I have a 1980 Murray moped with a Puch e50 engine. I want to get some more top speed, so I am thinking of changing the sprockets to 18/42. Would my stock (otherwise) bike do ok with that setup?
I'm also thinking of getting a hi-flow air filter and re-jetting the carb.
Thanks,
Joe
All of above got u more speed but poor gettaway.
The smaller the rear,the more MPH. Larger rear,more bottom end.Anytime you let the engine breathe better, you will gain performance. More air = more power.You can always add fuel.
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