Winter tyres ordered

Ti Rich · 12-22-2010, 09:58 AM

Managed to order a staggered set of Falken HS-439 to fit on the OE rims. Does anyone have any suggestions as to the correct pressure? (Used search)

davyk31 · 12-22-2010, 11:04 AM

Does it not say on the sticker inside the door, mine gave pressures for the 17" winters I am using.

HighlandPete · 12-22-2010, 11:05 AM

There is opinion (which includes Tirerack) that it's best to run a bit higher than the summer tyre. About 3 - 5psi higher is suggested.

There's a tech page on Tirerack with some of the reasoning.

HighlandPete

jamm · 12-22-2010, 01:42 PM

Just got my set today. 225/45/17 all round on original staggered msport alloys.
My tyres, dunlops, are not runflat so do the pressures differ from the plate recommendations?

Captain Chaos · 12-23-2010, 06:01 AM

Quote:

Originally Posted by HighlandPete

There is opinion (which includes Tirerack) that it's best to run a bit higher than the summer tyre. About 3 - 5psi higher is suggested.

There's a tech page on Tirerack with some of the reasoning.

Really? (Appreciate that it's their reasoning, not yours)

Logic would surely say to go higher on snow to make the sidewalls more rigid and softer on ice to maximise the footprint, surely?

Non-ZP tyres generally need a couple PSI more in them than ZPs, Jamm, so add that to the formula anyway..!

doughboy · 12-23-2010, 10:54 AM

The M+S pressures on my rating plate are higher than the same sizes of summer tyres.

Also if you're using a narrower rear then you'll need higher pressure to support the same weight.

Again, find the same width on your rating plate and go with that to start with.

12-22-2010, 09:58 AM	#1
Ti Rich Major 310 Rep 1,314 Posts Drives: Porsche Macan S D Join Date: Jan 2008 Location: Dudley, West Midlands, UK iTrader: (0)	Winter tyres ordered - pressures? Managed to order a staggered set of Falken HS-439 to fit on the OE rims. Does anyone have any suggestions as to the correct pressure? (Used search)
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12-22-2010, 11:04 AM	#2
davyk31 Major General 1042 Rep 6,946 Posts Drives: Macan GTS :-) & F40 M135i Join Date: Sep 2009 Location: Northern Ireland iTrader: (0)	Does it not say on the sticker inside the door, mine gave pressures for the 17" winters I am using.
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12-22-2010, 11:05 AM	#3
HighlandPete Lieutenant General 6659 Rep 15,858 Posts Drives: BMW F11 535i Touring Join Date: Mar 2007 Location: Scotland, Highland Region iTrader: (0)	There is opinion (which includes Tirerack) that it's best to run a bit higher than the summer tyre. About 3 - 5psi higher is suggested. There's a tech page on Tirerack with some of the reasoning. HighlandPete
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12-22-2010, 01:42 PM	#4
jamm Enlisted Member 1 Rep 40 Posts Drives: 320d m-sport Join Date: Jun 2008 Location: edinburgh iTrader: (0)	Just got my set today. 225/45/17 all round on original staggered msport alloys. My tyres, dunlops, are not runflat so do the pressures differ from the plate recommendations?
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12-23-2010, 10:54 AM	#6
doughboy Major General 1545 Rep 8,970 Posts Drives: 2018 M2 Comp 6MT Join Date: Jan 2009 Location: UK iTrader: (2)	The M+S pressures on my rating plate are higher than the same sizes of summer tyres. Also if you're using a narrower rear then you'll need higher pressure to support the same weight. Again, find the same width on your rating plate and go with that to start with.
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