hello, am duzzer, my curent bike is a speedfight 2 100cc my plans ar to 210 it with a runner engine,,,, hers some pics of my speedy with 21mm carb, 120cc kit and pm50 zorst etc etc,,
thank for the welcom mate i thort of 172 in it but lots of pepol have done this so i wont to be a bit difrent and try a 4T, bit slower then a 172 2T but i havent had eney good luck with 2T resenty,
why do people feel the need to bodge an engine inn a bike when you can just buy one? the spedfight conversion kits are in my opinion unsafe!! they have not had the rigorous testing a typecast motorcycle has and the kit is ment for LITTLE 50 engines... the frame is NOT made for big engines, nor is it desighned to handle torque, big engines need a twin pivot mount system or the torque cant lift rthe engine instead of the wheel... 50 conversions come up easy, they also wheelspin horidly out of corners for this exact reason... you want a 4t, buy a 4t
