The liquid cooled one is fuel injected. AJPs have been available in the UK for some time. I saw some new ones for sale in a bike shop and they looked well put together, but never seen one in use on the track or trail. Despite the valiant attempts of their marketing department, I don't think they've ever sold all that well. Probably due to the conservative nature of the dirtbike buying public, especially when it comes to machines that don't sit comfortably in a particular category. The depreciation in value on new AJPs must be steep compared to more established brands