【TWIN AIR】Air Filter Review

It is still in use after 2 years with little deterioration.

It was used in a Dirt-free environment.
Thanks to this, the Large size is usable without any deterioration.
However, the flexibility of the Material has been reduced in a certain way, so I repurchased it as Spare. View detail

TWIN AIR for your peace of mind

I bought a used D Tracker (250SB) and the filter in it was falling apart, so I replaced it with this Twin air filter for customization purposes as well. The filter is packaged in a Zip-lock like bag, and the explanation is written in English version on the front of the bag.
The Large size is a little smaller than the Filter Frame, and the two-layer structure described in the product description can be recognized by the color of the Filter.

As for the feeling of use, there were times before when the Engine was unsteady in blowing, but after the replacement, I feel that it has improved.

Since the filter itself is small, we recommend applying SealGrease to the edge of the filter when installing it.

*The product does not come with Oil beforehand, so we recommend buying Oil to go along with it. View detail

Cool!

I don't know the effect, but it looks lighter than OEM and looks like it would have less resistance to suction. View detail

Stable twin air

I use Twin air Filter every time.
There is nothing bad about it, there is no Trouble and it is stable. View detail

Cost-effective. We make it compact.

2023.As of June, the OEM Product is less than 7,000 yen and the TwinAir is just over 4,000 yen. Other Brand Product is cheaper, perhaps because it is no longer in print.
I have purchased TwinAir air filters 3.4 times now, including other models.
Mounting Rubber for mounting is included.
TwinAir's Sticker comes as a bonus.

Unlike the OEM product, which has a square corner on the outside corner, this product has rounded corners and is generally smaller in size.
Of course, the small size does not impede the installation. It can be installed as usual. In fact, it is a good impression because Dust does not adhere to the walls of the Air cleanerBox when inserting and removing it.

Unlike the OEM Product's slightly harder and coarser Sponge, the white surface with the logo is made of a softer, denser, and chewier Sponge. The inner backside is made of a slightly sugar-crystal, scuffier Sponge.

I didn't notice any change in the intake performance of either OEM Product or TwinAir that would require a Setting change in my case.

For maintenance, I use kerosene to lightly clean the oil and then wash with diluted dishwashing detergent.

It is durable, but there are some things to note and things I have noticed over the years of using several of them. Below is a comparison with OEM Product.

I have the impression that the adhesive that glues the sponges together is not as strong as the OEM product. Therefore, it is recommended not to clean the Sponge with kerosene many times in one maintenance. The white sponge on the outside and the black sponge on the back side came off once.

Secondly, it is better not to squeeze harder when cleaning than the OEM product, as the Sponge is softer than the OEM product and will become squishy and deteriorate faster if squeezed harder.
However, the adhesive strength of Sponge is also relatively weak, so moisture must be dried thoroughly.
In my case, I shake it gently by hand to drain water, apply a weak air blow, or wrap it gently with a Paper towel to absorb water. After that, I dry it in the shade enough to let it dry, apply Oil, and dry it in the shade again to let the Oil's water evaporate before putting it on.

If the above precautions are taken, the product is a little inferior to OEM products, but it shows reasonable durability.

Poor air cleaner performance can cause clogging of the carburetor and injector, as well as unexpectedly introducing wounds around the piston. It is also common for the filter itself to deteriorate and fall apart, becoming the cause of troublemaking itself, so it is best not to use cheap products with unclear filter capabilities.

In this respect, TwinAir is a product that has been around for a long time, so it is Brand-oriented.

However, I personally think that the most important thing is frequent maintenance. View detail