O.S. Metering Needle (21M) R21GT (OSMG7007)

The O.S. Metering Needle (21M) R21GT is an essential component for tuning and fine-tuning the performance of O.S. engines. This metering needle is specifically designed to deliver precise fuel flow adjustments, ensuring optimal engine performance. The quality craftsmanship and materials used in this part contribute to its durability and reliability, making it a great choice for both hobbyists and professionals alike. Whether you're adjusting for altitude or optimizing performance for different conditions, having the right metering needle is crucial for the effective operation of your engine.