40mph club

  1. Warphones

    Reaching 50mph on 66/80cc

    Hello family and friends! I have been trying to obtain 50mph on my pk80 and am getting closer with every mod. Right now I'm hitting 41mph(gps) and know it will go faster. Pk80 High compression head Copper head gasket Ported/matched intake/exhaust Ported/matched knifed transfers SKS bearings...