The Greenfly

The Greenfly, probably the world's first LPG motorcycle,  aims to respond to the current ecological, energy and transport challenges we face. 

Designed by mechanical engineer Dave Akhurst,  the Greenfly prototype is at the forefront of renewable vehicles. Dave built the motorcycle with efficiency and simplicity in mind: it has 25% less parts than existing motorcycles and weighs only 110kg (including spare wheel).

The fuel and weight of the Greenfly aren't the only innovative features of its design.  It also includes a spare wheel and a pannier to carry shopping, making it more utilitarian than most motorcycles.  For a more detailed description please see the specification page. 

Designed for large-scale production, and easy to ride and service, the Greenfly is a perfect interim green transport solution. Even at the end of its usable life, 80% of the machine can be recycled.


In a world in which demand for personal transportation is growing, yet natural resources are diminishing, and our impact on the environment is becoming an ever greater issue, motorcycles have much to offer.  That's why Dave would like to see the Greenfly be put into production, particularly in the growing market of India, where LPG is widely available.  

200 million people ride motorcycles worldwide. What if all of them were as green as the Greenfly?

LPG has great environmental credentials: 

* 63% less carbon monoxide and 40% fewer hydrocarbons than petrol
*10% more fuel efficient than petrol
* 90% fewer particulates by weight than diesel
* 95% less  nitrogen oxide than diesel 

But also: 

* is  quieter than a diesel engine 
* increases engine life due to the absence of acids and carbon deposits
* is readily available globally