I'd be hard pressed to believe that bike can hold 60 for very long. seems like you'd have the motor wound up as tight as it would go. besides that, on WV mountain roads, you'll have serious lag going up hill. I gotta guess that if you're going to be on the road at all, you should opt for the 250 size.
the models you listed are pretty varied. what type of riding do you intend to do with the bike?
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