Sprint Filter CM274S air filter
02 · Data & docs

The facts.

DescriptionThe whole story▼

Everything between the outside air and the combustion chamber of a Himalayan 452 is assembled once and left alone. Ducting, box, throttle body, sensors: none of it is opened during ownership, none of it is adjusted, and none of it is inspected in any practical sense. The airbox lid is the only door in the whole tract, and the element behind it is the only part of it that an owner ever holds. Whatever condition that intake is in after five years has been decided in a handful of twenty-minute jobs — how the panel sat, whether the lid closed on it properly, whether it went back dry.

Key Features

  • Woven polyester in one dry layer, rated 80 µm at 5,050 l/m²/sec, never oiled
  • Direct fit in the series airbox — nothing cut, nothing repositioned, no remap
  • Roughly double the filtering surface of conventional performance elements in the same box
  • Restored by cleaning rather than replaced, and built to last the life of the motorcycle
  • 93.13 % of 100-micron particles retained in the manufacturer's comparison, against 76.42 % for oiled cotton
  • Two years of warranty from the date of purchase, with the maintenance sheet supplied

The only door in the tract

Because it is the only access, the fitting matters as much as the material. Air that slips past the edge of an element has not been filtered at all, whatever rating is printed on the panel, so the frame must sit square in its seat and the lid must close on it without a gap. The other half is timing: an element is at its rated condition on the day it goes in and drifts from there, which makes the routine look a certain way — open, look, blow through, refit, and do it more often than a service book written around a throwaway panel suggests.

A part that outlasts the schedule

Sprint Filter builds this element to last as long as the machine it is in, which turns one line of the maintenance plan from a purchase into a task. The two-year warranty covers manufacture; the design intent covers everything after that, provided the cleaning is done as described and not with heat. This is also the point to be plain about the rest: a drop-in element does not make a standard motorcycle noticeably stronger. The benefit is an intake restriction that stays low across the whole interval instead of rising steadily towards the next service.

Care and cleaning

Compressed air first, applied to the clean face of the CM274S and directed outwards, which is the only direction that removes rather than embeds. For a greasy film, tepid water and a mild detergent, rinsed until the water runs clear. Then dry it in moving air, at room temperature, for as long as that takes — no oven, no hot-air gun, no flame near it at any stage — and refit it dry with nothing applied. The sheet with the full procedure is under Downloads.

Fitment & Compatibility

For the Royal Enfield Himalayan 452 of 2024 to 2026. The Guerrilla 450 of the same period takes the same element, so two machines share this part number. The Fitment tab lists the years covered.

DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
  • Royal Enfield Guerrilla (2024–2026)
  • Royal Enfield Himalayan 452 (2024–2026)
07 · Support

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08 · Paddock

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