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nickbos
Member Since: 11 Sep 2018
Location: Cambridgeshire
Posts: 72
  
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| Views on switching from 18" wheels to 17"? |
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Hi All,
I've got the opportunity to acquire a set of 17" wheels, that I'm told came off of a Disco3 that was scrapped, and I'm after thoughts on the pros and cons of moving to the slightly smaller dia - apart from the obvious that they'll go around more frequently and the tyres'll wear quicker. Anyone done this and noticed any difference in the handling etc?
Ta much in advance.
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 25th Jan 2019 7:25 am |
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highlands
Member Since: 10 Jan 2010
Location: NW Highlands
Posts: 5103
 
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The tyres will be 'taller' such that they go round pretty much exactly the same number of times any other 'correct' size wheel/tyre combination does.
So long as you've not got V8 brakes they will fit and they'll give you generally a softer, more wallowy ride due to the higher sidewall (though not all sidewalls flex the same).
I currently have 17s on my D3 HSE with the brakes changed back to standard.
I'll put the 19s or 20s back on come summer, such as it is up here, but prefer the 17s with Wintracs for winter. Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me  )
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| 25th Jan 2019 7:39 am |
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highlands
Member Since: 10 Jan 2010
Location: NW Highlands
Posts: 5103
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As for general pros/cons for road use.
smaller rim with higher sidewall - copes better with potholes/poor roads*, less liable to tramlining (though not a problem I've ever really had in the D3), softer ride, less precise cornering, look more utilitarian/don't look as 'sharp', cheaper tyres**
* and, ahem, bouncing up kerbs
* and easier to fit yourself, if you're into that. Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me )
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| 25th Jan 2019 7:48 am |
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biskit
Member Since: 23 Dec 2009
Location: in my Mancave.
Posts: 1376
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I preferred the 17" with slightly larger tyres, far better ride.  that was against 19" though. My D3 now sports Brembos so gone for 18" with larger tyres. Mantec sump guard.
Prospeed tree slider/steps.
Flack duel battery system.
18"Compomotive/AT3 tyres
Brembo 4pot front brakes
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| 25th Jan 2019 9:00 am |
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NJSS
Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10799
 
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I entirely agree with Highlands & biskit.
When I had a D3 I downsized to 17" after about 9k miles.
I used GG AT tyres and they averaged nearly 50k miles for a set of 4, and had stacks of tread left when I changed them.
I have similarly downsized wheels on my D4.
NJSS Am I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
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| 25th Jan 2019 9:06 am |
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DN
D3 Decade
Member Since: 23 Jun 2006
Location: W.London.
Posts: 2344
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Compared with 19” rims, I much prefer the softer ride of 17”. But the 17” wheels are not pretty  They won’t turn more frequently or wear tyres out quicker either, because of the change to 70 profile, the rolling circumference will be very close, or the same as, that of standard 18”/19” tyres. D3 owned from new, P017 brake recall, BAS FBHIC, new FBH, LR013487 oil pump, new water pump. RRS front lower suspension arms. New suspension compressor/ relay. New Denso alternator. CuNifer rear brake pipes. New GKN rear propshaft. New HPFP belt & tensioner. New A/C Condenser.NO WARRANTY for many many years.
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| 25th Jan 2019 9:14 am |
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LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23824
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My preferred choice is 18” rims. For my use, 17”s were just a tad to “wallowy” on corners. The biggest factor though was that I wanted to replace the discs, when they wore out, with V8 ones. 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)
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| 25th Jan 2019 10:30 am |
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davidedwardmawer
Member Since: 11 Oct 2012
Location: Gironde
Posts: 174
 
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I use the original 18" wheels with road tyres (Scorpions) and have a second set of 17" for my mud tyres (KM2's). Works fine.
(Rolling diameter is the same). 33370 Fargues Saint Hilaire
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| 7th Feb 2019 11:42 am |
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