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Finn Ghost Profile
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Date Registered: 07-2011
Location: Southern Finland
TOTAL POSTS: 68
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Re: Oversized Tires on T30? Is it possible, anyone done it?


I thought that I'd report my experiences with oversized tires on a T30. For summer I have 235/70R16 BFG All-Terrain T/A KO tires on 30 offset wheels and for winter 235/75R15 Goodyear Wrangler Duratracs on 35 offset wheels.

I have had to reshape the wheel wells a little but nothing too radical (with a hammer, no cutting was involved). Only the front wheel wells were necessary (tires were rubbing on metal) to do but I did the rears also, just in case. I can post pics later if anyone's interested.

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Henri
2006 T30 Series II 2.2 dCi
3 inch lift/163hp/373Nm/Front & rear diff bash plates/Braided brake lines/Bull bar/Stainless side steps & rear bar/Fuel burning heater/Tinted windows

6/Mar/2013, 8:55 pm Link to this post Send Email PM   Send Private Message
 
Ian Ewin Profile
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X-TRAIL FANATIC
 


Date Registered: 03-2012
Location: Newcastle, NSW
TOTAL POSTS: 471
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Re:


quote:

Kev, is it the increased offset on wider tyres that increase the pressures on the cv joints?



Old thread, but might as well clear it up. An increased offset will actually have the wheel sitting closer to the car, not further away. Ie. The standard offset on a T31 is 45 and I have 20 on mine.. and my wheels actually extrude from the wheel-wells.

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Ian X-2305(c)
New: 2010 NT Pajero
Old: 2008 T31 Xtrail "The Monster"
The only one of her kind.. may she rest in peace :(
10/Mar/2013, 5:44 pm Link to this post Send Email PM   Send Private Message Blog
 
Finn Ghost Profile
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Date Registered: 07-2011
Location: Southern Finland
TOTAL POSTS: 68
Reply | QUOTE
Re: Oversized Tires on T30? Is it possible, anyone done it?


quote:

Ian Ewin wrote:

Old thread, but might as well clear it up. An increased offset will actually have the wheel sitting closer to the car, not further away. Ie. The standard offset on a T31 is 45 and I have 20 on mine.. and my wheels actually extrude from the wheel-wells.



Yeah, and changing the offset (increasing or decreasing, doesn't matter) puts more strain on the wheel bearings but not the CV joints. Small changes are ok but changing it too much means increased wear. Bigger (heavier) tires are what puts more strain on the CV joints.

Btw, 20 offset wheels on a T31, I'd like to see that. Got pictures?

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Henri
2006 T30 Series II 2.2 dCi
3 inch lift/163hp/373Nm/Front & rear diff bash plates/Braided brake lines/Bull bar/Stainless side steps & rear bar/Fuel burning heater/Tinted windows

11/Mar/2013, 4:59 pm Link to this post Send Email PM   Send Private Message
 
Ian Ewin Profile
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X-TRAIL FANATIC
 


Date Registered: 03-2012
Location: Newcastle, NSW
TOTAL POSTS: 471
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Re:


Agreed. Yeah, either check out the oversized tyres for T31 thread or my member's thread for photos.

---
Ian X-2305(c)
New: 2010 NT Pajero
Old: 2008 T31 Xtrail "The Monster"
The only one of her kind.. may she rest in peace :(
15/Mar/2013, 2:33 pm Link to this post Send Email PM   Send Private Message Blog
 
Finn Ghost Profile
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Date Registered: 07-2011
Location: Southern Finland
TOTAL POSTS: 68
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Re: Oversized Tires on T30? Is it possible, anyone done it?


Nice, I like the wide stance and the aggressive tires. emoticon And I'm jealous of those wheels, couldn't find anything like that here that would've fit my budget.

