Developed alongside World Cup mechanics and world champion racers. Peaty's Holeshot Tubeless Sealant is packed full of biodegradable fibres & sealing particles to give a fast and strong seal. Using the latest fast-acting latex, our water-based sealant is ammonia-free, non-hazardous and lasts up to 6 months in the tyre in temperate climates*. It won't ball up in the tyre and is easily washed out. Our biodegradable fibres and particles bind together with the fast-acting latex to create a clot (like platelets in your blood) to quickly & effectively seal holes and tears up to 6mm.

Key Features

Biodegradable sealing fibres.
Biodegradable platelets.
CO2 compatible.
Seals up to 6mm holes.
Operating pressures: 15 to 120 psi.
Operating temperature: -20°c to +50°c.
Seals porous tyres and bead/rim gaps setup.

Setup Instructions:

Always ensure you have tubeless ready rims and tyres. For best results use with Peaty's Tubeless Rim Tape and Peaty's Tubeless Valves.

1. Shake the bottle vigorously before every use to ensure an even distribution of fibres and particles.
2. Rinse away any old sealant from the tyre and dry off completely. For brand new tyres degrease, rinse and dry the internal carcass to remove factory mold release agents and other contaminants.
3. Seat your tyre onto the rim and inflate initially with no sealant, using a track pump, inflator or compressor to pop the tyre bead fully onto the rim.
4. Deflate the tyre and, with the valve at the three o'clock position, use the flexible injector pipe provided to inject the desired amount of sealant directly through the de-cored valve.
5. Re-insert the valve core and re-inflate the tyre to desired pressure.
6. Distribute the sealant around inside the tyre by spinning the wheel and tapping the tyre on the floor.
7. Listen for any air leaks and orientate the wheel so that the sealant flows around the inside of the tyre to the area required. Continue doing this until you can't hear any more air loss.
8. Wash away any excess sealant that may have found its way to the outside of the tyre or rim with water.
9. Check tyre pressures and ride!

Recommended minimum quantities per tyre:

Road 30 - 45ml
CycloCross 60 - 75ml
26" MTB 60 - 80ml
27.5" MTB 70 - 90ml
29" MTB 100 - 120ml

For wider rim/tyre combinations and/or additional puncture protection we recommend adding up to 30ml more sealant to the above quantities.

* Always check sealant regularly and top up as required

† If a seal can't be made, add more sealant in increments as required

Occasionally, without notice, manufacturers change product design and/or specifications.

Tubeless Sealant and Accessories Guide

Riding with tubeless tyres means that you’ll spend less time fixing flats and more time shredding the trails or lighting up the open road. In this tubeless guide we’ll look at all the things you need to get your wheels and tyres rolling without inner tubes.

Tubeless Sealant

Sealing all the little air gaps in your tyres, whether through a puncture or a less-than-perfect tyre/rim seal, tubeless sealant is an essential for every cyclist who wants to ride without tubes. There are a few different options to choose from, but they all work on the same principle: a liquid that solidifies when it leaks out of the tyre to seal gaps and punctures.

While simple latex-based liquids will work as sealants most brands sealants use special formulas and additives to improve longevity and sealing performance. Sealants with particles added are better at sealing larger holes so are ideally suited to mountain bike tyres. Lighter weight sealants are good for road bikes as puncture holes are generally smaller and easier to heal. Some sealants don’t work well with CO2, so check for compatibility if you plan on using a CO2 inflator to seat your tyre.

How much sealant should I use?

The amount of sealant you need to use will depend on the volume of the tyre. Brands will recommend specific amounts for their sealants which will be about 30 – 60ml for road bike tyres and 70 – 150ml for MTB tyres.

The table opposite shows typical sealant quantity recommendations to use as a starting point. If your tyres are a little porous some sealant may leak out. Don’t worry about this, it’s just the sealant doing its job, but you may need to top up with a little extra to be sure that there is enough left to seal any punctures.

Tyre size	Sealant quantity
27.5 x 2.0	75ml
27.5 x 2.4	110ml
29 x 2.0	90ml
29 x 2.4	130ml
700 x 25	30ml
700 x 32	50ml

Tubeless Sealant Accessories

Tubeless Rim Tape

If your wheel doesn’t have tubeless ready rim tape installed, then you will need to tape the rim with tubeless compatible tape. Tape is available in different widths and you’ll need a size that best matches the internal width of your rim.

applying tubeless rimn tape to an mtb wheel

Tubeless Valves

As there is no inner tube the valve attaches directly to the rim of a tubeless wheel. These are usually Presta valves. Make sure that you get ones that are long enough to easily go through the rim of your bike. Longer valves are available for deep section rims. The valve cores tend to block up with sealant after a while so they will need taking out and cleaning and/or replacing from time to time.

Tubeless Conversion Kits

Tubeless conversion kits contain sealant, tape and valves as well as fitting instructions, so these are the best option when converting your wheels for the first time. When buying a conversion kit make sure that you get one with the correct tape width and valve length to fit your wheel.

Sealant Injector

You can pour sealant into the tyre before you finish putting the tyre on, but many people prefer to inject the sealant through the valve. You can use a normal syringe, but specific injectors usually include a valve adaptor that makes the job easier. Some Tubeless Kits include an injector.

injecting sealant into a mountainbike tyre

Tubeless Tyre Repair Kits

While sealant will heal smaller punctures by itself a larger hole or tear in the tyre will need to be plugged or patched. Tubeless plug systems offer long lasting repairs and are very quick and easy to use even at the road or trail side. If you don’t want to have a small bit of the rubber bung showing through your tyre, then you will need to take the tyre off and patch it from the inside.

repairing a puncture in a tubeless mtb tyre

Tyre Inserts

Foam tyre inserts cushion the blows from rock strikes, especially when running low tyre pressures. They are a great way to protect your MTB tyre and rim when riding through rough terrain. Inserts can also help to keep the tyre on the rim more securely to avoid burping air when cornering.

Tubeless Inflators

When you fit a new tubeless tyre, it can sometimes be difficult to get the tyre seated properly on the rim. This is because a normal track pump doesn’t blow the air out quick enough to overcome the initial gaps between tyre and rim. Tubeless inflators allow you to blast a shot of air directly into the tyre to pop it onto the rim.

Tubeless inflators like the original Air Shot need to be pumped up with a separate track pump whereas others combine both track pump and inflator tank. See our range of tubeless inflators