Member Since: 03 Sep 2017
Location: essex
Posts: 18
19 or 20 inch wheels?
Hi all,
I've been offered a set of 20 inch disco wheels which look great but wondered what the pros and cons are of 20 inch versus 19 inch??
Thanks all
7th Jul 2019 9:24 am
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Bigger the wheel, the smaller the tyre sidewall, the harder the ride.
7th Jul 2019 9:53 am
tayaste
Member Since: 15 May 2013
Location: Chester
Posts: 7633
+1^^ Go smaller if possible.
7th Jul 2019 1:58 pm
Red Merle
Member Since: 30 Aug 2014
Location: Liskeard
Posts: 7441
There’s a happy medium to hit.
Too small a sidewall and the ride will be harsh, the wheels and tyres will be vulnerable to damage and the weight, of the wheel & tyre combined, will be heavier (unsprung weight is never a good thing for handling). Combine the low sidewall with wide rubber and look forward to tramlining
Too tall a tyre sidewall and the handling can become a little vague, especially at high speeds on motorways when it may appear to wander a little.
Given the choice again, I’d go for 18’s on a D4, but 19” is probably optimum for regular road use.
Mind you, it won’t stop someone coming along and telling us that their 22” rimmed D4 runs perfectly and their missing fillings aren’t remotely a problem either 2011 - 2015: 3 x FL2
2015 - 2017: 2 x D4
2017 to date: FFRR SDV8
2023 to date: 2 x FL2 as “second” cars 🙄
2021 to date: Hinckley built ‘14 Triumph Trophy 1200
2022 to date: Hinckley built ‘14 Triumph Trophy 1200 & sidecar!
(One of only two known to exist in the world!)
7th Jul 2019 2:32 pm
LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23830
First modification I’ve done on my last three D4’s is to remove the 20” rims and replace with either 19” LR rims or 18” Compomotive PD1881.
I take usability, practicality and comfort over styling though. So each to their own. 👍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)
7th Jul 2019 2:45 pm
BAZ8046
Member Since: 26 Feb 2010
Location: Chatham
Posts: 280
I agree, I run my D4 on 19’s and the ride is much better.
The 20’s that came on the car only stayed on for a few months and are still in the shed.D4 2016 Landmark, Waitomo Grey.
D3 2005 HSE, Bonatti Grey, now sold but still comes back for servicing.
Defender 2002 Td5 Commercial, had a hard life but slowly being restored.
I only work so I can afford to repair my Land Rovers!
7th Jul 2019 9:04 pm
Gilly1
Member Since: 09 Sep 2015
Location: Somerset burnham on sea
Posts: 359
BAZ8046, Just out off interest what 20s are they. 2015MY discovery 4 se tech with factory black pack.
With added
Rse, tv, electric memory seats, rear camera, heated steering wheel,
Headlight dip assist, remote FBH, led door light pack,easy lift kit,osram front fog/drl/active cornering lights. and whatever els I can find to do,
7th Jul 2019 9:21 pm
BAZ8046
Member Since: 26 Feb 2010
Location: Chatham
Posts: 280
Hi, 511’s which the Landmarks came with.
Picture below is when the car was new.
Now on D3 HSE wheels.
D4 2016 Landmark, Waitomo Grey.
D3 2005 HSE, Bonatti Grey, now sold but still comes back for servicing.
Defender 2002 Td5 Commercial, had a hard life but slowly being restored.
I only work so I can afford to repair my Land Rovers!
8th Jul 2019 7:48 pm
ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15264
I've always run 20s and don't find the ride quality an issue.
Then again, I've ran with wider tyres (285/50 & 275/45), so I've got extra cushioning, but over the width rather than height.
About to put some Grabber AT3 275/45/20s on the new 511s this week....... always on the road less travelled 🚧
8th Jul 2019 8:18 pm
Slug
Member Since: 07 Feb 2012
Location: East Midlands
Posts: 346
Surely a 20” wheel with a 255/55x20 will ride the same as a 19” 255/55x19 unless I’m missing something??Still lurking, although moved to the dark side: disco5.co.uk
2019 D5 HSE
2019 Baby RR First Edition
8th Jul 2019 9:37 pm
LIAMMCL
Member Since: 27 Aug 2013
Location: Northumberland
Posts: 414
I'd say the 19s are about 15-20% more comfortable on the road
8th Jul 2019 10:00 pm
LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23830
Slug wrote:
Surely a 20” wheel with a 255/55x20 will ride the same as a 19” 255/55x19 unless I’m missing something??
I’ve not tried a D4 with non standard tyre sizes.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)
8th Jul 2019 11:57 pm
Scott_fd2
Member Since: 05 Jul 2019
Location: Ayrshire
Posts: 10
Baz8046 i dont suppose you would sell your 511s that are still in the shed? feel free to Pm me.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
feel free to Pm me. 
