For maximum protection of your own safety, please use tyres with the right pressure. You can get the pressure information from Michelin retailers or professional Michelin technical sales representatives.
When one tyre of the twin-configuration is flat, the other tyre carries the extra load, which may result in damage to both tyres.
Do not install tyres of different brands, different pattern or different construction (bias or radial tyres) on the same axle. This is to ensure better braking, handling, stability and safety.
Check for tyre damages regularly and repair when necessary. Remove any stones between the twin tyres. This will prevent the rusts from weakening the tyre.