The facts.
DescriptionThe whole story▼
An engine is a sealed object with one deliberate opening in it. Oil circulates inside a closed circuit and is filtered there; fuel arrives down a closed line; coolant never meets the outside air at all. Air is the exception. It comes from wherever the motorcycle happens to be, in whatever quantity the engine asks for, and the only thing between the road surface and the inlet tract is a single panel in a plastic box. On an SRK 600 Pro of 2025 or 2026 that panel is the entire boundary, which is a fair reason to specify it above the minimum.
Key Features
- Dry special nonwoven rated at 14 microns, with a flow rating of 1,800 l/m²/sec
- Depth filtration through the thickness of a fibre mat rather than at a flat face
- Drops into the standard SRK 600 Pro airbox: no cutting, no adaptor, no remap
- Roughly twice the filtering area of an ordinary performance element
- Never oiled, so there is nothing on it that could be carried downstream
- Washable and reusable, warranted for two years from the date of purchase
One component, the whole boundary
Everything else on the maintenance schedule is a matter of visible condition: pads wear down, fluid darkens, a chain stretches, and each of those announces itself to somebody paying attention. The air path announces nothing. Whatever gets past the panel is downstream before anyone could have known about it, and the record it leaves is spread thinly across components nobody opens. That is the argument for choosing the medium deliberately instead of accepting whichever panel is nearest to hand, and for looking into the box at every service rather than at the interval printed in the book.
Specifying it upwards, and the bill for that
The bill is flow, stated openly: 1,800 l/m²/sec here, against 5,050 for the woven element made for the same housing. About a third, surrendered on purpose in return for holding smaller material. That is the shape of the trade in every filtration medium, and there is no version of it where retention arrives free. Nor does any of it appear as performance. A slot-in element leaves a standard SRK 600 Pro exactly as strong as it was, and a fine one uses up intake headroom rather than releasing any — the whole of the gain is in what never gets past.
Care and cleaning
Regeneration is done with compressed air applied to the clean side and worked outward, so the collected material retraces its route out of the mat. For a deposit that is oily rather than powdery, lukewarm water and a small quantity of mild detergent will free it; rinse until the water carries nothing away. Drying takes moving air and nothing warmer — no radiator, no hot-air gun, no naked flame — and the PM209P14 is fitted back dry and untreated. Sprint Filter's maintenance sheet is in the Downloads tab.
Fitment & Compatibility
Cut for the airbox of the QJ Motor SRK 600 Pro as built in 2025 and 2026, one element per machine. This code covers seven models in all, under both the QJ Motor and Benelli badges; the complete list is in the Fitment tab.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- Benelli Leoncino Trail (2017–2026)
- Benelli 502 C Cruiser (2019–2026)
- Benelli Tornado (2025–2026)
- QJ Motor SRT 550 SX (2023–2025)
- QJ Motor SRT 600 SX (2024–2026)
- QJ Motor SRK 600 Pro (2025–2026)
- QJ Motor SRK 600 RS (2025–2026)
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
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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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