Member Since: 08 May 2016
Location: Essex
Posts: 422
Winter tyres
Good evening I am looking at a set of winter tyres for my discovery an have a couple of questions if somebody could help first is are winter tyres wort it on a discovery. Also how much tread would a new set have on them approx just the ones I am looking at locally are part worn and have 6mm on them cheers steve
29th Nov 2020 8:10 pm
markate
Member Since: 17 Sep 2011
Location: England
Posts: 704
I've got them on my D4 and on a couple of occasions on the autobahn they've proved to be life savers in snowy/freezing rain. Winter tyres need to have a minimum of 4mm tread depth (legal requirement in Germany and Austria) but also start to lose efficiency when 4/5 years old so check the age as much as remaining tread.
29th Nov 2020 8:17 pm
pagoda
Member Since: 13 Aug 2009
Location: Not London Anymore (or the US for that matter)
Posts: 1929
I've run winter and 'summer' tyres on my LR3s and 4s and hands down in the winter tyres are worth it. I got them originally due to the fact that they are mandated in Germany where I had several postings, so had no choice. I've also lived only in the SE of the UK where the temperatures didn't really get as low, but in the winter were below the 7 degree threshold where proper winter tyres start to outperform summer tyres (and as the temperature falls, so that 'out-performance' delta increases). There's no question whatsoever that winter tyres brake better and have better traction below 7 degrees (some great videos done by (I think) whatcar or autocar that demonstrate the significantly improved braking distances). The question is whether the temps where you are make it worth it. A mild winter in the SE UK can see temps stay above 7 degrees quite often and above 7 degrees the normal tyre will outperform the winter tyre. It's a difficult choice in the south of the UK.
I'm current in the E United States where winters can be quite harsh and am thinking of getting a set this year if I can stretch to it. I've run new Pirelli ATRs here all year round and my front wheel drive GTI with winter tyres had significantly better grip on fresh snow than the LR3 running the new ATRs. Absolutely night and day in comparison.
To your point on wear, look carefully at the minimum tread requirements on the brand you're looking at. Winter tyre performance starts to fall off when the tread is worn much like any other tyre.PAGODA
29th Nov 2020 8:22 pm
Steve17
Member Since: 08 May 2016
Location: Essex
Posts: 422
Cheers for the info the tyres I am looking at are Pirelli scorpion winter tyres and have 5mm left but I don’t know how much they come with from new as I have only ever put new grabbers on and they have about 10mm
29th Nov 2020 8:43 pm
Trailered Movements
Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1200
What size tyres are you looking for?
Dave2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago)
29th Nov 2020 8:49 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73079
5mm is prob not far off change depth, not worth buying something so low. We changed the Conti winters on SWMBO’s car as they started to not be as good on ice.
29th Nov 2020 8:50 pm
Steve17
Member Since: 08 May 2016
Location: Essex
Posts: 422
Standard 225/55/19
29th Nov 2020 8:50 pm
Trailered Movements
Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1200
OK, can't help there with that size.
I seem to recall that 4mm is a safe minimum, much less and they don't work as they should, similar to 2mm on a 'normal' summer tyre.
Dave2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago)
29th Nov 2020 8:54 pm
Steve17
Member Since: 08 May 2016
Location: Essex
Posts: 422
Would 255 50 19 be ok on a discovery or are they no use
29th Nov 2020 9:02 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73079
RRS size, you’d need to check the load rating.
29th Nov 2020 9:04 pm
Steve17
Member Since: 08 May 2016
Location: Essex
Posts: 422
The advert says they came off a BMW X5 from the advert all I can see is 107v on the side there also run flat if that makes a difference
29th Nov 2020 9:10 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73079
Yes, too low. Meant for a much lighter car. D3 needs 111 ISTR, D4 a bit lower.
29th Nov 2020 9:13 pm
Steve17
Member Since: 08 May 2016
Location: Essex
Posts: 422
Cheers if I find one with the correct load rating would the physical size be ok
29th Nov 2020 9:16 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73079
Over read, I think. diameter is less. So 1 turn of roadwheel takes you less far than car thinks it did..
Dean
====================================
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... All LED interiors lights, DRLs, Spare Wheel protector.
