STM (STM Racing) is a manufacturer known for producing high-performance motorcycle components, particularly in the realm of clutches and engine accessories. The brand focuses on delivering innovative solutions designed to enhance bike performance, durability, and rider control. STM's products, including slipper clutches and billet components, are engineered with precision and tested in competitive environments, making them a trusted choice among both professional racers and enthusiasts. With a commitment to quality and performance, STM continues to be a key player in the motorcycle industry.