My son has a 50cc Meerkat that I'd like to change the gearing on (change it such that it starts off on hills easier and also limits top end speed). I've found a couple websites that offer different front/rear gears, but they are ment for either #420 or #428 chain size. Does anyone know what chain size came stock on the 50cc meerkat, or how I can tell which is installed on my machine?

Chris

 

the meerkat uses the 420 chain.