Tyre pressures now 475kpa

[Mark McG]

Just had two new Michelin agilis 227/76/R16 CP 116q tyres fitted. Expected them to be the same 80psi at the front but they are labelled max 475kpa which is almost 69psi. Quite a bit lower than previous but I have been running about 65psi on the front anyway. Surprised at the change though!

 

[Winger]

What is KPA, I’m a psi man but can work with bar pressure?

 

[ontheroadagain]

Mine are the same. Dated 1121.
Run mine at 55F/70R.

 

[Mark McG]

What is KPA, I’m a psi man but can work with bar pressure?

kilopascal (kPa), one thousand times the unit of pressure and stress in the metre-kilogram-second system (the International System of Units [SI]). It was named in honour of the French mathematician-physicist Blaise Pascal (1623–62).

 

[Spriddler]

What is KPA, I’m a psi man but can work with bar pressure?

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[Lenny HB]

Max pressures marked on tyres only applies to the American market.

 

[ontheroadagain]

Max pressures marked on tyres only applies to the American market.

I don’t think this is the max pressure. It looks like the load rating (116) was previously measured at 80psi but is now measured at 69psi on more recent tyres. Perhaps I am reading it wrong?

 

[Winger]

kilopascal (kPa), one thousand times the unit of pressure and stress in the metre-kilogram-second system (the International System of Units [SI]). It was named in honour of the French mathematician-physicist Blaise Pascal (1623–62).

thanks for your reply but my oh my that is so away over my head!

 

[Mark McG]

don’t think this is the max pressure. It looks like the load rating (116) was previously measured at 80psi but is now measured at 69psi on more recent tyres. Perhaps I am reading it wrong?

Just surprised that supposedly identical tyres have different pressures stated

 

[denisejoe]

That’s a high pressure I run my fronts at 55 psi max

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[dash300]

Just surprised that supposedly identical tyres have different pressures stated

Took the pressure down on my front Michelin Agilis CP's to 65 psi and they are much less crashy. It was a recomendation by another well respected convertor of PVC's, but can't remember which, who quoted this pressure for the fronts for the Michelins Cp's.