regarding help?

TheSignGuy

Member
Nov 24, 2014
452
7
18
seattle, wa
SCHWINN CHOPPER SUZUKI FA 50


front sprocket location- (rear rim on motor is converted to a sprocket) 13 tooth.

Rear sprocket location- (rear back tire on the schwinn 20 inch rim)
24 tooth.


Mathmatic back to front- rs 24 x fs-13= 15.5mph

I wish to re gear the (REAR ONLY) SO what tooth mathmatic do I need as shown to equal listed.


Rs? x fs13= 21-25mph?