This is a carburetor restrictor for Novarossi engines with a diameter of 6.5mm. This will work with any Novarossi brand engine including the Top and Rex lines. Some of these may be plastic and some of them may be aluminum. There is no real difference between the plastic and aluminum versions of the restrictors.
Note: Picture for illustrative purposes only.
This product was added to our catalog on May 19, 2005