Motorcycle drag racing (also known as "Sprints") involves two participants lining up at a dragstrip with a signaled starting line. For the Transformers character see Drag Strip. A dragstrip is a facility for conducting Automobile and Motorcycle acceleration events such Upon the starting signal, the riders accelerate down a quarter mile long, two lane, straight paved track where their elapsed time and terminal speed are recorded. For the Transformers character see Drag Strip. A dragstrip is a facility for conducting Automobile and Motorcycle acceleration events such A free falling object achieves its terminal velocity when the downward force of gravity ( Fg)equals the upward force of drag ( Fd) The rider to reach the finish line first is the winner. The most well-known form of motorcycle drag racing is the Pro Stock Bike category, although several other categories exist, including 1,000 horsepower nitromethane engine. Pro Stock Motorcycle, formerly known as Pro Stock Bike is a Drag racing class that is the two-wheeled equivalent of Pro Stock.