ADRL Announces Rule Changes for Pro Extreme Motorcycle

O’FALLON, MO (August 2, 2010) - The American Drag Racing League (ADRL) has announced rule changes for its Pro Extreme Motorcycle class, effective Sept. 1.

At that time, restrictions on fuel injection and nitrous systems will be lifted, allowing for better performances and less wear and tear on parts.

PXM entries will also be allowed to run electronic fuel injection, mechanical fuel injection or carburetors.

The only limitations on the nitrous systems will be one nitrous nozzle per cylinder.

The change should allow for better and more consistent runs in the exciting class.

“It’s time we bring current available technologies into the Pro Extreme Motorcycle class. Having the ability to mechanically progress the nitrous oxide will really help control the power that these machines create,” ADRL Director of Technical Services Tom Grooms said.

“Being able to better control the fuel and nitrous will make these machines much smoother with more repeatable performances. It’s a no-brainer.”