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comports



Member Since: 20 Dec 2010
Location: Colchester
Posts: 1698
United Kingdom 2016 Range Rover Autobiography SDV8 Mariana Black
Calibrate new tyres

HI All,

Having just updated my tyres to 255 55 20's they are obviously slightly taller than the 50's that came off. I read on here that the speedo will be slightly out now.. IS there anything I should do (perhaps with IID) to recalibrate the dash to the new style tyres..?

Thanks Ash
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2016 SDV8 AB
Post #373354 21st Feb 2016 10:03am
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Cam-Tech-Craig



Member Since: 03 Aug 2011
Location: Gloucestershire
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England 2015 Range Rover SVAutobiography SDV8 Loire Blue

No Ash... At 70mph i think the difference was less than 3mph so no real point Thumbs Up
Post #373356 21st Feb 2016 10:18am
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stan
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dont think there is Ash..

factory speedos are said to read slightly less than actual speed so with the 55's just remember that when the speedo says 70mph you'll be doing more or less spot on 70..







 ... - .- -.




Y. O. L. O.
.
Post #373357 21st Feb 2016 10:22am
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comports



Member Since: 20 Dec 2010
Location: Colchester
Posts: 1698
United Kingdom 2016 Range Rover Autobiography SDV8 Mariana Black

Thumbs Up Thanks chaps - as always.... Ash
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2016 SDV8 AB
Post #373358 21st Feb 2016 10:23am
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MR GLOVER



Member Since: 03 Jan 2015
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Have you got any pictures ash? just so i can see what thay look like on the 20s
Post #373361 21st Feb 2016 10:37am
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Alistair



Member Since: 11 Feb 2011
Location: Peterborough / Bordeaux / Andorra
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The sidewall is 1.3cm taller - I'd be very surprised if you can tell the difference from a picture.....
Post #373377 21st Feb 2016 1:23pm
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Cam-Tech-Craig



Member Since: 03 Aug 2011
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Oh they do look better Alistair... There is a noticeable visual change sir Thumbs Up
Post #373379 21st Feb 2016 1:31pm
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Alistair



Member Since: 11 Feb 2011
Location: Peterborough / Bordeaux / Andorra
Posts: 7926
United Kingdom 2013 Range Rover Vogue SE SDV8 Santorini Black

Wow - I'm surprised given that there's 5mm of tread between a new & worn out tyre - but I guess they fill the arches better Thumbs Up
Post #373380 21st Feb 2016 1:33pm
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Cam-Tech-Craig



Member Since: 03 Aug 2011
Location: Gloucestershire
Posts: 16284
England 2015 Range Rover SVAutobiography SDV8 Loire Blue

Consider the difference between a 285/35/22 & the factory size of 275/40/22 Alistair... Whistle Thumbs Up
Post #373382 21st Feb 2016 1:40pm
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comports



Member Since: 20 Dec 2010
Location: Colchester
Posts: 1698
United Kingdom 2016 Range Rover Autobiography SDV8 Mariana Black

Here you go

Click image to enlarge
 Ash
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2016 SDV8 AB
Post #373418 21st Feb 2016 5:50pm
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DSCOOPS



Member Since: 15 Jul 2015
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Thumbs Up
Post #373459 21st Feb 2016 7:44pm
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MR GLOVER



Member Since: 03 Jan 2015
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Like em Thumbs Up
Post #373476 21st Feb 2016 8:56pm
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jonnyboy54321



Member Since: 29 Jan 2016
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Yeah baby, thats how mine is gonna look this weeks. Looks like we're keeping the 7 spokes, the Mrs got me plastered and made me agree !!
Post #373479 21st Feb 2016 9:02pm
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johnboyairey



Member Since: 11 Jan 2013
Location: surrey
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I fitted a set of supersize 285 50 20 on some RR sport sized rims. I new the size would be slightly wrong on the speedo, so I downloaded a coupe of speedo apps on my phone, and at 70 on the binnacle, they are showing 70 on both apps.
Weird!
Post #373503 22nd Feb 2016 12:35am
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Cam-Tech-Craig



Member Since: 03 Aug 2011
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England 2015 Range Rover SVAutobiography SDV8 Loire Blue

Much better Ash Thumbs Up
Post #373506 22nd Feb 2016 1:29am
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