Just ask its 10.11 second quarter-mile time. Once upon a time, the fastest motorcycles were street-legal track bikes with candy-colored full-farings and a rider triangle the size of a Dorito.

Electric bikes have yet to make a big impact when it comes to dirt bikes and motocross, but Surron is hoping to change that.

So if you're in the market, we've curated this list of the fastest sports bikes under $20K just for you, including models from all your favorite manufacturers—Japanese, European, American.