View Single Post
Old 08-24-2016, 09:42 PM
TheSignGuy TheSignGuy is offline
Motorized Bicycle Elite Member
Join Date: Nov 2014
Location: seattle, wa
Posts: 203
Default Re: stuck sprocket on a old kids bike that is held on at the crank?

Originally Posted by maniac57 View Post
Your math is wrong.
A smaller rear sprocket will RAISE top speed if front stays same.
Not like you have it

Was thinking more long the lines of this speed ratio 18- 22 set up 18 being in the front for longer flat level for the gear ratio,

18x 2020 = 19.8mph

Right now it's 24 to 13 baby teether pretty much 15.5mph

This is ambrionic to what it could do.
It's NOT what you Can't DO Its About What YOU Can build.
-Harley and Davison.
Reply With Quote