The facts.
DescriptionThe whole story▼
A supermoto is ridden differently from the sports bike it shares an engine family with: shorter bursts, less time in the upper gears, and a rider sitting in the airstream instead of behind a screen. None of that alters what the airbox needs, but it does change how often the machine meets dust. For the Dorsoduro 900 Sprint Filter lists exactly one medium, PM108S in the P08 weave, so the choice here is not between filters. It is between a panel that gets thrown away and a cloth that gets washed.
Key Features
- Single dry layer of woven polyester, supplied without oil and never oiled in service
- An 80 µm weave rated at 5,050 l/m²/sec, made for road and track use
- 93.13 % of 100-micron particles retained under measurement; oiled four-layer cotton gave 76.42 %
- About double the filtering cloth of a typical performance element within the standard frame
- Direct exchange for the original paper panel, with no airbox work and no remap
- Washable and reusable for the life of the machine, two years of warranty from purchase
One medium, and what that settles
Some airboxes in this range are served by three or four different weaves, and the buyer has to work out where the bike really goes before choosing one. This is not among them. Sprint Filter publishes a single option for the Dorsoduro 900, which removes the question: the P08 is the specification, and the balance between fineness and flow has already been struck in favour of ordinary road use. That suits the machine, which is a road motorcycle whatever its styling implies.
Dust, and why dry matters here
Ride a supermoto and sooner or later you follow a gravel road to something better. The property that counts there is that the P08 is dry. No oil can be washed out of it by rain and none has to be put back afterwards, so a dirty filter becomes a cleaning job instead of a re-treatment job. The retention figures above are what the cloth achieves unaided. What it will not achieve is more power: an element in an unmodified airbox does not make a series motorcycle noticeably stronger, and this one is no exception.
Care and cleaning
PM108S is cleaned with compressed air from the clean side outward, so the material it caught is pushed back along the path it arrived by rather than driven further in. Move the nozzle over the whole surface. When the cloth stays discoloured after that, lukewarm water and a mild detergent will finish the job, and it should be rinsed until the water leaves it clear. Drying is done in moving air only, never with heat, a radiator or a flame, and the element is fitted dry with nothing sprayed on it. The maintenance sheet is under Downloads.
Fitment & Compatibility
Specified for the Aprilia Dorsoduro 900 of 2017 to 2019. This housing is shared more widely than the model name suggests: six Aprilia machines are covered in total, among them the Dorsoduro 750 and the Dorsoduro Factory, the Shiver 750 and the Shiver GT, and the Shiver 900. Model years for each are listed in the Fitment tab.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- Aprilia Dorsoduro 750 (2008–2014)
- Aprilia Dorsoduro Factory (2010–2013)
- Aprilia Shiver 750 (2007–2017)
- Aprilia Shiver GT (2009)
- Aprilia Dorsoduro 900 (2017–2019)
- Aprilia Shiver 900 (2019–2020)
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