Metering Rods | PRO-SERIES, BILLETRON, and Legacy Carbs

Lectron metering rods are precision-machined to tolerances of just 0.0003" - thinner than a human hair - for exceptional accuracy and consistency. Unlike traditional jetting systems, Lectron’s metering rod technology automatically compensates for changes in elevation, temperature, and humidity, eliminating the need for jet swaps and constant tuning adjustments. From sea-level dunes to high-altitude singletrack, your bike delivers clean throttle response, reliable starting, and consistent performance in virtually any riding condition. Each metering rod precisely controls fuel delivery throughout the entire throttle range and is carefully matched to the carburetor bore diameter to ensure optimal fueling and repeatable tuning results.