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r9 wheels' ET (offset)

May 2 2002 at 5:38 PM
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Pawlik 
from IP address 213.76.12.112

 
Hello.

What is ET (offset) for R9 GTL. I know the wheels should be R13, 4 holes with 100 mm space between them, but what ET ?

Pawlik

 
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Juha

193.166.232.79

36 mm

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May 2 2002, 6:40 PM 

Inset = +36 mm

 
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Juha

193.166.232.79

Centre hole 60.1 mm

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May 2 2002, 6:42 PM 

you didn't ask that, but it's good to know since it is bigger in Renaults than in many others.

 
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Pawlik

213.76.14.79

Re: Centre hole 60.1 mm

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May 2 2002, 10:34 PM 

Tnx for your info,

One more question - are wheels for R9 compatible with any newer Renault models, or VW or whatever? What about using alu wheels ?


 
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12.220.81.6

Mounting wheels, customs too!!!!

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May 3 2002, 4:38 AM 

I have on my grey R-9, 1979 BMW aluminum wheels that I spent 2 hours machining (each wheel) with a small grinder to make them fit on the front hubs,, since the center holes were smaller than the Reno hubs-- they did not fit right-- so I machined them to fit,, but they rears ended up rubbing the fender wheels, so I took them off and replaced them with Ronals 14 X 6 inch(wide) from a Volvo...
I know having 2 different wheels and tires on the car might look different,,, but it suits my needs,,, and I eventually want to fit 7 spoke 1996 Ford Escort Sport 13 inch wheels to one of my R-9 cars too.
It takes a bit of fiddeling, sizing,, but you can fit many wheels to a Reno 100 MM if you have the patience, persistance,, and a bit of a grinder to put the wheels properly on the drum, hub....
Good luck... Joe in USA

 
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Juha

193.166.232.79

wheel interchangeability

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May 3 2002, 6:02 AM 

These Renault models have the same 4x100/ET36/60.1 wheel pattern (although width and diameter vary):
-R5 1985->
-R19
-R21 (not Turbo 2L)
-Clio I & II

The following I'm not 100% percent sure of the ET (it might be larger = sits "deeper" in wheelwell), but otherwise they're identical:
-Fuego
-R18 1983->
-early Espaces
-R25 4-cyl.


AFAIK, wheels from other makes don't fit directly without modifications. It's the center hole that poses the problem: It's bigger in Renault than in most other makes.
You can use e.g. 4-bolt VW Golf/Passat wheels on an R9, but the center hole needs to be turned larger in a lathe. (57 mm -> 60.1 mm). These VW wheels have a 4x100 bolt circle and an offset of 38 mm so they're otherwise great for the R9.
Front-wheel drive Opel wheels (4x100) are probably quite close to that 38mm, however I'm not 100% sure of that, might be even more than that. Older rearwheel-drive Opels and BMWs however, although 4x100, have much smaller offsets (around ET15-25 mm) so there's no way they'll fit under the R9 rear wheelarches.
Ford wheels won't fit, they're 4x98 mm.


Aftermarket alloys, no problems. 4x100mm being the most common PCD and most modern FWD cars using an ET close to 38 mm means the choices are plenty. The aftermarket alloys usually come in ETs of 35, 37 or 38 mm (depending on wheel manufacturer).

When choosing a wheel, make sure the offset isn't much smaller than the original 36 mm. There's very little space in the rear wheelwells and anything much smaller than 36 and the tyres will most likely rub against the outer wheelarches. And there isn't too much room on the inside. I'm using 195/50R15 tyres at the moment, mounted on 6.5x15" ET45(!) wheels, and I've had to remove the rear shock absorber plastic protective sleeve and mount spacers behind the shocker lower mounting points to move them further away from the tyres. And there's only 1 mm(!) between the tyre and the inner wing! In fact, when cornering, the flex in the suspension arm bushing makes the outside tyre contact the inner wing...
So, assuming you settle for a 185 mm tyre or narrower, I'd say the safe offset range is ET35-ET40.

 
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Anonymous

213.76.12.111

Re: wheel interchangeability

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May 3 2002, 10:51 AM 

Thanks again for a plethora of information.

