The BioBike – a 100-mile-per-gallon, biodiesel-powered motorcycle – is racing 3,000 km (1,800 miles) across Australia.
The BioBike, designed by a group of seven Mechanical Engineering students from the University of Adelaide in South Australia, is in the race from Darwin to Adelaide in the Greenfleet Technology Class for environmentally-friendly engines. This story on the gizmag.com web site says the designers hope to get the fuel economy above 100 mpg while making it for the same cost as a conventionally-fueled dirtbike:
Diesel cars are well-established in the market and renowned for their ability to deliver excellent fuel economy in comparison with their petrol brethren. But why haven’t we seen more diesel motorcycles? Well, diesel engines run extra-high compression pistons, and their sparkless ignition produces much stronger power pulses – which gives them excellent torque, but means that the engine casings need to be thicker and heavier to deal with the increased stresses.
In the leisure motorcycling world, where power-to-weight ratios are everything and horsepower rules over torque, diesel simply doesn’t make sense on the sales floor.
But, as BioBike project leader Heidi McNamara points out, in areas where motorcycles are used as essential transport rather than high-speed toys, these machines start to look far more practical – particularly on farms and in military applications where diesel is used to run pretty much every other vehicle and engine.
The engine and transmission were fitted to a modified Husaberg Enduro frame, so the chassis uses all the top rated gear from White Power and Brembo in all the right places. It’s heavier than the donor bike, at around 130kg, but still very lightweight for a road-going bike.
The students hope to race the bike in the Dakar Rally one day, but in the meantime, farmers and markets in Asia are interested in getting a version for their interests.


An article from
Awareness for ethanol is rippling throughout the American consumer market. Industry leaders across the board attest to that. And it’s the IndyCar Series that is identified as one of the big catalysts that caused those waves of awareness to ripple and spread. Dave Lewandowski wrote an
Now, however, it appears that maize itself may prove to be the ultimate U.S. biofuels crop. Early research results show that tropical maize, when grown in the Midwest, requires few crop inputs such as nitrogen fertilizer, chiefly because it does not produce any ears. It also is easier for farmers to integrate into their current operations than some other dedicated energy crops because it can be easily rotated with corn or soybeans, and can be planted, cultivated and harvested with the same equipment U.S. farmers already have. Finally, tropical maize stalks are believed to require less processing than corn grain, corn stover, switchgrass, Miscanthus giganteus and the scores of other plants now being studied for biofuel production.
Ethanol producer VeraSun is considering sinking $30 million into a process that would allow the company to also get biodiesel out of its ethanol production.
Seattle-based Imperium Renewables has inked an exclusive deal with Hawaiian Electric Company, which provides 95 percent of electricity for residents of the islands, to provide biodiesel for some of the utility’s generators.
Despite falling ethanol prices and some plant cutbacks,
Ethanol is gaining more ground in the motor sports arena and more leagues are getting on board with ethanol-enriched fuel. The
One of the keynote speakers at the symposium was