The facts.
DescriptionThe whole story▼
On a naked bike you can form an opinion about most things simply by looking at them. On an RC 125 you form it after removing fasteners, which is why everything behind the bodywork gets inspected on a schedule instead of on a hunch, and why the air filter tends to be dealt with by the calendar rather than by its actual state. The Sprint Filter P08 changes what happens once the panels are off: the element comes out, gets cleaned and goes back in during the same sitting.
Key Features
- Dry woven polyester, one layer, rated 80 µm with a flow of 5,050 l/m²/sec
- Serviced with an air line and refitted immediately — no soaking, no drying time, no oil
- Direct replacement for the paper panel in the standard RC airbox
- Filtering area roughly double that of a typical performance element
- Measured retention 93.13 % at 100 microns, where oiled cotton in four layers gives 76.42 %
- Reusable for the service life of the motorcycle; warranty runs two years from the purchase date
Panels off once, not twice
An oiled element turns a filter service into a two-visit job: strip it, wash it, wait for it to dry, oil it, and only then can the bodywork go back on. A dry medium removes the waiting entirely. Blow it through, look at it, put it back — the fairing returns the same afternoon it came off, and the temptation to leave the job until next time never gets a chance to form. On a machine where access is the expensive part of any job, that matters more than any figure printed on a box.
What it will not do to an A1 machine
It will not make the RC 125 faster. The limit here is a licence category and the way the engine was built to meet it, not the size of the hole the air comes through, and any part sold on that basis is being oversold. What a replacement element genuinely offers is a lower starting restriction and one that does not creep upward across a winter of short, damp journeys, because you can return it to where it started.
Care and cleaning
Air line against the clean side, blowing outward; a minute of that removes most of what a season collects. Anything stubborn comes out with warm water and a drop of mild washing-up liquid, rinsed through until the water is clear, then left in moving air until it is genuinely dry throughout. Never use heat to hurry that along, and never treat the polyester with anything afterwards. Sprint Filter's illustrated sheet for the PM145S is in the Downloads tab.
Fitment & Compatibility
The P08 for the KTM RC 125, 2014 to 2019. The same element number covers nine machines across KTM's small-capacity family, faired and unfaired alike, which is why the year matters as much as the name when you order.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- KTM Duke 125 (2011–2016)
- KTM RC 125 (2014–2019)
- KTM Duke 200 (2012–2019)
- KTM RC 200 (2014–2018)
- KTM Duke 250 (2015–2016)
- KTM RC 250 (2015–2017)
- KTM Duke 390 (2013–2016)
- KTM RC 390 (2014–2018)
- KTM RC 390R (2018–2021)
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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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Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
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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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