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basshead Profile
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X-TRAIL HOLIC
 


Date Registered: 02-2004
Location: Panania, Sydney
TOTAL POSTS: 2852
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Re: bigger rims WOW


I had 18" on my pulsar - and rubber was $300 a tyre a few years ago and that was for 35 profile rubber. There were only three manufacturer's that made 18inch diameter tyres, 6 (or was it 7?) inches wide and in 35 profile (ie: wasn't a very common size)

It all depends on what rolling diameter you need to get - I'm not sure what the rolling diameter for the X-Trail is off the top of my head, but that is why there are different size (profile) tyres for the 15inch steel wheels and 16inch alloys - to keep the rolling diameter the same. You might be lucky and find that with the 18inch wheel, the profile needed to keep the rolling diameter the same as standard may be a very common size, and therefore the rubber may be cheaper.



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Rich. X-013(c)
'04 S2 ST Auto. Nudge_roofracks_tow_tints_Lightforce_GME_YokoGeoA/T-S_TBS_bashplate_50mm-spacer-lift
Click here to see >300MB of photos and videos All For His Glory.
22/Oct/2004, 4:17 pm Link to this post Send Email PM   Send Private Message MSN Yahoo Blog
 
harryzell Profile
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Date Registered: 08-2004
Location: Adelaide, SA
TOTAL POSTS: 168
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Re: bigger rims WOW


I think it's a fairly straightforward system - the more you add to one number, the more you need to reduce the other emoticon

My ST currently has 215/70 15" (from memory).

A Ti has 215/65 16", thereby keeping the same rolling diameter.

To go to 17" rims, you would need 215/60 (or 225/55 would also work, if they're not too wide.)

Therefore 18" rims would need 215/55 18" tyres (or 225/50, 235/45 etc etc.)

This is how I understand it anyway. Can anyone confirm/correct me? emoticon

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***********
T30 ST manual, Burgundy

http://www.hr4wdclubsa.org.au
22/Oct/2004, 4:54 pm Link to this post Send Email PM   Send Private Message
 
basshead Profile
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X-TRAIL HOLIC
 


Date Registered: 02-2004
Location: Panania, Sydney
TOTAL POSTS: 2852
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Re: bigger rims WOW


Harry, that sounds about right... Except I though the rubber usually went wider with larger diameter, too.

The only thing you need to remember is that as you go larger diameter, the rim also tends to go wider... That is why there was so few choices available for the 18x7 inch wheels I had on my pulsar... The rubber was 215/35, yet standard was something like 195/55R15. For me to get a wider tyre, and have more selection of rubber, I would've needed a 7.5inch wide rim, which were alot more popular in 18inch diameter, but having it that wide would've been illegal. (Legally, you can only go 1 inch wider than standard (as per RTA regulations in NSW, yet some insurance companies only let you go half an inch wider)).

Another thing that gets confusing is that the X-Trail has two standard wheel sizes - the 15 and 16inch diameter, with the 16inch being half an inch wider than the 15inch. Which one can you legally go 1inch wider? I'd say the higher of the two, as it is a standard size available from the dealer/manufacturer...

There's also the issue of how large a diameter you can go - the RTA regulations on this were abit vague - it didn't actually specify a "plus 2" (15inch to 17inch) or "plus 3" (15inch to 18inch) as the maximum, but based it on rolling diameter not exceeding 15mm (from memory) more than standard. Some police officers will defect you if you have more than a "plus 1" as their understanding or interpretation of the RTA rules is different to what you or I would interpret it as (which is why I always kept a copy of the RTA regulations on wheels in my glove-box emoticon Fortunately I never needed to show it to them).

I think I still have the document on my hard drive somewhere, otherwise it would be available on the RTA website.


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Rich. X-013(c)
'04 S2 ST Auto. Nudge_roofracks_tow_tints_Lightforce_GME_YokoGeoA/T-S_TBS_bashplate_50mm-spacer-lift
Click here to see >300MB of photos and videos All For His Glory.
22/Oct/2004, 6:16 pm Link to this post Send Email PM   Send Private Message MSN Yahoo Blog
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29089
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Re: bigger rims WOW


quote:

harryzell wrote:

I think it's a fairly straightforward system - the more you add to one number, the more you need to reduce the other emoticon

My ST currently has 215/70 15" (from memory).

