CD70 Euro-II — Air Filter (New Model / “Euro II” element)

The CD70 Euro-II air filter labelled “New Model” refers to the updated air-cleaning element designed to fit the Euro-II (or later) emissions / intake layout used on newer CD70-style engines. As emissions regulations and carburetion designs evolved, air-box geometry and intake snorkels changed slightly; manufacturers and OEM parts suppliers responded with revised filter elements and housings to match these changes. The Euro-II air filter typically features improved pleat geometry, higher-quality paper media, and sometimes improved sealing elements that reduce bypass under higher suction loads. The result is better filtration performance and a more stable air-fuel mixture under real-world conditions — helping meet emission targets and improving throttle response.

Owners upgrading from older filter types to the Euro-II “new model” should ensure the element matches the air-box shape and gasket/seal design. Using a mismatched filter that does not seat properly can allow unfiltered air past the edges, causing premature engine wear and incorrect fuel metering. Many Euro-II filters also include slightly different end caps or a taller/shorter height to accommodate the updated housing.

As an aftermarket or OEM replacement, the Euro-II element is important for modernized CD70 models. Dealers should stock both the older “classic” filter and the Euro-II option, and mark compatibility clearly by model-year and engine layout. Mechanics performing emissions-related maintenance or carburetor tuning will often suggest the Euro-II filter to owners of new-model CD70 bikes to ensure optimal performance and compliance.