Here's some pics of the Duratracs on my T30:
Image Image Image Image

And the BFG A/Ts:
Image Image

---
Henri
2006 T30 Series II 2.2 dCi
3 inch lift/163hp/373Nm/Front & rear diff bash plates/Braided brake lines/Bull bar/Stainless side steps & rear bar/Fuel burning heater/Tinted windows

20/Mar/2013, 5:26 pm Link to this post Send Email PM   Send Private Message
 
Andrew0024 Profile
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X-TRAIL NEWBIE
 


Date Registered: 11-2013
TOTAL POSTS: 3
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Re: 225/75/16


I have read through all the comments in this thread and have not seen anyone discuss putting 225/75/16 tyres on a T30. I have fitted a 30mm EFS suspension lift so I have a bit more room for bigger rubber. I know that the 225/70/16 is probably the most sensible(and legal!) option but the choice of tread patterns is so limited and I really wanted to get the Cooper ST maxx which only comes in the 75 profile.
Has anyone fitted this size. If so I would like to hear how they fit in regard to clearance inside the wheel arch and also how badly it affected the speedo. Also does the extra rolling diameter make the car very slow and gutless on the road when taking of and overtaking etc.
20/Dec/2013, 4:30 pm Link to this post Send Email PM   Send Private Message Blog
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5975
Reply | QUOTE
Re: Oversized Tires on T30? Is it possible, anyone done it?


I have the 225/70/16 Yokohama's on mine and the speedo is about 1% over so the 75 profiles will be more than that and could lead you into trouble with speed cameras if your speedo is reading too far out.

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Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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21/Dec/2013, 8:29 am Link to this post Send Email PM   Send Private Message Blog
 
Stretchamaximus Profile
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Date Registered: 08-2013
Location: NTH QLD
TOTAL POSTS: 41
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Re:


Yeah I'm running 225/75/16 BFGs and they don't scrub or any thing. I don't have a lift kit or any thing, they just fill the guards nicely..

Speedo is out by about 5 kms at 100km/hr.. So I just sit 5 kms under at each speed lol

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Stretchamaximus
Member number X - 3273
2003 - T30 Black on black :)
Sitting on a beach in NTH QLD


24/Dec/2013, 9:39 am Link to this post Send Email PM   Send Private Message Blog
 
GOODBEER Profile
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Date Registered: 11-2014
Location: Bankstown, Sydney N.S.W
TOTAL POSTS: 72
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Re:


Sorry to dig up an old thread

I have found Info on a Nissan page stating that standard tyre is 215/65R16 which is an Overall Diameter of 686mm

I guess my question now is are the 215/70R16 (overall Diameter of 708mm) I have on mine considered Legal considering the Overall Diameter is 22mm above the standard ones??




I've edited to add in some crazy Mathematics I just did.

Using my old maths knowledge and a Calculator the 686mm tyre has circumference of 2155.132560362598mm which means the tyre rotates approx 464 times per Kilometer

(1,000,000 mm per KM divided by circumference)

The 708mm trye has circumference of 2224.2475987415737mm which if you multiply by 464 rotations, then divide the result which will be in mm by 1000 to work out metres, it adds up to approx extra 32metres per Kilometer,

Or in other words the larger Tyre only needs to rotate approx 449 times per Kilometer.

This could also be having an effect on my fuel consumption which is around 430km'tank of Petrol

Yes Im a freak and there be my Backdoor brag on my maths knowledge emoticon

Last edited by GOODBEER, 24/Nov/2014, 8:30 pm


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Jason: X-3952 (c)

2004 T30 Ti Petrol Auto
24/Nov/2014, 7:50 pm Link to this post Send Email PM   Send Private Message Blog
 
dlpeek Profile
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X-TRAIL VETERAN
 


Date Registered: 12-2010
Location: Macquarie Fields SYDNEY
TOTAL POSTS: 988
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Re: Oversized Tires on T30? Is it possible, anyone done it?


Jason,
Have a look at item 13 under wheels and tyres in attached link applicable to NSW. The publication is dated 8 November 2013 (Rev3) so is fairly recent.

http://www.rms.nsw.gov.au/documents/roads/safety-rules/standards/vsi-06-light-vehicle-modifications.pdf

It states that no certification is required for a 7% increase in tyre diameter over original diameter.
So, 7% of 686mm is 48.02 mm. Add 48.02 to your 686 then you are allowed up to 734.02.

Hope this helps you to decide......Not sure about other States.

cheers

---
Dave Peek
X-1756 (c)
2010 T31 ST-L (S2) CVT Precision Grey.
Tow Bar, bash plates, PEDDERS lift, YOKO GEO AT/S tyres.


25/Nov/2014, 7:04 am Link to this post Send Email PM   Send Private Message Blog
 


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