Peaty's Holeshot CO2 Tyre Inflator Head

If the hole in your tyre is so big that sealant can’t seal it, your tyre will lose all air pressure and, most of the time, the tyre bead will pop off the bead seat on the rim, creating air gaps all the way around the tyre bead. As anyone who has set up tubeless tyres before will know, getting enough air into the tyre to pop the tyre bead back onto this bead seat isn’t easy, even when you’re in the comfort of your home workshop, never mind out on the trail with a group of impatient mates - or worse - mid race.

A lot of people carry mini hand pumps with them, and they’re great for re-inflating small amounts on the trail after slight pressure loss, but you’d need forearms like popeye to re-seat your tyre with one! Without doubt, the quickest and easiest way to get you back riding while out on the trail is with a co2 inflator. Not only do they get you back up and riding again much quicker than a hand pump, they are much smaller and easy to carry with you on your ride.

Made from CNC’d 6061 aluminium, and with a patent-Pending valve design, the details of Peaty's inflator heads have been agonised on - from the exact rubber compound of the o-rings to the awesome chris king anodized colours.

Our straight line, compact design enables faster airflow for rapid inflation, and creates less stress on your tubeless valves when you’re using it because you’re coming at the valve straight on rather than at a 90 degree angle.

From flat to inflated in less than 10 seconds!

Not stopping at the inflator head, we applied the same level of detail and quality in making a high quality CO2 cartridge sleeve. far from a cheap strip of neoprene, our freeze protector sleeve is made from temperature resistant silicone and has a unique closed base to stop your hand from freezing to the cartridge, no matter how you hold it - even without wearing gloves.

A CO2 inflator head alone weighs 15.2g

A CO2 inflator head with a full 16g CO2 cartridge weights 83.8g

A CO2 inflator head with a full 25g CO2 cartridge weights 138.2g

The pressure you will be able to get from a 16g or 25g CO2 canister will heavily depend on your wheel size, tyre width, tyre depth and rim design (a rim with a big dip in the middle will create more volume to fill than a shallow dipped rim).

With so many variables it’s impossible for us to guarantee exactly what pressure you’ll achieve in your particular setup, but we’ve put together a table of wheel / tyre sizes below to demonstrate what pressures you’re likely to achieve with either 16g or 25g cartridges.

Recommended Size

When CO2 is highly compressed (870psi to be precise!) it becomes liquid. The process of turning liquid CO2 back into a gas is called an exothermic reaction. This means that the CO2 has to steal energy from somewhere else in order for it to turn into a gas - in this case it steals heat from the CO2 cartridge, the inflator head - anything it can get its energetic little mitts on! This is why it’s so important to always use the closed base freeze protector sleeve, so it doesn’t steal heat from your hands and give you freeze burns!

Yes, this can make a huge difference in inflation time! CO2 canisters are full of liquid gas so if the inflator head is pointing downwards (6 o’clock position) then both gravity and the pressure inside the canister will be forcing the liquid CO2 out of the inflator head. This can result in full inflation times of under 10 seconds!

If the CO2 inflator is pointing upwards (12 o’clock position) then only the gas pressure inside the canister will be forcing the CO2 out of the canister. This will result in inflation times of between 10 and 20 seconds.

When pointing upwards, because you’re relying on only gas pressure, the canister will usually have a small amount of gas left even when the tyre is fully inflated. This is because the gas pressure between the canister and tyre have equalised. For example if the tyre pressure is 30psi in the tyre, you will have 30psi pressure left in your canister.

If your valve stem has any moisture on the outside of it then this moisture can freeze solid when the CO2 gas is released. This moisture could then freeze to the o-ring on the inflator head and make it feel stuck, but fear not, just simply twist it anti-clockwise a few times as if you’re unscrewing a thread (to break the seal of the ice) and it should pull straight off again.

If your valve stem has a restricted airflow (from a sealant blockage or has a partly closed or broken valve stem) this can cause a build up of freezing CO2 liquid or gas in the valve head which can - sometimes - cause the inflator head to freeze up (especially when inflating in a downwards position).

This can also happen if there is residual water inside the inflator mechanism.

Don’t panic, if this does happen, simply wait a few minutes for the ice to melt and the mechanism will move and blow gas freely again.

It is important to check your tubeless valves for any blockages as this will massively reduce C02 air flow into your tyre, and can lead to the gas spurting out of the inflator head. A quick clean out of your tubeless valve will fix this. Simply remove your valve core and unblock the valve by poking a small object through, something like a small allen key will do the job. Put your valve core back in and re-inflate your tyre.

CO2 blasts out of the inflator head at around -50 degrees, so it will freeze any sealant that it comes into close contact with however, since our Tubeless Sealant formula is a water-based formula (which means the latex is suspended in water rather than chemicals) it will soon defrost and performance won’t be affected.

If you are running another brand of Tubeless Sealant then please check with the manufacturer's guidelines to see if it is compatible with CO2 inflators before using.

Single use, yes … but fully recyclable. Just pop these in with your metal recycling and they’ll be made into something shiny and new again in no time!

Yes, you breathe it out all the time. In one day, the average person breathes out around 500 litres of CO2 gas – which amounts to around 1kg in mass. By releasing 16g of CO2 then, you’ll be releasing the equivalent of around 20mins of standard human exhaling.

CO2 is also commonly used for propelling fire extinguishers and inflating life jackets but most importantly carbonating beer.

A CO2 inflator head alone weighs 15.2g

A CO2 inflator head with a full 16g CO2 cartridge weights 83.8g

A CO2 inflator head with a full 25g CO2 cartridge weights 138.2g

Each CO2 inflator head is dual sealed to provide an excellent, durable seal. After popping a CO2 cartridge you can expect to lose only around 0.5g per month.

Yes, but they won’t have our unique fully enclosed sleeves so don’t blame us if you get frost burn.