Im new, got an old BMX bike im thinking about putting a super fast engine in, but im only 14 so im limited on funds, any tips for a good cheap motor thats fast and upgradeable?
thanks, any tips on where to locate a one? id like a 4 stroke, but would settle for a 2 stroke if a 2 stroke is cheaper. also any tips on what would be fastest for my money and possibly upgradeable?