BTW you said:

These Renault models have the same 4x100/ET36/60.1 wheel pattern (although width and diameter vary).

What about R14 wheels then ? Will they fit onto R9 GTL with no fiddling whatsoever, providing they are 4x100/ET36/60.1 ? My primary concern is safety, as I often transport my family fast.

Pawlik

 
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62.178.19.25

R14 wheels

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May 3 2002, 10:55 PM 

R14 wheels wonīt fit - they are three hole.
As far as I know the first 4-hole wheels on a Renault were used on the early 20/30, although they wonīt fit either (wrong diameter). Then, the Fuego came with 4-hole, thereafter R18, R5 and so on. Also, later R20TS (2litres) and R20/R30 TurboDiesel wheels had the same diameter. Iīve already seen a R11 equipped with the original Fuego GTX wheels (6,0x14, 185/60R14), so this combination seems to fit, although I donīt know if there alterations had been made.

 
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Juha

193.166.232.79

About the 20/30 wheels

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May 5 2002, 9:31 PM 

I think the R30 4-bolt wheels have a PCD (Pitch Circle Diameter) of maybe 4x130(?) mm. The same as the 1981-2000 Trafic fwd van?

 
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62.178.19.25

not all

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May 6 2002, 8:24 AM 

The later R20TS/R20TurboD/R30TurboD share the front suspension with R18/R21/Fuego/early Espace with a 4x100 diameter.

 
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Juha

193.166.232.79

Thanks, I didn't know that

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May 6 2002, 1:36 PM 

Those later 20/30 models are virtually non-existent in Finland, did they change at the same time (for 1983) as the R18 changed from 3-stud to 4-bolt?

 
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62.178.19.25

yes

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May 6 2002, 3:50 PM 

in 1983 Renault modified the existing Fuego front suspension to fit all these models further mentioned. The only not modified were the 20TX (2.2 litre) and the 30TX (2.6 V6 injection), which stayed with the "bigger" suspension. So, like the R21 (with longitudal/trasversal engine) was not the first Renault which came with different suspension depending on the engines.
BTW, R21 with 1.7 transversal engine shares a lot of parts with the 9, so if you canīt find a 9/11 in the junkyard....

 
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Pawlik

213.76.12.187

60 or 60.1 mm

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May 4 2002, 6:12 PM 

Maybe this question is naive, but from what I saw on the Internet, newer Renault have 60, not 60.1 mm center hole. Is it a big deal, or no problem, or perhaps the people do not care for 0.1 mm?

 
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Juha

193.166.232.79

No big deal

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May 5 2002, 9:26 PM 

Doesn't make a difference, whether 60 or 60.1 mm.


Maybe it's that the hub center is 60 mm, therefore the hole in the wheel center must be slightly bigger (60.1 mm) so the wheel can be fitted over the hub without a hydraulic press?

That might explain it: some talk about the hub center diameter, others about the diameter of the hole in the wheel?

 
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Juha

193.166.232.79

4-door R9 on 17s

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May 3 2002, 6:38 AM 

www.mob-concept.com/Galleria_hovis_renault.htm

And that (allegedly) isn't a photo-montage!

Well, this is the first one I've heard of on 17s. A 4-door model that is, we all know the Canadian 2-dr. ragtop-Alliance with larger rear arches, don't we?

Can't wait to see this R9 "in person" (if it really exists) at some upcoming Finnish meeting to check out the wheel width and offset and required mods to the body. I heard rumours the rear suspension couldn't be lowered as changing the wheel would have been impossible after that! If the suspension arm was set any higher (=ride height lower), the wheel couldn't come off the hub without the outer arch being in the way.


I suspect the offset must be close to 38-40mm, we might be wiser in just two weeks...



 
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wakemania

65.94.191.105

Do 195-40-16 tyre will fit on r-9 ??

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May 3 2002, 2:01 PM 

I know that some tyre company make a 195-40-16 tyre, will they fit like the 195-50-15 or better or worst ???

They also make a 195-45-16 tyre that cost less.

I think that Toyo, Dunlod, Bridgestone, continental,....have that size.

If the 195-40-16 fit better than the 195-50-15 , that will be great!!! to run on 16 Inch without modifications .

