2015 Singapore Grand Prix

[The Black Knight]

So let’s clarify what the minimum tyre pressures has been over the past few races:

Belgium: Front tyres – 18.5 psi; Rear tyres – 20 psi

Italy: Front tyres -19.5 psi; Rear tyres – 21 psi

Singapore: Front tyres – 18 psi; Rear tyres – 17 psi

Last year the front tyre limits were set by Pirelli at 16 Psi on the front. This has been raised by two Psi to 18 and the rear tyres must be at least 17 Psi.

Pirelli raised the tyre pressures at Monza by 3 Psi when compared to 2014.

sources:-
http://thejudge13.com/2015/09/17/pir...-singapore-gp/

http://thewptformula.com/2015/09/19/...-in-singapore/

Great so that puts the tire pressure argument to bed then as the PSI was larger in the previous two events which they won.