Make sure you keep the tires within tire pressure range marked on the tire sidewall.
| Model | Min. Pressure (PSI) | Max Pressure (PSI) |
| Alpha Zero | 22 | 65 |
| Alpha One | 40 | 65 |
| Alpha Two | 40 | 65 |
| Alpha Three | 40 | 65 |
| Alpha Four | 40 | 65 |
Presta Valve Operation (Zulu Series Bikes)
Zulu Series bike are equipped with Presta valves. In order to open a Presta valve:
- Remove the black plastic cap
- Turn the small nut on the valve counterclockwise to loosen and open the valve.
- Inflate
- Turn the small nut on the valve clockwise to tighten and close the valve.
Schrader Valve Operation (Alpha Series Bikes)
Alpha Series bike are equipped with Schrader valves. In order to open a Schrader valve:
- Remove the black plastic cap
- Inflate
- Replace the black plastic cap
