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Reading in my Longchamp owners manual it shows metric pressures: Front: 2.2kg/cm2 and Rear: 2.4kg/cm2.

This is for tyres listed as 215/70/15.

What I'd like to know is what pressures people are using for their Longchamp/GTS.

I have Front 225/50/15 & Rear 285/40/15.

Also, I'd like the conversion to non-metric measurement. Maths were never my strong point.

Thanks.

Phil
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Hello Roland,

There are at least a couple of Longchamps running with the 40 series tyre here in the UK.

I'm aware it knocks the gearing out and one also has to adhere to the speed rating but I just hate the look of that 50 series GTS rear tyre.

I do not intend taking my car anywhere near the new tyres maximum speed rating at we have too many speed humps and cameras.

if things get difficult I may look into changing the rear end gearing though I'm not sure what's out there in the marketplace.

Phil
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