Electric Scooter Tyre Pressure: How to Find the Correct PSI and Bar
Quick answer
Use the pressure in your scooter’s manual, not one number from the internet. The Xiaomi and Segway models we checked list between 40 and 50 psi (about 2.8 to 3.4 bar), but the range varies by model. Check when the tyres are cool, and never go above the maximum marked on the tyre. Solid tyres do not need air.
How this guide was made: The pressures below come from manufacturer pages and manuals, checked on 3 November 2026. IonicRide has not tested them. The bar and kPa figures are our own conversions. Check your exact model and version, as generations can differ.
Pressure by model
| Model | Listed psi | Bar (converted) | Source |
|---|---|---|---|
| Xiaomi 4 Lite (2nd Gen) | 45–50 | 3.10–3.45 | Xiaomi |
| Xiaomi 4 Lite | 45–50 | 3.10–3.45 | Manual |
| Xiaomi 4 | 45–50 | 3.10–3.45 | Manual |
| Xiaomi 4 Pro | 40–50 | 2.76–3.45 | Manual |
| Xiaomi 4 Pro (2nd Gen) | 45–50 | 3.10–3.45 | Xiaomi |
| Xiaomi 4 Pro Plus | 40–50 | 2.76–3.45 | Xiaomi |
| Segway Ninebot F2 Plus and F2 Pro | 42–48 | 2.90–3.31 | Manual |
| Segway Ninebot MAX G2 | 42–48 | 2.90–3.31 | Manual |
Notice that the first Xiaomi 4 Pro and the 2nd Gen list different lower limits. This is why you should confirm the exact version, using the label on the scooter or the box.
Manual figure or tyre maximum?
You may see two numbers, and they do different jobs:
- Manual pressure: the operating range the scooter maker recommends. Aim for this.
- Maximum on the tyre wall: a limit you should not exceed, not a target.
If the two seem to conflict, or a replacement tyre has different markings, ask the scooter maker or the tyre seller before riding.
How to check the pressure
- Let the tyres cool. Michelin’s motorcycle advice is to check when the tyre is cold, meaning at air temperature. The scooter pages we checked give no separate rule, so we use the same principle.
- Remove the valve cap. Keep it safe, then refit it afterwards.
- Attach a pump or gauge firmly. Xiaomi’s pages say to fit it securely to the valve.
- Read the pressure. Add air in short bursts until you reach the range.
- Refit the cap, then check the other tyre.
On the 4 Pro Plus, Xiaomi describes using an extension valve to reach the tyre valve. Use the part and method in your own manual.
How often to check
Xiaomi says to check monthly on the 4 Lite (2nd Gen) and 4 Pro (2nd Gen), and every 20 to 30 days on the 4 Pro Plus. It also warns that tubeless tyres lose some pressure in storage and use. Check before a long ride, and after the scooter has been stored for a while.
Dubai heat: what changes and what doesn’t
Warm air raises the pressure reading. By our own estimate, a tyre at 50 psi gains about 2 psi for each 10°C rise. This is a physics calculation, not a manufacturer figure.
- Do check in the shade, after the tyre has cooled.
- Do stay inside the manual’s range.
- Do not let air out of a hot tyre as routine. Michelin warns against this because the tyre can then be too soft once it cools.
- Do not set a lower summer pressure of your own. The heat does not replace the manual’s range.
PSI, bar and kPa conversion
| PSI | Bar | kPa |
|---|---|---|
| 40 | 2.76 | 276 |
| 42 | 2.90 | 290 |
| 45 | 3.10 | 310 |
| 48 | 3.31 | 331 |
| 50 | 3.45 | 345 |
Rounded from 1 psi = 0.0689 bar = 6.895 kPa.
What wrong pressure can do
Xiaomi says low pressure can speed up tyre wear and cause a puncture, and that you should not ride with irregular pressure. If you have also noticed lower range, see our guide to range dropping too fast.
If the tyre keeps losing air
- Pressure gone after a day or less: look for a puncture or valve fault. See our puncture repair guide.
- Tyre damaged or worn out: see how to change a scooter tyre.
- Tired of air tyres: compare solid and air tyres.
FAQs
Can I use a petrol station air pump?
Only if its gauge and fitting suit your valve and you can control the pressure. Add air in short bursts and recheck with a gauge you trust.
Should front and rear be the same?
The pages we checked list one range for front and rear on Xiaomi models. Follow your own manual if it differs.
Should a heavier rider use more pressure?
Stay within the manual’s range, and within the scooter’s listed load limit. The pages we checked do not give a separate pressure by rider weight.
Bottom line
Find your exact model, use the listed range, and check when the tyres are cool about once a month. Stay under the tyre’s maximum, and keep the same range in summer unless your manual says otherwise.
Related guides
Sources
- Xiaomi 4 Lite manual
- Manuals.plus: Xiaomi 4 manual
- Segway F2 Plus and F2 Pro manual
- Michelin: motorcycle tyre pressure FAQ
By Alex at IonicRide. Sources checked 3 November 2026.
