Hello, I was just curious as to how free the back tire should spin. I think mine is a bit too restricted and barely turns without the power of the engine. Plus, are there always loud noises with the chain? It seems that mine rattles an awful lot and other similar bikes seem much quicker. I do think that the 80cc is quieter than the 49 high output mine seems to be called.
any assistance would be great
any assistance would be great