The facts.
DescriptionThe whole story▼
The standard element for this airbox is listed against fifteen motorcycles. The racing weave in the same frame is listed against one, the R nineT Racer, and that narrowing is the most informative thing on the page. Sprint Filter did not offer this specification to the roadster, the Pure, the Scrambler or the older boxers sharing the housing. It offered it to the single variant BMW built low, with a fairing and clip-on bars.
Key Features
- Dry woven polyester, the racing member of the P08 family, used without oil
- Threads from 22 µm in diameter at a rated 15,000 l/m²/sec, the highest flow figure Sprint Filter publishes
- Retention quoted at 95.22 per cent of 100-micron test particles
- Threads from ø 22 microns across, with the openings between them doing the filtering
- Around twice the filtering cloth of a typical performance element
- Goes into the series airbox where the paper panel sat: nothing cut, no remap
What a one-line list means
It is a statement of intent, not of fit. The housing is shared, so this panel would seat in a Pure or a Scrambler exactly as it seats here; the catalogue is saying that only one of those machines is sold to riders expected to want it. The Racer is the version whose owners take it to open days and circuits, and a high flow rating is only ever collected there. It is not a homologation, not a race entry and not evidence about the engine, which is the same air- and oil-cooled twin underneath.
The condition, and who meets it
A flow figure describes what a square metre of material will pass, not a quantity delivered to an engine, and its top is reached only with the throttle fully open, high in the rev range, held for whole seconds at a time. On the road that state survives a fraction of a second between gearchanges. A twin with a wide, flat spread of torque does not live at its rev limit even on a circuit, so most owners will call for this rating rarely if ever. Nor does the racing weave add power — nothing inside a series airbox does — and the standard 80 µm weave at 5,050 l/m²/sec passes everything a road ride asks for.
Care and cleaning
Servicing PM109S F1-85 is dry work in the ordinary case: an air line held to the clean face and directed outward until the weave is clear. Where a film has built up that air will not take, hand-warm water with mild detergent will, rinsed until clean. Drying happens in moving air and nowhere near a heat source, because heat rather than dust destroys the medium, and the element returns to the box dry — the same routine between two sessions as at the end of a season. The maintenance sheet is under the Downloads tab.
Fitment & Compatibility
Made for the BMW R nineT Racer of 2017 to 2020, as a direct replacement in the standard airbox. The fitment list holds this machine alone. Owners of the other boxers on this housing — the R nineT, the Pure, the Scrambler and the older R 1200 and HP2 models — will find them on the standard PM109S, with the fine PM109P14 for the Scrambler and the 7-micron PM109T12 for the GS and HP2 side of the range. The Fitment tab has the detail.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- BMW R nineT Racer (2017–2020)
Questions, one topic at a time.
Get the real shipping cost for this item to your address — the same rates as checkout.
Choose a destination and hit Estimate — we fetch the live rates for this item.
We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.
Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.
Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.
Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.
As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.
On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.
You have the right to cancel within 14 days of receiving your order. Register your return by email first; once it’s approved you have a further 14 days to send the goods back. Items should be unused and in their original packaging.
Register your return by email with your order number before sending anything back, and we’ll send you the return instructions. Please note: returns that aren’t registered in advance can’t be accepted.
The quickest way is to place a new order for the size you need and register a return for the original by email — just let us know it’s an exchange.
We’re sorry — that shouldn’t happen. Contact us with your order number and a photo as soon as you can, and we’ll arrange a replacement or refund right away. Faulty goods are always covered by your statutory warranty.
Refunds go back to your original payment method, usually within 3–5 working days of your return reaching our warehouse.
PayPal, all major credit and debit cards (Visa, Mastercard, American Express), Klarna (pay later and instalments), Apple Pay, Google Pay and more — all processed securely via PayPal and Mollie.
Yes. Choose Klarna at checkout to split your purchase into flexible monthly installments.
Your payment is taken when you place your order. If you choose Klarna, you pay later according to Klarna’s terms.
Every payment runs over an SSL-encrypted connection through certified providers. We never see or store your full card details.
If your order hasn’t shipped yet, contact us as soon as possible and we’ll do our best to change or cancel it.
No — you can check out as a guest. An account simply lets you track orders and reorder faster.
For customers in the EU, prices are shown including your country’s local VAT. For customers outside the EU, prices are shown without VAT — instead, your country’s import taxes and duties may apply on delivery (see the customs question).
Yes. Your invoice is attached to your order confirmation email and is also available in your account.
Yes. We’re an authorised dealer, so every product is 100% original and comes with the full manufacturer warranty.
Yes. Everything we sell is genuine and comes with the manufacturer’s warranty, on top of your statutory rights. Keep your invoice as proof of purchase and contact us if you ever need to make a claim — we’ll help you through it.
Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.