Rear sprocket size??????

Discussion in 'Hubs, Gearboxes, Sprockets and Chains' started by harry76, Jul 23, 2011.

  1. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

    Jul 28, 2010
    Likes Received:
    80 is really a 66cc.
    28 tooth rear sprocket is only for a highly modified engine.

    Depending on your weight and if you have hills to climb a 36 tooth would
    be the smallest for a stock engine.
    Have you tried riding with the usual 44 tooth sprocket?
    indian22 likes this.
  2. Greg58

    Greg58 Well-Known Member

    May 1, 2011
    Likes Received:
    I ended up using a 41 tooth on my 66cc bike, on the 48cc the 44 was better. It all depends on your weight, the terrain where you ride and how much you want to pedal. I have modified both motors with custom pipes, the 48cc actually went slower with a smaller sprocket because it was not in the power band. I would suggest you try it as it comes and go from there.

Share This Page