon Theon is offline
Motorized Bicycle Elite Member
Join Date: Jan 2014
Location: FNQ Australia
Posts: 1,440
Default Re: What more can I do (please read)

Shift kit won't get you any faster than a 32t sprocket anyhow.
By Redline, do you know what revs your doing?
With a standard motor you may get a slightly better top speed with a slightly larger sprocket, but more revs. your top speed sounds about right for a standard motor, to get even close to 50 MPH, you will probably need either a better motor or port job, hi compression head and expansion chamber. Even then, unless you get everything spot on with a well balanced crank, your looking at about 45 MPH tops.
50 MPH will be over 9000 RPM.
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