and now having read the article..a british off road magazine called TBR reviewed one of these bikes recently ..it was a kind of version with knobblies for the rough ...while they were impressed with the fuel cell even though it was underpowered, it could be readily refilled ..however the bike it self was mainly kitted out with mountain biking type equipment ..like the brake discs and calipers, all that kind of stuff ..and not really up to the job as a motorbike. perhaps these manufacturers have to realise that to sell a bike to a motorbiker primarily the bike must be a bike....to sell on the premise of environmentally friendly you are aiming at an entirely different set of people who may not be motorcyclists at all