The facts.
DescriptionThe whole story▼
Every other Sprint Filter element listed for an MV Agusta triple is a service item: lift the old panel out, slide the new one in, close the box. R135S-SBK is not one of those. The price list flags it as a big air filter that requires repositioning, and the flag is accurate — the element is larger than the standard aperture will take, so the airbox has to be reworked before it will accept it. That single fact governs the rest of this page, including who ought to be reading it.
Key Features
- WorldSBK-specification assembly built on a carbon fibre frame, not a replacement panel
- Fitting requires modification: the housing is reworked and the element repositioned
- Dry P08 polyester at 80 µm and a rated 5,050 l/m²/sec, never oiled when new or after a wash
- Physically larger than the element it displaces, which is what the extra work buys
- Regenerated with compressed air and refitted, rather than bought again
- Two years of warranty from purchase; specified to last the life of the motorcycle
What the word repositioning is carrying
It means work on the housing, not a five-minute swap in a car park. The standard element's mounting is not where this one sits, so the airbox has to be opened up and the filter located differently — a job with tools and time attached to it. It is not undone by sliding the original panel back in afterwards either, because what was altered stays altered. And it takes a road-registered F3 out of the intake arrangement it left the factory with. None of it makes a standard F3 675 noticeably quicker; an element inside an airbox does not do that, whatever it costs.
A closed window, and a part number that is not closed
The 675 was catalogued from 2012 to 2021 and that is the end of it — there will be no later revision of the machine to correct a decision taken now. This is also the more serious commitment of the two ways to fit a Sprint Filter here: it runs to roughly four times the standard road element for the same bike, and most of that is construction rather than cloth. The number itself carries on, covering the F3 800 through 2026, so availability does not hinge on the 675's production run. Write down what was done to the housing. A later owner cannot see it; the bodywork hides it completely.
Care and cleaning
R135S-SBK is serviced dry. Compressed air on the clean face, directed outward, so that what the cloth stopped leaves along the path it arrived on; hold the assembly by its carbon frame rather than by the medium. When air alone is not enough, lukewarm water with a mild washing-up detergent and a rinse until it runs clear finishes the job. Then it dries in open air only — a heat gun, a radiator or a flame is what destroys polyester, and this is not a step to hurry. It goes back in dry, with nothing sprayed or wiped onto it. The maintenance sheet sits in the Downloads tab.
Fitment & Compatibility
Specified against the airbox of the MV Agusta F3 675 built from 2012 to 2021, once that airbox has been modified to accept it. The same kit is listed for the F3 800 of 2012 to 2026, two machines in total.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- MV Agusta F3 675 (2012–2021)
- MV Agusta F3 800 (2012–2026)
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