A Ti has 215/65 16", thereby keeping the same rolling diameter.

To go to 17" rims, you would need 215/60 (or 225/55 would also work, if they're not too wide.)

Therefore 18" rims would need 215/55 18" tyres (or 225/50, 235/45 etc etc.)

This is how I understand it anyway. Can anyone confirm/correct me? emoticon



You're spot on with the 15" and 17" tyre sizes, in fact I've seen 17" alloys being sold at eBay for an exy with tyres and they were (255/55-17)

When I used the tyre size calculator to see if they would fit here's what I got:

Tire Size Comparison

Specification Sidewall Radius Diameter Circumference Revs/km Difference
215/70-15 150mm 341mm 682mm 2143mm 467 0.0%
225/55-17 124mm 340mm 679mm 2134mm 469 -0.4%


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22/Oct/2004, 8:06 pm Link to this post Send Private Message MSN Blog
 
Terranismo Profile
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Date Registered: 10-2004
Location: Panama
TOTAL POSTS: 46
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Re: bigger rims WOW


Well guys sorry for the late post (I've been away with some personal problems). My tires are Yokohama AVS St in 225/55R17. There's no real clearance problems with the front tires (even under full steering lock) but they are wide enough at the rear to not cuase any rubbing with the shock towers.

I have seen here some X-Trails with 19 inch and 22 inch wheels but the ride is really harsh while the rear suspension, when compressed, rides on the inner fenderwell.

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2003 X-Trail S/T AWD 5-Speed: E/DP/TA/KS/I/H/MMI/TB/BSR
Pics Here!
*"Nismo" Reservoir Covers, Oil Cap, & Oil Catch Can on the way*
24/Oct/2004, 12:56 pm Link to this post Send Email PM   Send Private Message
 
hscher Profile
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Date Registered: 03-2005
Location: Melbourne, Australia
TOTAL POSTS: 18
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Re: bigger rims WOW


I am running 18 X 8 rims on my x-trail using 255/45R18 Pirelli Scorpion Zeros. I haven't experienced any problems with rubbing and guard clearance does not seem to be a problem. the rims and tyres were supplied and fitted by donnellans in melbourne and i think they checked all these details before fitting them. handling is much much better on road than before with stock 16's. for photos check out http://www.cardomain.com/memberpage/804850
5/Apr/2005, 12:00 am Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29089
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Re: bigger rims WOW


Very nice hscher,

What brand rims are these?



Last edited by jalalski, 5/Apr/2005, 4:46 pm


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5/Apr/2005, 12:20 am Link to this post Send Private Message MSN Blog
 
hscher Profile
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Date Registered: 03-2005
Location: Melbourne, Australia
TOTAL POSTS: 18
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Re: bigger rims WOW


the rims are ANZ/Avantek Vapour 18X8 in shadow chrome. yes i do still have the stock 16's with me. available for sale if anyone in melbourne is willing to buy but yea otherwise will leave it and put them back on the car later when the time comes to sell.
5/Apr/2005, 1:21 am Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29089
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Re: bigger rims WOW


Boyz,

I just scored a set of 4 new 2004 Ti 16" alloys. =D

Guess how much?

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5/Apr/2005, 4:45 pm Link to this post Send Private Message MSN Blog
 
harryzell Profile
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Date Registered: 08-2004
Location: Adelaide, SA
TOTAL POSTS: 168
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Re: bigger rims WOW


Knowing how good you are at this Jalal, I'd say well under $500. emoticon

But I have no idea what RRP is on them?

Didn't you just buy 4 new 15" tyres??

Cheers
Brenton

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***********
T30 ST manual, Burgundy

http://www.hr4wdclubsa.org.au
5/Apr/2005, 5:31 pm Link to this post Send Email PM   Send Private Message
 


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