Sprint Filter PM252S F1-85 air filter
02 · Data & docs

The facts.

DescriptionThe whole story▼

On a 457 the tuning headroom is small, so the intake side has to be honest. The Sprint Filter P08 F1-85 is the racing answer: a patented polyester medium woven from threads starting at ø 22 microns, and by Sprint Filter's own account the most widely used air filter in the MotoGP, Moto3, World Superbike, Supersport and Superstock championships. Here it is offered as a direct-fit element for the Aprilia RS 457 — a bike from a factory Sprint Filter has supplied in SBK and MotoGP since 2015.

Key Features

  • Patented F1-derived polyester medium, threads from ø 22 microns — the freest-flowing element Sprint Filter builds for this airbox
  • The highest airflow in the range for the RS 457, at the filtering power the racing classes demand
  • Enlarged filtering surface matched to the standard airbox, not a generic panel
  • Dry medium, no oiling, washable between sessions
  • Drop-in fitment, so a race weekend needs no bracketry and no remap
  • In the business since 1952

What you are actually buying

The F1-85 came out of Sprint Filter's Formula 1 work rather than being adapted down from a road element, and the difference shows in where it makes sense. A medium built for maximum flow is not the one built for fine dust — that is what the P14 is for. On a circuit that is a sensible bargain: the air is comparatively clean, sessions are short, and the filter comes out for compressed air afterwards. On a dusty road ridden every day it is the wrong bargain, and we would rather say so than sell you the more expensive part.

Who should fit this and who should not

Fit the F1-85 if your RS 457 is a track bike, a race bike, or a road bike that mainly sees circuits and is serviced accordingly. Fit the P08 PM252S if it is a road bike. Fit the P14 if it is a road bike in dusty country. The price difference between them is not a quality ladder — it reflects a different medium built for a different environment.

Care and cleaning

The PM252S F1-85 is cleaned like every dry Sprint Filter element. Between sessions, blow an air jet through the element against the normal intake direction and refit it; no washing, no drying, no downtime in the paddock. For a heavily loaded element use compressed air first, then ordinary household detergent, agitate gently, rinse until the water runs clear and air dry completely. Never oil it — oil belongs to cotton-gauze filters and does real harm here. The illustrated maintenance sheet is in the Downloads tab.

Fitment & Compatibility

Engineered specifically for the Aprilia RS 457 (2024–2026), 457 cc parallel twin. Model-specific element for the standard airbox; no airbox modification required.

DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
  • Aprilia RS 457 (2024–2026)
07 · Support

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08 · Paddock

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