Personally I think the Spark is a modern Yamaha licensed quad engine (but bought through the back door), but with a Cagiva copied everything else. I also think this will not be the first Chinese 400cc+ pure street bike to be available for general sale, because Asiawing do not see the market potential and another manufacturer such as Zongshen will beat them to it. This is because most Chinese manufacturers do not see the value of a 500cc commuter bike for a reasonable price. I've been trying to get Asiawing to nail down an idea of ANY bike 450cc plus that could be registered in China, and have failed. All know is the LX450 which compares poorly with the Japanese competition is available for sale, export only.