Sprint Filter P08 F1-85 Air Filter for Racing – Triumph Speed Triple RR (2021–2026) SM221S F1-85

A more open filter medium has a cost, and it is not paid in a single event. It is paid in distance: the fine fraction an 85 µm weave lets past arrives grain by grain across tens of thousands of kilometres and eventually shows up as wear rather than as a fault. That makes annual mileage — not the medium's reputation, not the machine's output — the number that decides whether the SM221S F1-85 belongs on a Speed Triple 1200 RR. A bike covering a few thousand kilometres a season, most of them on clean surfaces, is exposed to a small fraction of what a year-round commuter meets, and the trade lands very differently as a result.

Key Features

• Woven polyester in one dry layer, aperture 85 µm, no impregnation of any kind
• Flow rated 15,000 l/m²/sec, the most open specification offered for this airbox
• About twice the filtering surface of other performance filters, series airbox retained
• Nothing oiled means nothing to migrate downstream when the element is warm
• Straight replacement for the paper panel, without modification and without remapping
• Designed to last as long as the motorcycle; warranty of two years from purchase

Working out your own exposure

Take the kilometres you genuinely ride in a year, then take off the ones covered on clean, fast roads in dry weather. What is left is the exposure that a more open weave is asking you to accept. On a half-faired flagship used for weekend rides and the occasional circuit day, the remainder is usually small — and small exposure is exactly the condition under which choosing throughput over retention is defensible. On a machine ridden through every winter it is not, and the standard element is then the sounder choice.

What the element gives in exchange

An intake resistance that begins lower and, more to the point, returns to the same value every time you clean it, instead of climbing until a panel is bought. A part that is serviced instead of consumed. And a specification that is honest about its direction: finer media retain more and flow less, opener media do the opposite. What it does not give is power — a drop-in filter does not make a series Speed Triple noticeably quicker, whatever the medium.

Care and cleaning

Blow compressed air across the clean side of the SM221S F1-85 and outwards through the weave. When the element has had a genuinely dirty season, wash it in lukewarm water with a mild detergent and rinse until the water runs clear. Dry in open air only, never with heat and never over a flame, and refit dry. You will find the maintenance sheet under the Downloads tab.

Fitment & Compatibility

Catalogued for the Triumph Speed Triple 1200 RR of 2021 to 2026. The Triumph Speed Triple 1200 RS of the same period is covered by the same part number. Confirm your model year in the Fitment tab before ordering.