OKO Puncture Free Bike

Puncture free Bike Range

The Best all-purpose puncture preventer
Now lighter than ever
Now seals holes up to 4 mm
Works on multiple punctures
Lasts the life of the tyre
Suitable for all bike types: CO2-friendly
Ideal for tubes (great for e-bikes)


OKO Puncture Free is a water-based liquid that is able to work on both tubed and full UST tubeless tyres.

It gives peace of mind and lasting security for the tyre’s life, with a dose of 60-100ml per tyre in mainstream bikes, depending on size.

An all-purpose product for commuting to weekend mountain biking, it is ideal to use when converting to full UST tubeless, where you need a sealant that can deal with serious punctures.   Many other bike sealants are just too weak to get the job done.

(For ‘tubeless ready’ tyres, use a rim strip plus OKO Magic Milk™)

250 ml bottle deals with one large bike with some to spare: for 26” MTB tyres it is now just 100ml per tyre, up to 20% less weight than any recognised competitor. It’s a really economical way of ensuring peace of mind, for a fraction of the cost of replacing just one tyre. Keep one in your backpack to make a bicycle puncture repair; with a tyre pump or gas bottle you can reinflate and ride away after many a puncture.

Simple fitting, using the valve core remover and filling tube supplied in every bottle cap: or use an OKO Tyre Sealant Injector for easy, accurate measuring.

NEW 5 Litre Can (with 150ml Injector for easy, accurate application) is great for smaller service workshops.

25 litre drum is ideal for service workshops – now in use with bike hire schemes to combat their puncture problems: use with the OKO Bike drum pump with adjustable dosage, plus Schrader and Presta screw fittings.


Not latex-based

Much longer effective life

Combats larger punctures

Seals multiple holes

Contains corrosion inhibitors


Non Hazardous


Non Corrosive: Non Flammable: Non Hazardous (not excluded from air shipments unlike some ammonia-containing products). Washes out of the tyre if required.

NO ADVERSE AFFECT UPON TYRES OR RIMS (contains anti-corrosion agents).

WORKS WITH INNER TUBES (and FULL UST TUBELESS WHEELS/TYRES), with Schrader or removable-type Presta valves.

(For ‘Tubeless Ready’ tyres, use a rubber rim strip and OKO Magic Milk, which is the best sealant to seal the bead/rim gaps and the sidewall porosity).

Colour: Blue. Viscous. Low Odour.


Up to 18” 50ml
20” BMX 80ml
22-24” Junior MTB 80ml
26” MTB 100ml (120ml for wider tyres)
700C 80-100ml
29″ MTB 120ml-140ml

For maximum accuracy, for easier use with removable Presta valves, and for a host of workshop uses, use the OKO Tyre Sealant Injector.

OKO Puncture Free Tariff Number: HS 3824 99 96 99
OKO Pressure Application Pump and Injector Tariff Number: HS 8413 20 00 90

No risk and safety labels or warnings are required since this product is not classified as hazardous under current regulations. Normal safety precautions should be taken: wear gloves and protect eyes. Rinse product off any clothes that it may be spilled upon. Keep away from children. If swallowed, see a doctor.


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