CO2 Inflator Buying Guide

How to Use a CO2 Inflator
WHAT ARE THE BEST THREE CO2 INFLATORS FOR 2019?
  1. Positz Easy Jet Alloy Airflow CO2 Inflator
  2. Positz CO2 Speed Chuck Pump Tyre Inflator
  3. Giyo Alloy CO2 2-in-1 Dual Function Tyre Inflator and Manual Hand Pump

Positz
Easy Jet Alloy Airflow CO2 Inflator

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Positz
CO2 Speed Chuck Pump Tyre Inflator

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Giyo
Alloy CO2 2-in-1 Dual Function Inflator

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CO2 vERSUS AIR: WHich One LASTS LONGER?

Air! That’s because CO2 gradually ‘leaks’ and you’ll notice after two or three days that your CO2-filled tyre is holding it’s pressure like you’d normally expect. In this situation we recommend you release all the remaining CO2 from your tyre and pump up your tyre with air using a standard floor pump.

Rule: Air is for day-to-day use. CO2 is to get you home when you need it.

CHOOSING THE RIGHT Co2 CARTRIDGE FOR YOUR TYRE SIZE
Use the table below to find the maximum pressure capacity that one CO2 cartridge will fill one tyre. As an example, one 16g CO2 cartridge can fill a 700 x 23 road tyre up to 9 bar / 130psi. A 25g cartridge will give too much pressure for a road bike tyre, so we don’t suggest using that.
Find your tyre size and work your way across to find what sort of cartridge will give you the tyre pressure you’re looking for…
Your Tyre Size
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Road 700 x 23
Road 700 x 25
Touring 700 x 28
Gravel 700 x 38
26 in x 2.0 in
26 in x 2.25 in
26 in x 2.4 in
26 in x 4.0 in
27.5 in x 2.25 in
27.5 in x 2.4 in
27.5 in x 2.8 in
27.5 in x 3.0 in
29 in x 2.25 in
29 in x 2.4 in
29 in x 3.0 in
16G C02
CAPACITY
9 bar / 130 psi
8.5 bar / 123 psi
6 bar / 88 psi
4 bar / 58 psi
2.5 bar / 36 psi
2.1 bar / 30 psi
1.9 bar / 27 psi
0.21 bar / 3 psi
1.7 bar / 24 psi
1.6 bar / 23 psi
1 bar / 14 psi
0.8 bar / 12 psi
1.6 bar / 23 psi
1.5 bar / 22 psi
0.7 bar / 10 psi
25G C02
CAPACITY
--
--
8.6 bar / 125 psi
5.5 bar / 80 psi
4 bar / 58 psi
3 bar / 44 psi
2.8 bar / 40 psi
0.52 bar / 7.5 psi
2.8 bar x 40 psi
2.7 bar / 39 psi
2.1 bar / 30 psi
1.9 bar / 27 psi
2.4 bar / 35 psi
2.2 bar x 32 psi
1.3 bar / 19 psi

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