In the 37 years since the release of the first SR model in 1978, the series has maintained the same basic structure and specifications and has continued to be a long seller with a devoted following of fans. It features a simple and beautiful body design and is powered by a big single-cylinder engine that lets the rider enjoy a feeling of abundant torque and power pulse. The muffler on the current model uses a nano-film coating that gives it a jewel-like luster.