Introducing the BILLETRON™ PRO-SERIES 38: A groundbreaking carburetor that redefines two-stroke performance for 125cc-299cc motors. With innovative design and precise engineering, experience unprecedented torque, horsepower, and rideability gains. The PRO SERIES boasts tailored air flow, velocity dynamics, and three adjustable fuel circuits for optimal coordination. Instant fuel activation and quick screw adjustments make it the most powerful choice available. Take charge of your two-stroke's performance and adapt effortlessly to upgrades.