Sprint Filter P08 F1-85 Air Filter for Racing – Honda CBR600RR US Model (2020–2026) PM46S F1-85

Until 2020 a cable ran from the twistgrip of a CBR600RR down to the throttle bodies, and whatever the intake tract was doing reached the rider's right hand unedited. The 2020–2026 bike works differently: the request goes to a control unit, which decides how far the butterflies open, in which mode and under which traction strategy. That does not make the bike worse, but it makes an intake part very hard to judge by feel. Anyone who fits a P08 F1-85 here and reports a sharper throttle on a road ride is describing the mapping. The case has to be made on what it is: 15,000 l/m²/sec of flow against the 5,050 of the standard P08, at 85 microns against the P08's 80.

Key Features

• Racing specification P08 F1-85 — 15,000 l/m²/sec of flow at 85 microns
• Woven dry polyester, never oiled — no film reaches an electronic throttle
• Deep pleating puts far more fabric into the same airbox volume
• Goes into the series airbox of the 2020–2026 CBR600RR unaltered, no remap
• Cleaned rather than consumed: compressed air returns it to service
• Built for the service life of the bike; warranty two years from purchase

A decision made on paper, not in the saddle

Eighty-five microns is a step backwards from eighty, and enthusiasm does not reverse it. What makes the CBR600RR one of the strongest candidates for a racing medium here is not the badge but how these bikes are used: a homologation-class supersport, a real share of them living on circuits and at track days, engines refreshed on a schedule counted in running hours. That schedule is the condition. Where it is kept, opening the weave slightly in return for three times the flow is a controlled choice. Where the bike is a road machine serviced by mileage, that choice has no review date, and the P08 belongs in the airbox.

One name, three listings

The CBR600RR badge spans more than one machine and the catalogue keeps them apart. PM46S F1-85 serves the 2007–2020 bike, which is listed without market restriction, and the 2020–2026 bike, which Sprint Filter records for the United States only. The CBR600RR built from 2021 for Europe and other markets is not on this reference at all — its racing cloth is SM262S F1-85. So the year on the registration document settles the first question and the market of delivery settles the second. A shared airbox between the two generations listed here is why one part number serves both.

Care and cleaning

Regeneration is dry work. Compressed air goes on the clean side of the PM46S F1-85 and pushes outwards, so deposits leave by the route they arrived on rather than being driven deeper. Heavier soiling comes out with hand-warm water and mild detergent; rinse until clear, then dry it fully in open air. Heat guns, ovens and flames are off limits, and it goes back in dry. Sprint Filter's maintenance instructions are in the Downloads tab.

Fitment & Compatibility

For the Honda CBR600RR from 2020 to 2026, US market only, and for the 2007–2020 CBR600RR without market restriction. A CBR600RR delivered outside the United States from 2021 takes SM262S F1-85 instead. The full list is in the Fitment tab.