Hayes Diesel Technologies, USA, stands firm on a core value system that embraces Innovation, Quality and Service. Hayes-DT delivers uncompromising technology, dynamic engineering and revolutionary design to its customers in every product. The company's size, expertise and intensity allow for greater flexibility developing leading edge technology for the motorcycle and small diesel engine markets.

We are honored to serve the men and women of our Armed Forces by providing the best equipment possible. Hayes-DT is proud to provide the best in diesel motorcycle technology to both our government and civilian customers.

Note: We are not in current production of our diesel fueled motorcycles and cannot project a production date at this time. Please check back with us as we will post regular updates.

Racing for the Right Reason
May 13, 2011
Fred Hayes and his Wonderful Diesel Motorcycle, Winner of the Vetter Challenge on the Quail Ride.

The Search for Fuel Economy
October 9, 2010
Motorcycle history was made today with the first public demonstration of the Hayes Diesel. The Diesel performed as advertised. Fred Hayes, piloting his own creation, consumed the least fuel... ( B20 Bio-Diesel, by the way ).

Chapter 50:
Las Vegas to Barstow
Nov. 20, 2011
The results are in for the Las Vegas to Barstow Challenge test ride Earlier this year

Five of the new Challengers met at the AMA Hall of Fame Inductions in Las Vegas to check out the possibilities. First, we displayed our machines Saturday at the David Mungenast Memorial Concours...