IMO a 500cc with that kind of weight might be acceptable, not a 250 though. At 375lbs it's not like you're getting a good off-road capability and at 26hp you're not getting good distance capability. Let me qualify that by saying I'd be bored to tears riding a 250 wrung out on the roads we have out west. In another country or possibly back east the 250 might be sufficient. It's definitely a step in the right direction, give china 5 more years and I think their bikes will be allot more common in the US.