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Vadermort
X-TRAIL NEWBIE
Date Registered: 07-2014
TOTAL POSTS: 17
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Re: Oversized Tires on T30? Is it possible, anyone done it?
Figured I'd add my recent experience on oversize tyres to the thread
Goodride SL369 A/T - My Experience
Currently running these in 225/70 R16 on my T30 ii. With this 'P' rated tyre, I have not experienced any scrubbing on full lock (I do have a small lift from my King Springs).
I have done about 26,000 km on hard sealed and unsealed roads in the Kimberley over the past 2 years (about 30/70 offroad/onroad). They're are pretty much done at this point. I expect you would get at least 35,000 km on more forgiving roads with the occasional offroad foray. Tyres have actually performed beautifully despite the punishment - wear has been pretty even even without me adjusting the camber post coil spring lift.
So...VERY decent tyres for the money, when used within their limits. I'd recommend them if you live in less punishing country or only venture offroad occasionally.
Other Considerations
With that said, getting decent, capable A/T replacement tyres, especially in LT construction in that size can be difficult in remote areas. Most shops only stock H/T tyres in that size. The only 225/70 LT rated ones I could find are BFG KO2s at Toyo Open Country A/T II. And they are not cheap...gonna set me back close to $1,800 for a set of 6!! Worth considering if you run into tyre problems in remote areas.
As a side note, I test fitted some Cooper AT3 LTs in 225/75 and a similar 235/70 tyre yesterday. The 225/75 scrubbed on the front inner/rear area of the wheel well at near full lock so that was out of the question. The 235/70 fitted but were really quite tight (about 8mm clearance at closest point at full lock). My tyre dealer recommended against that size.
So now I have to choose between the BFG KO2 (have heard negative things recently) and the Toyo AT IIs...Anyone got any thoughts?
--- JJ - Environmental Scientist
2004 T30(ii) Ti-L
Shi**y Roof Basket, In-car Oricom UHF, Kings 2x2.5m Awning, 225/70/R16 Westlake SL369 A/T tyres, King Springs 30mm lift, Stedi 17" Lightbar
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25/Sep/2019, 7:00 pm
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roid
X-TRAIL ENTHUSIAST
Date Registered: 05-2017
TOTAL POSTS: 103
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Re: Largest on T30
Looked deeper into ideal options for the right semi-serious A/T 'trail tyre' (in my def'n this has to be safe and friendly on the road, this means no muddies and even aggressive A/T's are out).
Started looking up-sizing to 17" rims (tyre options for 225/60/17 are $140-$170ea), but given that extra wall is more important (no doubt why so many members stick with the factory 16x6.5" rims, and simply increase the tyre profile up to 75). Far better A/T options in this size too, but 215/75x16 SL369 Goodride A/Ts at $95 each are the most tempting of all. Many muddy options are abound in this size, but as I said, I'm not wanting to add those.
The other part of me is thinking the same tyres in 225/60x17 on 7.5" rims would be far better on the road, where a T30 isn't at its best. Far less tyre roll too. A little less profile offroad, but as I'm going to lift the T30 at least 30mm, it could all an exercise in futility.
Anyhoo, there seems two ways to go. Any other approaches? Has anyone found any better options before I settle for one or the other? Maybe it is better to increase track up to, say, 10mm. If I find a rim option with a lower ET than 40, such as ET35, this may be possible. Many thanks in advance!
Last edited by roid, 27/Jul/2020, 1:03 pm
--- 05 T30 ST-X Auto
205/75x16 A/Ts on 6.5" ET40
200k: Refreshed suspension,fuel, ignition & cooling systems
Often good & dirty as is lifted 35mm on Sachs Automatics & poly bushings
Northern Sydney, NSW
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21/Jul/2020, 11:40 am
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6355
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Re: Oversized Tires on T30? Is it possible, anyone done it?
I have 225/70/16 Yokohama GO12 AT with my 50mm strut lift on standard rims.
On get a little rubbing on the inside of the left splash guard on full right lock as the wheel compresses up into the guard. This can be fixed by altering the fixing point of the guard.
They also make the speedo more accurate and a little more clearance with the increased wheel diameter.
Very quiet onroad and rated one of the best offroad behind the BFG A/T and very good puncture resistance.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
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21/Jul/2020, 6:40 pm
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roid
X-TRAIL ENTHUSIAST
Date Registered: 05-2017
TOTAL POSTS: 103
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Re: Oversized Tires on T30? Is it possible, anyone done it?
Great info, @RevheadKev. So far the G015s are double the money these Goodrides go for. If I go to $200/corner I'd probably plump the extra for BFG KO A/Ts, so might need to get some more prices first. Still hoping to fettle 215/75s ($95) on somehow. These offer the benefit of working on stock rims, (only the profile is different), are plainly within NSW regulation and the slightly narrower width may work in their favour over your 225/70s. But, they are different tyres, so the comparisons are entirely theoretical.
Tyre size -- O.D. -- ^%
215/65 R16 686 mm +0%
215/75 R16 729 mm +6%
215/70 R16 707 mm +3%
225/70 R16 721 mm +5%
225s offer little benefit for my type of 'all purpose' use, am more keen to avoid fouling. No qualms moving plastic cowls or grinding non-structural bits to maintain clearance. Also keen to minimise added unsprung weight. Given that the inner guard is rubbing at +5% diameter and +10mm width, a sensible tolerance is to use 215/70s. There is always a bit of variance in the alignment of the suspension components, plus give in the rubber bushings, and the dark forces of chassis movement can require more clearance than people think when under dynamic loads.
Def need to measure up the tyres if I want to try the 215/75, or an 'unproven' type of 225/70. (Wiz_Au and Vadermort above are reporting the Goodride 225/70 worked out). Anyhow, thanks @RevheadKev, it's really good to know some 'fettling' is possible if things get tight.
Last edited by roid, 27/Jul/2020, 3:35 pm
--- 05 T30 ST-X Auto
205/75x16 A/Ts on 6.5" ET40
200k: Refreshed suspension,fuel, ignition & cooling systems
Often good & dirty as is lifted 35mm on Sachs Automatics & poly bushings
Northern Sydney, NSW
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27/Jul/2020, 3:11 pm
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6355
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Re: Oversized Tires on T30? Is it possible, anyone done it?
Use the link at the top of the forum Peter to check tyre sizes and dimensions compared to stock. It is the icon with the tyre symbol.
To be equivalent to the 215/65/16 on a 15" rim it shows you either need a 235/65/15 or a 205/75/15 otherwise the rolling diameter is larger and the speedo will be out by around 6-7%
That doesn't say they won't fit, just that there are things you need to keep in mind regarding speed and wheel well clearences.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
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14/May/2021, 1:47 pm
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