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Compmotive 18 vs OEM 17
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cestor
 


Member Since: 20 Sep 2010
Location: Israel
Posts: 95

Israel 2008 Discovery 3 4.4 V8 HSE Auto Stornoway GreyDiscovery 3
Compmotive 18 vs OEM 17

Which do people think is better for serious off-roading? Probably paired with Coopers STT

Went through 6 AT tyres in the last 6 days with 19" and decided that they are just the wrong size and type for off-roading.
  
Post #191584117th Feb 2018 8:13 pm
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tayaste
 


Member Since: 15 May 2013
Location: Chester
Posts: 7481

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

I run 17 with cooper st for playing on the rough stuff. If you can get away with 17’s, why go for 18’s ??
   
Post #191585617th Feb 2018 9:06 pm
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John P
 


Member Since: 12 Aug 2011
Location: West Sussex
Posts: 1108

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Lugano TealDiscovery 3

I have also gone through 19" Duratrac's, by slicing the side walls when off road, and they weren't that old either. Big Cry Went with the 18" compomotives as I had the Brembo conversion. I have Cooper STT's as well. Not looked back. Thumbs Up
  
Post #191586217th Feb 2018 9:16 pm
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xcentric
 


Member Since: 01 Apr 2015
Location: Shropshire, UK
Posts: 1073

2012 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

the general view is that the more sidewall, the better for offloading - so I'd go with 17's over 18's if I could. I have a D4 and so need Compmotive 18's but they're much better than 19's off road.
  
Post #191590518th Feb 2018 12:13 am
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df_tom
 


Member Since: 09 Mar 2017
Location: Stuttgart
Posts: 100

Germany 2007 Discovery 3 TDV6 S Auto Zermatt SilverDiscovery 3

17 for sure. Proper offroad tires start at /80, with 17" you can easily fit 245/70/17, starting with 265 you might have to watch if nothing on full lock or wheel full up.

Have a look at the mudtech4x4 site, they have 17" rims with proper load ratings. Cheap originals might be the way as well, you decide.

That said, i have no idea what kind of tire you prefer, and especially which sizes are available at the moment. I'd suggest to start with the tire.

I checked Mayerosch.at for BFG MT, and they don't even have 18" at the moment...

Time for the big spreadsheet i guess.
  
Post #191593518th Feb 2018 8:55 am
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cestor
 


Member Since: 20 Sep 2010
Location: Israel
Posts: 95

Israel 2008 Discovery 3 4.4 V8 HSE Auto Stornoway GreyDiscovery 3

Thanks everyone!
  
Post #191594118th Feb 2018 9:17 am
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biskit
 


Member Since: 23 Dec 2009
Location: in my Mancave.
Posts: 1255

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

I had 265x70x17" GGat2s before Brembo. They were a great all round tyre, never had a problem Greenlaning. Now have 265x70x18" Cooper Discoverer AT2s on Compomotive wheels, again great for all types of road/track driving. Even after owning my D3 9years I can't stop the mods.
 Mantec sump guard.
Prospeed tree slider/steps.
Flack duel battery system.
18"Compomotive/AT3 tyres
Brembo 4pot front brakes 
 
Post #191594818th Feb 2018 9:42 am
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df_tom
 


Member Since: 09 Mar 2017
Location: Stuttgart
Posts: 100

Germany 2007 Discovery 3 TDV6 S Auto Zermatt SilverDiscovery 3

Where he lives, Mud is not the most important topic.

He probably needs super stable sidewalls, big bite on the sides as well, and the ability to air down for the sandy parts inbetween.

If money is of no concern, shop around for beadlock rims.
  
Post #191595218th Feb 2018 9:58 am
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LT
 


Member Since: 31 Dec 2005
Location: South West
Posts: 9382

2016 Discovery 4 3.0 TDV6 Landmark LE Auto Santorini BlackDiscovery 4

I ran OE Land Rover 18" rims on my D3 for a while, a brilliant combination IMO. Although for off-road use 17" rims will be superior.

However, with 18" rims, you can still fit the D3 V8 brake upgrade and for me 17" rims were just a little too roly-ploy on road.
 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!) 18" Compomotive PD1881 rims. 
 
Post #191625218th Feb 2018 11:13 pm
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cestor
 


Member Since: 20 Sep 2010
Location: Israel
Posts: 95

Israel 2008 Discovery 3 4.4 V8 HSE Auto Stornoway GreyDiscovery 3

I actually have a v8 with the big brakes as standard. Will that be an issue with getting 17 inch rims?
  
Post #191626819th Feb 2018 6:30 am
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: No longer in a D4 :-(
Posts: 62220

United Kingdom 

Yes, they won’t fit. 18” & up for V8s.
 

11 D4 HSE - just Dee, no more Double Disco. Now gone. Big Cry Big Cry 
 
Post #191627919th Feb 2018 8:00 am
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df_tom
 


Member Since: 09 Mar 2017
Location: Stuttgart
Posts: 100

Germany 2007 Discovery 3 TDV6 S Auto Zermatt SilverDiscovery 3

that's a game changer.

Find your tire first.

Remember to check if they will be rubbing on the inside on the frame ends. might need modification.

Spacers might help, but at the sam time might raise issues on the wheel arches wheel full up, especially with extrawide tires.

I'd rather go 205/110 than 285/35, so to speak.
  
Post #191657019th Feb 2018 8:33 pm
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cestor
 


Member Since: 20 Sep 2010
Location: Israel
Posts: 95

Israel 2008 Discovery 3 4.4 V8 HSE Auto Stornoway GreyDiscovery 3

DSL wrote:
Yes, they won’t fit. 18” & up for V8s.


oh....what about if I use spacers- Can I use 17" rims with spacers?
  
Post #191873325th Feb 2018 1:09 pm
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: No longer in a D4 :-(
Posts: 62220

United Kingdom 

Sorry, no idea. Never used spacers nor payed any attention to them.
 

11 D4 HSE - just Dee, no more Double Disco. Now gone. Big Cry Big Cry 
 
Post #191873925th Feb 2018 1:16 pm
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df_tom
 


Member Since: 09 Mar 2017
Location: Stuttgart
Posts: 100

Germany 2007 Discovery 3 TDV6 S Auto Zermatt SilverDiscovery 3

most possibly not. How would spacers help with the bigger diameter of the brake?
  
Post #191937626th Feb 2018 8:50 pm
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