Originally Posted by maniac57
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 20÷20 = 19.8mph
Right now it's 24 to 13 baby teether pretty much 15.5mph
This is ambrionic to what it could do.