The APICO Trial Air Screw DELLORTO simplifies the process of adjusting the air-fuel mixture, making it exceptionally easy to fine-tune your carburetor for optimal performance. This precision-engineered air screw is designed to fit DELLORTO carburetors perfectly, ensuring seamless integration with your trial bike's engine. Available in various colors, it allows you to add a touch of personalization to your bike while ensuring reliable and consistent air-fuel mixture adjustments. Manufactured by APICO, a renowned name in the world of motorcycle components, this air screw is built to withstand the rigors of off-road riding, offering durability and precision in every ride.