The facts.
DescriptionThe whole story▼
Most CB150Rs are ridden where the air is hot, seasonally wet and thick with traffic dust, and those are the two conditions a racing filter medium handles least well. The P08 F1-85 is the fastest-flowing fabric in the P08 family at 15,000 l/m²/sec, and despite its name it does not get there by opening the weave: the 85 is no pore size, and in the manufacturer's test it keeps back 95.22 % of 100-micron particles against 93.13 % for the standard P08. What it is built for is flow, not water or fine dust. On a swept circuit that is exactly right; in monsoon traffic it answers the wrong question. The SM219S F1-85 is here for owners who race the bike; for everyone else the honest answer sits elsewhere in the same range.
Key Features
- Racing specification: threads from 22 µm diameter with 15,000 l/m²/sec, the highest flow in this family
- Polyester, run completely dry — an oiled filter has something to give up, this one has not
- More filtering surface than a comparable sports element offers
- A straight exchange for the paper element: the airbox stays as Honda built it, the mapping as it was
- Washed, dried and put back rather than binned at every service interval
- Built to outlast the motorcycle, warranted for two years from the day of purchase
What this bike actually breathes
Two things reach a tropical intake that a circuit does not supply. One is water: road spray, and humidity that a paper element takes in and holds. The other is fine mineral dust from unsealed shoulders, mixed with brake and tyre debris in slow traffic, and it is the small end of that mixture that stays airborne at intake height. Sprint Filter answers each with a different fabric rather than a better one. The P037 is water-repellent polyester at 37 microns and 4,500 l/m²/sec; the P14 goes down to 14 microns at 1,800. Both give up flow to gain retention. The F1-85 stands outside that exchange: it adds flow without giving up retention against the P08, and flow is not what either of those problems calls for.
Where the racing medium earns its place
Racing is not only a harder duty cycle, it is a far shorter one, and the engine behind it is built and opened on a schedule that would look absurd on a road bike — that is where 15,000 l/m²/sec actually gets used. Neither applies to a CB150R used to get to work. Ridden that way, the P08 is the sensible default, and the P14 the better answer once dust is a daily fact rather than an occasional one.
Care and cleaning
In normal use it is a compressor and nothing else: air fed to the clean side and worked outward, and the SM219S F1-85 back in the airbox dry. Heavier deposits come out with lukewarm water and a mild detergent, rinsed until it runs clear, then left in moving air until it is dry throughout. No hairdryer, no heat gun, no flame. It is never treated with oil. The maintenance sheet from Sprint Filter is in the Downloads tab.
Fitment & Compatibility
Made for the Honda CB150R from 2018 to 2026. This one SM219S F1-85 element serves all four Neo Sports Café singles, 125 through 300; the complete list is in the Fitment tab.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- Honda CB125R (2018–2026)
- Honda CB150R (2018–2026)
- Honda CB250R (2018–2026)
- Honda CB300R (2018–2026)
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