For the EZ Tire Changer Gen 2, start with an air compressor that can supply 8–10 bar (116–145 psi) and has 8–10.5 gallons of tank capacity, as specified on the current product page. The compressor is not included.
Those two numbers are essential, but they do not tell the whole story. Before buying or connecting a compressor, also check its delivered airflow at the required pressure, duty cycle, regulator, hose, and fittings. The current Gen 2 specification does not publish a CFM requirement, so do not guess from horsepower or tank size alone.
Quick compressor checklist for the Gen 2
- Working pressure: 8–10 bar (116–145 psi)
- Tank capacity: 8–10.5 gallons
- Airflow: confirm the compressor can maintain the required working pressure during operation
- Regulator and gauge: use readable, functioning controls and set pressure within the specified range
- Hose and fittings: match the machine connection and carry the required pressure without damage or leaks
- Duty cycle: make sure the compressor is designed for the amount and frequency of work you plan to do
The EZ Tire Changer Gen 2 product page is the canonical product reference. If a compressor listing does not provide enough performance information, ask its manufacturer or contact EZ Tire Changer before ordering.
Pressure, tank size, and airflow are different
Pressure: bar or PSI
Pressure is the force of the compressed air supplied to the tool. The Gen 2 operating range is 8–10 bar, equivalent to 116–145 psi. A regulator controls the outlet pressure. Never exceed the tire changer’s stated range just because a compressor can produce a higher maximum pressure.
Tank capacity: gallons
Tank capacity describes how much compressed air the receiver stores. The Gen 2 product specification calls for 8–10.5 gallons. A tank can help buffer demand, but capacity does not tell you how quickly the compressor can replace the air being used.
Airflow: CFM
Airflow is commonly listed in cubic feet per minute, often at a stated PSI. It describes how much air the compressor can deliver under specified conditions. Two compressors with similar tank sizes can have different delivered airflow and duty cycles.
Because the current Gen 2 specification does not state a CFM value, this article does not invent one. Confirm that the compressor can sustain the required pressure during the intended work cycle.
How to set up the air supply
- Place the compressor on a stable surface in a clean, ventilated area.
- Inspect the compressor, receiver, regulator, gauge, hose, fittings, and tire changer before use.
- Make sure the compressor is off and the air supply is isolated while making or changing connections.
- Connect a pressure-rated hose and compatible fittings from the regulated outlet to the Gen 2 air inlet.
- Start the compressor and set the regulated outlet within 8–10 bar (116–145 psi).
- Check every connection for leaks and confirm the gauge remains stable.
- Test the tire changer controls without a wheel before beginning work.
If pressure falls sharply, the compressor runs beyond its rated duty cycle, fittings leak, or the machine behaves unexpectedly, stop and isolate the air supply. Do not compensate by raising pressure above the specified range.
Do you need electricity?
The Gen 2 tire changer itself does not require an electrical connection; it is pneumatic and runs on compressed air. Your compressor may still require electricity, fuel, or another power source, depending on its design.
If you want a tire changer that requires neither electricity nor a compressor, the EZ Tire Changer 3rd Gen is fully manual. Both current models are specified for 12–21 inch rims, but their power systems and workflows differ. See the Gen 2 vs Gen 3 comparison before choosing.
Safety notes
Compressed-air equipment stores energy. Follow the compressor and tire changer manuals, wear eye and hand protection, keep hoses away from sharp edges and moving parts, and never service or adjust the tire changer while it is connected to a live air supply. Completely deflate a tire before bead-breaking or demounting work.
Do not use damaged hoses, improvised fittings, an unreadable gauge, or an air receiver with visible damage or corrosion. Tire inflation also requires the tire and wheel manufacturers’ procedures and a safe inflation setup. If you are unsure, stop and consult a qualified tire professional.
Frequently asked questions
Is an 8-gallon compressor enough for the Gen 2?
Eight gallons is the lower end of the stated 8–10.5 gallon capacity. You must also verify that the compressor can deliver and maintain 8–10 bar during operation and that its airflow, regulator, fittings, and duty cycle are suitable.
Can I use a larger compressor tank?
A larger receiver does not remove the need for correct regulated pressure, adequate airflow, compatible fittings, and a suitable duty cycle. Confirm the complete setup rather than choosing by tank size alone.
What CFM does the EZ Tire Changer Gen 2 require?
The current verified product specification does not publish a CFM requirement. Do not substitute an unverified number. Ask EZ Tire Changer to confirm compatibility with the compressor model you are considering.
Does the compressor come with the tire changer?
No. The Gen 2 product page states that the air compressor is not included.
Can I use the Gen 2 without a compressor?
No. Gen 2 is pneumatic and requires compressed air. The 3rd Gen is the fully manual option that needs neither electricity nor a compressor.
Bottom line
For the EZ Tire Changer Gen 2, begin with 8–10 bar (116–145 psi) and 8–10.5 gallons. Then verify delivered airflow, duty cycle, regulator, hose, and fittings. Tank size alone is not a complete compressor-sizing decision.