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Air filter

(11 products)
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617
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11
617
products
found
Product type
Air filter Bellmouth
Air filter connection
16mm 19mm 20mm 25mm 28mm 32mm 34mm 35mm 37mm 38mm 39mm 40mm 42mm 43mm 44mm 46mm 48mm 49mm 50mm 51mm 52,5mm 52mm 55mm 56mm 57mm 60mm 61mm 62mm 70mm
Angle
30 degree 45 degree 90 degree straight
Colour
Black Blue
Brand
Dell'Orto Polini
Price
Reset filters
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Your filters:
25mm 37mm 39mm
Reset filters
Polini
Air Filter Polini Air Box 135x80mm 37/38mm PHBG/PHBL 90°
Article no.: P203.0094
12

Air Filter Polini Air Box 135x80mm 37/38mm PHBG/PHBL 90°

21,00 €
In stock
RRP
22,00 €
-5% Discount
Polini
Air Filter Polini 39mm straight
Article no.: P203.0038

Air Filter Polini 39mm straight

32,00 €
In stock
RRP
42,00 €
-24% Discount
Sale
Polini
Air Filter Polini Air Box 125x65mm 37/38mm PHBG/PHBL 90°
Article no.: P203.0096
12

Air Filter Polini Air Box 125x65mm 37/38mm PHBG/PHBL 90°

20,00 €
Currently not in stock
RRP
21,00 €
-5% Discount
Polini
Air Filter with adapters Polini Big Evolution 25 - 55mm
Article no.: P203.0175

Air Filter with adapters Polini Big Evolution 25 - 55mm

35,00 €
Currently not in stock
RRP
41,00 €
-15% Discount
Polini
Air Filter Polini Evolution straight 39mm PHBG black
Article no.: P203.0146
7

Air Filter Polini Evolution straight 39mm PHBG black

36,50 €
Currently not in stock
RRP
37,00 €
-1% Discount
Polini
Luftfilter Polini Air Box 115x80mm 37/38mm PHBG/PHBL 30°
Article no.: P203.0091
15

Luftfilter Polini Air Box 115x80mm 37/38mm PHBG/PHBL 30°

20,00 €
Currently not in stock
RRP
22,00 €
-9% Discount
Polini
Air Filter Polini Air Box 100x80mm 37/38mm PHBG/PHBL straight
Article no.: P203.0081
2

Air Filter Polini Air Box 100x80mm 37/38mm PHBG/PHBL straight

21,50 €
Currently not in stock
RRP
22,00 €
-2% Discount
Polini
Air Filter Polini 39mm Vespa PX 125-200 / P200E
Article no.: P203.0158

Air Filter Polini 39mm Vespa PX 125-200 / P200E

26,00 €
Currently not in stock
Dell'Orto
Air Filter Adapter Dellorto PHBG (37mm)
Article no.: L-DEL1648200-82

Air Filter Adapter Dellorto PHBG (37mm)

15,50 €
Currently not in stock
Polini
Air Filter Polini Air Box 135x80mm 37mm PHBG 90°
Article no.: P203.0183

Air Filter Polini Air Box 135x80mm 37mm PHBG 90°

22,50 €
Currently not in stock
RRP
26,00 €
-13% Discount
Polini
Air Filter Polini Air Box 115x80mm 37/38mm PHBG/PHBL 30° blue
Article no.: P203.0180

Air Filter Polini Air Box 115x80mm 37/38mm PHBG/PHBL 30° blue

22,50 €
Currently not in stock
RRP
26,00 €
-13% Discount

Air filters: clean air for maximum performance

The air filter ensures that the engine draws in clean air, as the entry of foreign objects seriously compromises reliability. Regardless of the vehicle type, clean air is an indispensable requirement. Furthermore, an overly restricted airflow harms performance. This is why manufacturers and tuners often optimize the filter system to achieve the best compromise between flow and filtration.

Optimized performance with open air filters

Racing, Sport, or Original?

In general, the air volume must be increased as engine performance or displacement increases.

For 50cc motorcycles and scooters, the original airbox is designed for limited power only. Therefore, for larger cylinder kits, it is recommended to use a racing air filter that attaches directly to the carburetor, or a larger airbox such as kart-style airboxes.
If you do not increase the displacement, you can still improve filtration by replacing the original air filter with a pod air filter, usually made of dual-layer foam with two different densities.
For motocross, enduro, or general off-road use, it is better to keep a closed airbox, as these machines are used in extreme conditions like dust or mud. The filter should therefore be protected as much as possible against splash water, mud, and dust. Usually, the volume of the original airbox is sufficient for these engines, but the airflow can be further improved using Powerflow kits from brands like Twin Air or perforated airbox covers.

Important note: If you upgrade from a standard air filter element in the airbox to an open air filter, you must readjust your carburetor with different jets.

Air filter maintenance

Improving airflow does little good if you do not take the time to maintain your equipment. It is important to clean or replace the air filter as often as necessary, which also applies to vehicles that have not been tuned.

For motorcycles and scooters with an original airbox, you can find the maintenance intervals in the owner's manual.
With intensive use or a filter upgrade, you should be even more vigilant and regularly check the condition of your filter. A dirty filter cannot provide adequate airflow, which leads to a loss of performance.

For off-road use, you should check the condition of the air filter after every ride. On a very dusty motocross day, it is even sensible to have a spare filter ready for a mid-day swap.

It is best to use special air filter cleaner and an air filter oil that protects the foam from water and fine particles.

Air filters in our shop

We offer various high-quality air filter brands on our site, such as Polini, Moose Racing, Twin Air, Top Performance, YCF, Motoforce, STR8, Stage6, and many others.

In addition to engine performance, you can also replace your filter for aesthetic reasons. That is why we also carry numerous custom air filters with original designs, unique shapes, and in many colors.

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