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Doppler Air Filter "Venturi" red body/black foam

Doppler Item no.: CGN458372

Doppler Air Filter "Venturi" red body/black foam

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Data Sheet


"New Style" air filters by Doppler, redesigned version of Doppler's tried and tested Venturi air systems with new shape and cover. As with their predecessors, the stand-out feature and benefit of this system is the use of the so-called Venturi effect.

The diameter of the intake area is tapered down gradually to reduce the initial suction required to start air flow and increase air flow velocity. This is very helpful in 70cc engines where suction is not very high to begin with. The air flow is directed into a resonance chamber via a Venturi insert, this resonance chamber has the combined advantage of reducing intake noise and fuel vibration - the carburetor will run more smoothly and can be adjusted a lot easier.

The Doppler Air Filter "Venturi" is suitable for 12mm - 21mm Dell'Orto and 12mm - 24mm Arreche carburetors; it comes with a second insert for 19-21mm carburetors.

Available in several colours.

  • Red box / black foam

Data Sheet

Name Doppler Air Filter "Venturi" red body/black foam
Item No. CGN458372
Brand Doppler
Air filter connection 39mm

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