How to read this tyre pressure label?

[inlinesix]

All along I understand to choose tyre must look at the load index and speed index of the tyres.

 

For example 91V means this tyre cannot take load of more than 615kg/tyre ==> 2460kg for 4 tyres, and the tyre cannot go faster than 240km/hr which is the V speed rating.

 

Of course cannot get tyres with load index just nice the weight of the car, but I never come across any article online advocating how much margin to provide to be safe. Logically to provide for situation such as one tyre burst thus the remaining 3 tyres to share the load of the car, the load index preferably be (actual car weight/3) ==> load index of 91 can only be used on cars lighter than 615x3=1845kg which covers most of the cars sold here. Correct me if I am wrong.

 

And c

an you elaborate on the portion highlighted in blue? Generally all tyre makers will not recommend you to pump at whatever pressure, but always to follow that recommended by the car maker for the ride you are putting the tyres. And of course not to exceed the very high max pressure that the tyre is made to withstand.So what you put down really confuses me. Thanks in advance for enlightening.

Mini stock tyre load index and pressure required is 84 and 260.

 

That is load capacity of 460kg

 

When I change to PS4, load index is 88. To achieve load capacity of 460kg, need to pump 227.

 

If I change to tyre with load index of 82, need to pump 289.

[Heartlander]

Mini stock tyre load index and pressure required is 84 and 260.

 

That is load capacity of 460kg

 

When I change to PS4, load index is 88. To achieve load capacity of 460kg, need to pump 227.

 

If I change to tyre with load index of 82, need to pump 289.

Can you provide the reference you used to do the calculation?

With load index=84 + pressure=260 --> load capacity=460kg

With load index=88 + pressure=227--> load capacity=460kg

With load index=82 + pressure=289 --> load capacity=460kg

[inlinesix]

Can you provide the reference you used to do the calculation?

With load index=84 + pressure=260 --> load capacity=460kg

With load index=88 + pressure=227--> load capacity=460kg

With load index=82 + pressure=289 --> load capacity=460kg

Go and download Continental Tyre Technical Data book