The facts.
DescriptionThe whole story▼
Dust is a word that covers two very different things. On an unsurfaced road it means mineral grit lifted by wheels ahead, coarse, dry and arriving in clouds. In city and motorway traffic it means something else entirely: brake and tyre particulate, soot, and a damp road film that behaves more like a paste than a powder. SM239T12 is rated for the first kind, and the label on it says so. A V100 Mandello that spends its life in the second kind is not the machine this grade was drawn for, and it is fairer to say that here than to let the specification imply otherwise.
Key Features
- Polyester special nonwoven, dry, with filtration rated at 7 µm
- Rated throughput of 560 l/m²/sec — the closest and slowest grade Sprint Filter builds
- No oil in the medium and none to be added, at delivery or at any cleaning
- About twice the working area of a typical performance element, which is what makes so dense a material usable as a panel
- Fits the standard airbox in the factory position, without cutting and without a remap
- Cleaned and reused rather than replaced, with two years of warranty from the date of purchase
Naming the conditions honestly
The case for the closest grade is built on air that carries a lot of fine solid matter over a sustained period: gravel roads, agricultural traffic in a dry season, construction diversions, unpaved approaches taken day after day. A Mandello used that way will find the medium doing exactly what its rating promises. A Mandello used on sealed roads, however heavy the traffic, will meet a fraction the standard weave already handles, and the closer cloth will simply cost throughput without a matching return.
The exchange in both directions
Closer means more retained and less passed — one trade, never a ranking, and a closer medium also loads sooner for the same volume of air, which shortens rather than extends the interval between cleanings. Nothing in that arrangement produces power: an element inside an unmodified airbox leaves a series motorcycle making what it always made. The dependable benefit is an intake resistance that starts low and is fully restored by cleaning, on a panel that stays with the machine instead of being consumed by it.
Care and cleaning
Compressed air is the right first step and direction decides whether it works: blow from the clean face outward so the load is driven back out of the nonwoven rather than further into it. For a load that resists air, lukewarm water with a mild detergent is correct; rinse thoroughly, then allow the panel to dry completely in moving air. Never dry it with heat or a flame and never oil it — it is refitted dry. The maintenance sheet sits in the Downloads tab.
Fitment & Compatibility
Specified for the airbox of the Moto Guzzi V100 Mandello, model years 2022 to 2026. In this medium the number covers two machines, the V100 Mandello and the Stelvio from 2024 onwards, each listed with its model years in the Fitment tab.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- Moto Guzzi V100 Mandello (2022–2026)
- Moto Guzzi Stelvio (2024–2026)
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