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Air filter

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Product type
Air filter Airbox Hose clamp Air filter sleeve
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
25 degree 30 degree 45 degree 90 degree long short straight
Colour
Black Blue Carbon Chrome Green Grey Orange Red Silver White Yellow
Brand
Doppler Koso Malossi MotoForce MotoForce Racing Polini Stage6 Standard Parts STR8
Price
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35mm
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MotoForce Racing
Air Filter Motoforce Racing 35mm PHVA/PHBG blue
Article no.: MF18.00106

Air Filter Motoforce Racing 35mm PHVA/PHBG blue

18,00 €
In stock soon
RRP
20,00 €
-10% Discount
Standard Parts
Air Filter extra flat 28 - 44mm black / red
Article no.: A114220F

Air Filter extra flat 28 - 44mm black / red

36,00 €
In stock soon
Doppler
Air Filter Doppler Venturi 45° 28/35mm PHVA/PHBN red
Article no.: CGN458372

Air Filter Doppler Venturi 45° 28/35mm PHVA/PHBN red

33,00 €
In stock soon
Standard Parts
Airbox to Carburetor Boot Motorhispania Furia / RX
Article no.: MF18.00252

Airbox to Carburetor Boot Motorhispania Furia / RX

30,50 €
Currently not in stock
Standard Parts
Airbox to Carb Boot CPI SX / SM
Article no.: MF18.00251

Airbox to Carb Boot CPI SX / SM

30,50 €
Currently not in stock
31,50 €
-3% Discount
Polini
Air Filter Polini Big Evolution 28 - 55mm straight
Article no.: P203.0160

Air Filter Polini Big Evolution 28 - 55mm straight

36,50 €
Currently not in stock
RRP
40,00 €
-9% Discount
Standard Parts
Air Filter type KN 28/35mm 90° PHVA/PHBN blue / red
Article no.: CGN482501

Air Filter type KN 28/35mm 90° PHVA/PHBN blue / red

8,70 €
Currently not in stock
Doppler
Luftfilter Doppler Venturi 45° 28/35mm PHVA/PHBN white
Article no.: CGN473483

Luftfilter Doppler Venturi 45° 28/35mm PHVA/PHBN white

33,00 €
Currently not in stock
Doppler
Air Filter Box Doppler Air Box 28 / 35mm silver
Article no.: CGN468871

Air Filter Box Doppler Air Box 28 / 35mm silver

26,00 €
Currently not in stock
Standard Parts
Air Filter Adapter 90° angle d. 28/35
Article no.: CGN440073

Air Filter Adapter 90° angle d. 28/35

4,70 €
Currently not in stock
4,90 €
-4% Discount
Standard Parts
Air Filter KN type 28/35mm PHVA /PHBN 0°-90° black / green
Article no.: CGN480756

Air Filter KN type 28/35mm PHVA /PHBN 0°-90° black / green

20,50 €
Currently not in stock
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
Malossi
Air Filter Malossi E14 35mm PHVA/PHBG straight
Article no.: M0411451

Air Filter Malossi E14 35mm PHVA/PHBG straight

37,50 €
Currently not in stock
RRP
38,00 €
-1% Discount
Polini
Air Filter Polini Evolution oval 28-55mm black / blue
Article no.: P203.0147

Air Filter Polini Evolution oval 28-55mm black / blue

37,00 €
Currently not in stock
RRP
38,00 €
-3% Discount
Doppler
Air Filter Doppler Venturi 28/35mm PHVA/PHBN black
Article no.: CGN324521

Air Filter Doppler Venturi 28/35mm PHVA/PHBN black

30,00 €
Currently not in stock
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12

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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