ProTek RC Aluminum "Elliptical" Samurai 321B Carburetor Restrictor (6.5mm)

The ProTek RC Aluminum "Elliptical" Samurai 321B Carburetor Restrictor uses a 6.5mm oval venturi design to adjust airflow into the engine. Its progressive power delivery is designed to feel smooth at the bottom end and increase as RPMs rise, while helping improve fuel mileage.

Changing venturi size lets you fine-tune engine power delivery and run time for different track conditions. This restrictor is also compatible with OS V-Spec, Novarossi and RB carburetors.

Product Details

• Part number: PTK-2523
• Material: Aluminum
• Design: Elliptical
• Restrictor diameter: 6.5mm
• Application: Samurai 321B carburetor
• Also compatible with: OS V-Spec, Novarossi and RB carburetors