I have asked this in another thread but thought I'd make it a bit more prominent.
Currently looking for tyres and most websites say I need 255/55R19 111 rated tyres. And that's what I have at the moment so is what I expected.
Some sites - Costco being the one of main interest due to a current offer - show 107 rated tyres as suitable.
I looked in handbook and it muddied the waters totally ...
as it shows 107 is good but doesn't list the 255/55 size (it's mentioned in the "Winter Tyres" section but doesn't include load rating )
since "107" translates as rated for 975kg (111 is 1090kg) and t'internet says "Curb weight 2,396–2,583 kg (5,282–5,695 lb)" (assuming that's a US site due to curb not kerb)
then that's surely under 650kg per corner so the 107's have a safety margin of ~50% so why wouldn't they suffice ?
your thoughts please oh wise ones.
This post has been moved to "Wheeeeels and Tyrrrrrres" by the site administration team .
Dean
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2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms
no-one ? (aside from LT who admits to not being helpful )
I might just ring my insurance company.
15th Oct 2020 8:20 am
DG Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50978
The insurers would have more of an issue with load rating than speed rating IMO...e.g. I had the older MTRs with a 99mph speed rating ... they accepted them on the basis that I shouldn't be doing that speed in any case.
ISTR from previous threads that the issue with load ratings are circumstances when a greater level of the weight of the vehicle temporarily rests on one or two tyres.21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
From what I'm finding the load rating is linked to the speed rating ... so you're right that it's for circumstances beyond normal driving.
so a 111H tyre will stand suddenly getting 1090kg of weight applied if you were to slam on the brakes at 130mph.
Last edited by Hardware on 15th Oct 2020 8:35 am. Edited 1 time in total
15th Oct 2020 8:34 am
LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23823
I’d feel more comfortable sticking with 111, despite the lure of a Costco bargain. 👍2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography (now semi-retired)
rang Costco and they checked ... and offered Goodyear Eagle F1 Asymmetric 2 255/55 R19 111W for slightly less money than the 107V VECTOR-4-SEASON-SUV-G2 instead.
downside is they don't have 4 tyres in stock but will honour the deal for tyres ordered before it expires on Sunday.
15th Oct 2020 10:09 am
Trailered Movements
Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1200
The more the sidewall height is in relation to tyre width, the higher rate you need.
Basically it's to do with sidewall deformation under load, it might do the weight of the vehicle, but under certain circumstances forces might impose a greater weight than that which exceed the designed values.
In normal circumstances this would more than likely never happen, but the manufacturers need to cover all bases when some in society feel the need to litigate for their own incompetence.
Dave2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago)
15th Oct 2020 10:10 am
RRSTDV8
Member Since: 07 Apr 2014
Location: Here
Posts: 13541
I thought 255/50/19 (as shown in the OP picture) was the RRS1 size only.Visiting from rrsport.co.uk
2012 RRS SDV6
2008 RRS TDV8
"When you fire that first shot, no matter how right you feel, you have no idea who's going to die! You don't know who's children are going to scream and burn. How many hearts will be broken. How many lives shattered. How much blood will spill, until everybody does what they were always going to have to do from the very beginning: SIT DOWN AND TALK!"
15th Oct 2020 10:13 am
Gazellio
Member Since: 08 Jan 2011
Location: Chilterns
Posts: 4130
Cooper Weather-Master WSC 255/55 R20 110T XL
I run these Summer/Winter on both my Discoverys they hard wearing good value and extremely grippy while being quite quiet and looking great. Get you out of touble in the Ice/Snow too....
Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10352
the handbook info looks wrong, as it shows 17's and 18's, and 235 and 50 series tyres, which aren't correct for D4. Go off the label on the door.
So 111's if running 19's, and 109's if running 20's
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the 107 rating is on the RR Sport which is slightly lighter and hence needing a lower load rating per tyre.1972 Range Rover Classic 2 door V8
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... All LED interiors lights, DRLs, Spare Wheel protector.
... label on drivers door says 255/55 r19 111
