The facts.
DescriptionThe whole story▼
For this airbox the range stops at 14 microns. There is no 7-micron mat listed for the 820 RR, which makes PM291P14 the fine end rather than a middle step — and that changes how the decision should be framed. The question is not how far to go, but whether to move off the standard element at all.
Key Features
- Dry special nonwoven filtering at 14 microns, rated at 1,800 l/m²/sec
- Holds its load through the depth of the mat rather than at the surface alone
- Dry throughout: never oiled, before fitting or after washing
- Direct fit in the unmodified 820 RR airbox — no adapter, no remap
- The finer of the two everyday media listed for this airbox
- Washable and reusable, with two years of warranty from the purchase date
A short ladder, and where this rung sits
For everyday riding this airbox is offered two media: the standard weave at 5,050 l/m²/sec and this mat at 1,800. Above them the catalogue lists a racing weave, which is a different proposition again — coarser in aperture, far higher in rated flow, and drawn for a use this machine is unlikely to see in its first years. Between the two that remain, the step is large enough to matter and small enough that neither answer is extreme: riders who stay on sealed roads have theirs in the standard element, riders whose summer includes gravel, farm tracks or the dust of other vehicles have theirs here.
What the trade actually costs
Roughly two thirds of the rated flow, in exchange for holding a great deal more of what is suspended in dry air. Both halves apply every day, including the clean ones — a finer medium is not the better medium, only the one drawn for harder air. And neither of them makes the engine stronger: in an unmodified airbox this element leaves a standard 820 RR exactly as strong as it was. What it offers is a steadier intake restriction across the interval and a panel serviced rather than replaced.
Care and cleaning
Clean the PM291P14 with compressed air on the clean face, worked outwards, and give it more time than a woven panel needs — depth-loaded material releases gradually. When air is no longer enough, lukewarm water with a mild detergent finishes the job; rinse until the runoff is clear. Dry it in moving air at room temperature and by no other means, because heat destroys a nonwoven invisibly. Refit dry, with nothing sprayed on. Both panels for this airbox are cleaned the same way, so keeping the standard element as a spare costs nothing but shelf space. The maintenance sheet is in the Downloads tab.
Fitment & Compatibility
Made for the ZXMoto 820 RR of 2025–2026 and fitted in the series airbox without modification. The same code is listed for the 820R naked of the same years. Confirm your build year in the Fitment tab.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- ZXMoto 820R (2025–2026)
- ZXMoto 820 RR (2025–2026)
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