Re: gear up kit yes, whoever you buy the gear up from would have made a bit of money..... not much else, other than dead acceleration and most probably a lower top speed. LOL
Re: gear up kit As above. Doesent work on a standard 50, poor little engine doesnt have enough power to pull the higher gears. Kinda like expecting a 5 year old, to pedel an Adult bicycle in TOP gear. No accleration and less topend if anything.