regarding help?

Discussion in 'Motorized Bicycle General Discussion' started by TheSignGuy, Aug 14, 2016.

  1. TheSignGuy

    TheSignGuy New Member

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    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?
     

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