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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
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United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
Noise cancelling tyres
Interesting technology and it looks like JLR are the 1st to get it on a production SUV vehicle. Who else uses it?


Click image to enlarge


"The new Range Rover Sport will ‘sponge’ up road noise following the homologation of the Pirelli Noise Cancelling System (PNCS) for certain models. Pirelli will supply its PNCS-equipped P Zero as the vehicle’s original equipment 22-inch summer fitment; the tyre maker reports that the Range Rover Sport is the first SUV to be fully homologated with the Pirelli noise reduction system, and the first Land Rover product to receive the PNCS as original equipment.

The PNCS reduces the noise that each tyre produces as it runs along the road. This noise, caused by the vibration produced by air that is compressed when the tyre presses against the road, is transmitted from the tyre to the wheel hub before eventually reaching the cabin via the steering and suspension. Pirelli’s system makes use of a polyurethane sponge on the inside of the tyre. This is designed to absorb these vibrations and therefore reduce the amount of noise passed through to the cabin. According to Pirelli, the PNCS reduces noise by between two to three decibels without effecting the tyre’s other characteristics.

Range Rover Sport models fitted with the size 275/40R22 108Y XL P version of the Pirelli P Zero will receive the PNCS as original equipment. All tyres using this system have the letters ‘PNCS’ displayed on the sidewall to denote its use. In addition, this tyre has the Land Rover ‘LR’ marking so that dealers and consumers alike know that the tyre is tailor-made for Land Rover.

“We have a good relationship with Land Rover and it’s great to be homologated on another of their prestigious vehicles,” commented Pirelli UK managing director Dominic Sandivasci. “Our original equipment and R&D teams work very hard to develop products that meet all manufacturer’s needs and we’re delighted that Land Rover has decided to use the Pirelli Noise Cancelling System on the Range Rover Sport.”

http://www.tyrepress.com/2015/06/range-rov...ng-system/
Post #429672 9th Jun 2015 8:08am
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YOLO110



Member Since: 14 Feb 2015
Location: Perth Oz and Stansted UK
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Australia 
Well, if that works that is brilliant!

Electric cars will then be almost silent too! YOLO... You Only Live Once...
Post #429676 9th Jun 2015 8:20am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
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United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Re: Noise cancelling tyres
Supacat wrote:
According to Pirelli, the PNCS reduces noise by between two to three decibels without effecting the tyre’s other characteristics.


Whilst this technology is in it's infancy perhaps, with the reduction stated and the fact most tyres seem to fall within the 60-75 decibel range I wonder if it is really worth it. Bet they come at a hefty premium for the sidewall to include the 'PNCS' lettering too! If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #429690 9th Jun 2015 9:25am
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ken



Member Since: 18 Aug 2009
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Been on Audi for a while Thumbs Up
Post #429697 9th Jun 2015 10:26am
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need4speed



Member Since: 23 Nov 2012
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Much ado about nothing. Complete gimmick..
Post #429703 9th Jun 2015 10:57am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
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United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
^

Agree! For those with more money than sense I feel! Thumbs Up If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #429705 9th Jun 2015 11:00am
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ken



Member Since: 18 Aug 2009
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Surely a must for any Defender Rolling with laughter
Post #429708 9th Jun 2015 11:09am
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farmer giles



Member Since: 09 Feb 2011
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2011 Defender 110 Puma 2.4 SW Cairns Blue
what's louder SATs or 200 tdi?
Post #429715 9th Jun 2015 12:02pm
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Martin
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Pardon?  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #429717 9th Jun 2015 12:28pm
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shaggydog



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200Tdi every time, Especially if you turn the radio on Shocked Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197

Self confessed mileage hunter Very Happy
Post #429721 9th Jun 2015 12:39pm
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Simon27



Member Since: 30 Oct 2012
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Scotland 2009 Defender 90 Puma 2.4 SW Tamar Blue
Would this be anything like the white sponge 'inner tube' that I found inside an old lorry tyre on a beach once? I couldn't work out why it was there.
Post #429833 9th Jun 2015 9:45pm
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