The facts.
DescriptionThe whole story▼
The V100 Mandello is a motorcycle that changes with conditions: its aerodynamic deflectors deploy with speed and alter the air moving past the rider. The part in this listing does the opposite of that, and the contrast is worth holding on to. An air filter adapts to nothing. SM239S is a single decision, taken with the seat off in a garage, which then applies to every kilometre until the airbox is opened again — so the sensible way to choose it is by the air the machine breathes most of the year, not by the air it might meet on one exceptional weekend.
Key Features
- Single-layer dry polyester weave with filtration rated at 80 µm
- Rated throughput of 5,050 l/m²/sec, the standard grade for road and track use
- Woven from polyester threads of 22 µm diameter and upwards — a thread dimension, not a pore size
- Never oiled: supplied dry, run dry, refitted dry after every cleaning
- Roughly twice the filtering area of a typical performance element in the standard panel size
- Direct replacement in the series airbox, with two years of warranty from the date of purchase
One fixed setting on an adaptable machine
Because the medium cannot be varied on the move, the standard weave is the grade that fits the widest set of days. It is the middle of the range Sprint Filter builds, with a racing cloth above it that passes more air and holds back less, and two closer grades below it that do the reverse. Each step is an exchange rather than an improvement: finer means more retained and less passed, and there is no arrangement in which both improve at once. For a machine used on sealed roads with occasional dust, the standard grade is the one that asks for no compromise on either side.
What the figures are measured against
Sprint Filter publishes a comparison for this material: 93.13 per cent retention of 100-micron particles, against 76.42 per cent for a four-layer oiled cotton element. That is the useful benchmark, because oiled cotton is the alternative most riders are actually weighing. What none of it amounts to is extra power. An element in an unaltered airbox leaves a series V100 Mandello producing what the factory certified, and the real return is an intake resistance that starts low and comes back to the same value after every cleaning instead of climbing until the panel is thrown away.
Care and cleaning
SM239S is cleaned with compressed air, directed from the clean side outward so the trapped load leaves by the face it entered. When air is no longer enough, lukewarm water with a mild detergent will do it; rinse the panel thoroughly and let it dry completely in moving air. Heat is what ends this material prematurely, so no hot air gun, no radiator, no flame — and no oil or dressing before it goes back in. The Downloads tab holds the maintenance sheet.
Fitment & Compatibility
Specified for the airbox of the Moto Guzzi V100 Mandello across model years 2022 to 2026. Two machines share this element, the V100 Mandello and the Stelvio introduced in 2024, and both are listed with their 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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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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