IRZ carb rubber intake spacer between carb and cylinder.

For small fin SDR, Pioneer and MAR barrel. NOTE: Amal equiped SDRs use spigot style manifold part # OW-SIM-001

Check your SDR before ordering.

Late model MAR and Explorers use spigot style manifold when equiped with Amal carbs -Pioneer Cycle does not currently offer this part. Check your bike before ordering.