 
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Juha

193.166.232.79

Tyre size calculator

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May 5 2002, 9:42 PM 

This is what the great tyre size calculator gave as a result:


Specification Sidewall Radius Diameter Circumference Revs/km Difference
195/50-15 98mm 288mm 576mm 1810mm 553 0.0%
195/40-16 78mm 281mm 562mm 1767mm 566 -2.4%
195/45-16 88mm 291mm 582mm 1828mm 547 1.0%


This useful utility can be found e.g. at www.miata.net


We can see that the 195/40 R 16 is actually one (1) centimetre SMALLER in diameter than the 195/50 R 15. So in that area there shouldn't be problems.

These of course are generic dimensions for each tyre size, based entirely on simple calculations from the numbers in the size marking. Actual tyres always differ somewhat from these theoretical values, so it's always a bit of a gamble when you're trying to push the envelopr to its limits...

 
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Anonymous

65.94.190.14

So i will take the chance....and Do somebody know....

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May 6 2002, 3:45 PM 

As my 15 inch Mag wheel are almost dead,(i have to rebuilt them, they are a little bit twisted ) and my tire too, i will try to find new one for my GTA.

Do somebody know a web retailer (that i can trust, because i live outside from Europe (Canada) and it will be hard to return them if they are not right)where i can find 16 inch mag and tire for my GTA.

What is your suggestion for brand, models that will be nice on my GTA. I dont want to pay more than 90 Euro per mag + 75 euro for the tires.

I like the OZ polaris model.

thank for your help
Thnak for

 
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Juha

193.166.232.79

check this url

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May 6 2002, 9:59 PM 

http://www.performancealloys.com

Lots of different wheel makes and designs available there. From what I understood they're based in the UK but say they ship worldwide in just 2-5 days!

I haven't got experience about how reliable they are, but their website seems very convincing... And you see the complete price of a wheel/tyre set shipped to your own country, which I think is great. I'm not sure, however, if the 'GTA' on their list means the Alliance GTA or the European rear-engined Alpine V6 GT sports car? I think it means the latter, as this Alpine was sold in the UK (where the company's based) as a Renault GTA.


The OZ Polaris is a good, clean and quite modern 5-spoke design. About similar designs, in addition to the Polaris, I like the following: Mille Miglia Evo and BWA Spyke.

The Mille Miglia Action is a nice looking wheel IMO, however it's seems to be only available in 16x7.5 which might be a bit too wide for the GTA?

I also like the Super Touring Car type wheels with lots of thin spokes. Some of the best looking of this design IMO are TSW Imola, Kosei Sniper, OZ Superturismo, Performance Alloys (Darwin Racing) W660.


All of the above are timeless designs, yet look modern. Many of the more "bizarre" designs may look cool for a year or two, but are then hopelessly outdated (like the famous 3-spoke design ca. 10 years ago). And too much of e.g. "biodesign" maybe doesn't suit the angular GTA very well...

I haven't checked which of the above would actually fit a GTA or what these wheels cost. I did notice, however, that some of them were only availalbe in 16x7.5". Might be worth checking the available space closely from the wheelwells, as the original GTA wheel to my understanding is 6.5 or 7". Also worth doing some calculations about the offset, how much is there space for the rim to move in or out compared to the original GTA wheel. And remember that these two, width and offset, must both be considered at the same time as they both affect the outcome (whether your tyres will rub against the arches/shockers or not).

 
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wakemania

65.94.191.243

Re: check this url

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May 7 2002, 12:48 PM 

thank juha,

Their web site is really nice and the shipping is free for the USA but not for Canada.
They have a lot of choice.

The price are Ok and you a have a discount for country outside of europe of 17.5%.

The GTA in UK is always for the Alpine (A610) model but mine is a R-9 and they have the R9 in their options.

The mille Miglia are also nice and they were on my list, that is my king of wheels.

I want a classic 5 spoke model. For the multi spoke model they are nice too but on the GTA in North America we already have a multi spoke model and they are very hard to clean, you need a tooth brush to make them bright and i hate this.

Be sure that my next wheel will be fast and easy to clean.

Thanks again for your help and your suggestions.

 
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