I doubt many motorcyclists would argue that some form of speech or expression is not occurring when one performs a burnout on a motorcycle, though many riders above the age of 12-years-old might find the communication being conducted to be base and/or annoying, and thus chooses to refrain from such activities. But, just as clothing can be viewed as an extension of one’s persona, a motorcycle too can be viewed as an extension of an individual’s personality, and it can be a tool through which he or she expresses him or herself (I would argue that this is the primary reason many motorcyclists ride motorcycles in the first place).
According to the American Motorcyclist Association (AMA), the the National Highway Traffic Safety Administration (NHTSA) is offering law enforcement agencies funding incentives to setup checkpoints that target only motorcyclists. Based off a controversial program used by the New York State Police, the NHTSA is offering $350,000 in grants to five law enforcement agencies to run the program, which if successful could be further funded and expanded across the entire United States.
The checkpoints, which derive their legality from DUI checkpoint court rulings, primarily look for motorcyclists riding without a license or DOT approved helmet, and cite riders for aftermarket exhaust and lighting modifications. However the checkpoints fundamentally differ from DUI checkpoints in that they specifically are targeting a minority group of citizens (DUI checkpoints involve all motorists), and are doing so with no presumption that there is an increased risk to motorcyclists and the community as a whole when the checkpoints are being conducted.