The facts.
DescriptionThe whole story▼
Whoever chose the filter that came in this motorcycle had to choose one, for every ZT 350-GK sold, in every market it went to. Swept city roads and dry gravel lanes, coastal damp and construction dust, all served by a single specification. That is not a criticism of the choice; it is a description of the job. An owner is under no such constraint, and that is the entire reason a second medium exists for this airbox.
Key Features
- The fine medium for this housing: dry special nonwoven, 14 micron filtration
- Rated flow of 1,800 litres per square metre per second, below the P08's 5,050 by design
- Roughly twice the filtering surface of an ordinary performance element
- Fits the series airbox as it stands — no cutting, no adaptor, no remap, and the original panel can go back in at any time
- No oil at any stage of its life, so nothing is added to the airstream
- Washed and refitted rather than replaced; two years of warranty from the purchase date
One element for every road
A production filter is specified around an average of conditions and a set of costs, and it has to be acceptable everywhere rather than well matched anywhere. A rider knows something that specification could not: which roads this particular machine actually spends its year on. Where those roads are dusty, narrowing the specification is a sensible use of the knowledge. Where they are not, it is not, and the P08 in the same housing — 80 microns, 5,050 litres per square metre per second, the same dry washable construction — is the better-matched answer.
What you are and are not deciding
You are deciding where to sit on a line that runs from retention at one end to airflow at the other. You are not making the motorcycle stronger: a drop-in element does not add power to a standard ZT 350-GK, and the finer medium hands back flow headroom rather than releasing any. Nor is it an irreversible decision. Nothing in the airbox is altered to accept this element, so the choice can be revisited at the next service, in whichever direction the following year's riding suggests.
Care and cleaning
Use compressed air on the clean face, directed outward through the material. A greasy element wants lukewarm water and a mild detergent instead, then a rinse until the water comes off clear. Either way it dries in moving air at room temperature — heat guns, radiators and flames all destroy it — and the SM277P14 returns to the airbox dry and untouched. The maintenance sheet is filed in the Downloads tab.
Fitment & Compatibility
Listed for the Zontes ZT 350-GK, model years 2020 to 2026. The same code covers eight other Zontes entries, the oldest of them a 250 built from 2019. That makes nine lines in the catalogue served by one part number.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- Zontes ZT 250-R (2019–2021)
- Zontes ZT 310-R (2021–2023)
- Zontes ZT 310-T (2021–2023)
- Zontes ZT 310-X (2021–2023)
- Zontes ZT 350-R (2020–2026)
- Zontes ZT 350-T (2020–2026)
- Zontes ZT 350-X (2020–2026)
- Zontes ZT 350-GK (2020–2026)
- Zontes ZT 350-V (2020–2026)
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
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Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
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