The facts.
DescriptionThe whole story▼
Everything on the intake side of a 150 cm³ single is small, and the air filter is no exception. The airbox sits where the frame and the bodywork leave room for it, and the element inside is a fraction of the size of anything on a large machine. That is the whole of the difficulty, because dust does not arrive in proportion to displacement: a season's worth of it spread across a small element sits far more densely than the same dust would on a big one, which is why small filters reach the end of their useful life sooner than their owners expect. The Sprint Filter P08 answers that with geometry rather than with a claim, carrying roughly double the filtering surface of other performance filters in the same space.
Key Features
- Dry woven polyester, never oiled, with no film to soak in or travel downstream
- P08 medium: 80 microns of filtration at an airflow figure of 5,050 l/m²/sec
- Polyester threads from ø 22 microns, woven to a calibrated aperture
- Roughly double the filtering surface of other performance filters
- Drops into the standard airbox: no modification, no remap
- Washable and reusable, with a two-year warranty from the date of purchase
Why surface area is the scarce quantity here
Loading is a question of density rather than of total dirt. Twice the area holds the same season's dust at half the concentration, so the pressure drop across the element climbs more slowly. On a small machine that matters more than it would elsewhere, because the airbox volume is fixed by the frame and there is no room for a physically larger filter: the area has to come from how the medium is arranged, not from making the part bigger. A single woven layer helps: it does not need to be thick to do its work, so almost all of the space it occupies is working surface.
Cleaned back to where it started
The second half of the argument is that the area is recoverable. Compressed air from the clean side lifts trapped dust off a woven polyester surface and returns the element close to the condition it left the factory in. Paper cannot offer that at any price: it closes up progressively and the only remedy is a new one. Sprint Filter designs the P08 to last the life of the motorcycle, so the same element goes back in year after year. What it will not do is make a standard 150 measurably faster, because the standard filter was never the thing limiting this engine.
Care and cleaning
Blow PM183S through from the clean side outwards with compressed air; that is the routine service. When a hard season has earned it, wash in lukewarm water with a little mild detergent, rinse until the water runs clear and let it dry completely in open air, never with heat and never near a flame. It is refitted dry, with no oiling step at any point. The Sprint Filter maintenance sheet is in the Downloads tab.
Fitment & Compatibility
Made for the Honda FS150 from 2016 to 2026. The same PM183S element covers five machines built around this airbox: the FS150, RS150R, Sonic 150R, Supra GTR 150 and Winner 150, the Sonic 150R from 2015. The list is in the Fitment tab.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- Honda FS150 (2016–2026)
- Honda RS150R (2016–2026)
- Honda Sonic 150R (2015–2026)
- Honda Supra GTR 150 (2016–2026)
- Honda Winner 150 (2016–2026)
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