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Old 06-12-2002, 02:18 PM   #1
bluescoobywagon
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Default Lightest Rims?

I'm shopping for rims and the lightest 17" I've been able to find (that's actually available for sale in the US) is a 17x7.5 that weighs 12.7 lbs. The lightest 18" I could find is a 18x8 that weighs 15.2 lbs. Has anybody found anything lighter?

Mike Robinson
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Old 06-12-2002, 02:46 PM   #2
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Yup. www.rallyperformance.com had some MAGNESIUM wheels from TechnoMagnesio on their website not too long ago. They were very light, Ken made a comment about thinking the boxes were empty when he got them. They are called the "Victory", 3 kilos per wheel!!!! Oh, yeah, they also cost $3700 a set.



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Old 06-12-2002, 03:03 PM   #3
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SSR Comp's are light and forged....Tire Rack......$375 for 17x7 1/2 50mm offset.....IIRC ~13pounds/wheel.
I love mine...

EDIT: 18's on the wagon may have fitment probs......
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Old 06-12-2002, 03:08 PM   #4
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you can get any wheel in the US, just depends on how long you are willing to wait and how much you want to spend if you are looking for the lightest then magnesium is the way to go. volk makes forged magnesium TE37's, work makes forged magnesium Emotions, then there are those technomagnesio's that dsmawd posted up(i've never seen those, hahaha). are those forged magnesium dsmawd?

m i k e b
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Old 06-12-2002, 03:33 PM   #5
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I dunno, Mike. The Rally Performance website doesn't say one way or the other. Does the price fall in line with forged magnesium Volks?

- Trent
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Old 06-12-2002, 03:42 PM   #6
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The SSR comp's and the Racing Hart cp-035's weigh about the same, with the 035's weighing just a little less and the SSR's costing apx. $75 a wheel less. I have both and on my RBP RS the 035's in winning gold look much better.

I think the lighest 17x7.5 aluminum wheel is the Volk CE28N, at #12.4.
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Old 06-12-2002, 03:59 PM   #7
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I was acutally looking at the SSR Comp's. Those are the 12.7 lb 17x7.5's that I listed. The Volks are a tad heavier at 15.0 lbs for the 17x7.5 size. As for 3 kg per wheel, that's only 6.6 lbs. Is that even possible in a 17? Sheesh. Are they DOT approved? I know that some super lightweight wheels are for racing use only (like the 13" Lenso's I bought once).

Mike Robinson
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I'll make 'em fit....get me a hammer and a bat.
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Old 06-12-2002, 04:04 PM   #8
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Quote:
Originally posted by Richard A.
The SSR comp's and the Racing Hart cp-035's weigh about the same, with the 035's weighing just a little less and the SSR's costing apx. $75 a wheel less. I have both and on my RBP RS the 035's in winning gold look much better.

I think the lighest 17x7.5 aluminum wheel is the Volk CE28N, at #12.4.
I see the CP-035's listed as 13 lbs. That might not be right though. Also, The SSR's without the center caps installed are 12.5 lbs in the 17x7.5 size that I'm leaning towards. 18's look groovy but are too friggen expensive and bend too easily. Southern California freeways suck. I ran over a transmission once!

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Old 06-12-2002, 04:19 PM   #9
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IIRC, the SSR are only semi forged, not fully forged, and as such, a tad overpriced for what you get.

magesium definatly is teh lightest, but I wouldn't want to risk curbing,e tc. with them on a street car.

Volk CE28's are light, Volk Gram lights (considering the cost) are a great value as well....the idea is to find light and strong, not jsut one or the other.

As for getting the wheels here, true...we can get ANy wheel you have seen elsewhere...jsut depends on time and budget
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Old 06-12-2002, 04:21 PM   #10
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Default You're right

CP035 is 13 lbs, and SSR is 12.7. The Japanese models (SSRs) are about 5 ounces lighter per wheel but don't have the center cap. SSRs for me, but in a 16 X 7.5 size (11 lbs).

San
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Old 06-12-2002, 04:23 PM   #11
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I weighed my gold comps and they are right around 12.0 lbs. I've been told they are slightly less than the anthracite versions. 12lbs vs. even 15lbs isn't going to gain you much imho. I've been through some VERY rough roads and have about 6k miles on my 17x7.5s and not a single problem. I was set to get the Prodrive GC-07Cs but the thing that did me in was availability. I would almost want to order an extra wheel just in case. With the SSRs I can call tirerack and get a new wheel in 2 days...

Magnesium wheels aren't real practical for street use.

Phil
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Old 06-12-2002, 04:27 PM   #12
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I see that everyone has discussed many options for light wheels but what about tires? Would you not want to find a balance of the tires performance and its weight? Or do tires not change very much between models/brands?
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Old 06-12-2002, 04:51 PM   #13
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For the money? Rota Attacks @ 15 lbs or so... I would save the money and pick up those few lbs of difference somewhere else.

-Jonathan
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Old 06-12-2002, 05:05 PM   #14
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Quote:
Originally posted by ciper
I see that everyone has discussed many options for light wheels but what about tires? Would you not want to find a balance of the tires performance and its weight? Or do tires not change very much between models/brands?
I think tire weights are just as important (if not more) since that's where the most rotational inertia is located.

And tire weight differs between brand quite a bit. One of the lightest is the Toyo T1-S at around 20-21 lbs for a 215/45 R17. Some other comparable tires are over 25 lbs, I believe.
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Old 06-12-2002, 08:14 PM   #15
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found this sight on wheel weights thought it might help http://www.wheelweights.net/
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Old 06-12-2002, 09:07 PM   #16
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oldmansan
"SSRs for me, but in a 16 X 7.5 size (11 lbs)"
Are they available yet. I'm hoping I've missed something and they are here. Richard

Edit spellling
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Old 06-12-2002, 09:57 PM   #17
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iirc, the buddyclub 17" p1 racing qf's are lighter than the 17" ssr comps.
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Old 06-13-2002, 02:32 AM   #18
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WRT Tire Weight - there is not much you can do about it, as most good tires weight more. T1S is just about the lightest in the bunch at 20lbs for a 215/45R17
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Old 06-13-2002, 02:45 AM   #19
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Per the manufacturer, the SSR's are a true forged wheel. The Semi-soft process is proprietary(sp?) for forming semi-molten billets.
Magnesium street wheels are, IMHO, a fantasy unless one is VERY wealthy.

EDIT: Too light tires may be like too light wheels---too fragile for everyday driving.

Last edited by Uncle Scotty; 06-13-2002 at 02:50 AM.
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Old 06-13-2002, 07:49 AM   #20
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Guys, I didn't say that the magnesium wheels were a wise choice for a street car. He simply asked what the lightest wheel out there was.

SSRs semi-solid forging is not true forging. If I was choosing I would go with the CE28Ns, gold, of course!

- Trent
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Old 06-13-2002, 02:32 PM   #21
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have Fikse custom make you a set, the will be expensive as hell but they will be light.

www.fikse.com
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Old 06-13-2002, 02:39 PM   #22
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Fikse wheels aren't all that light, very strong tho.
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Old 06-13-2002, 03:07 PM   #23
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Default SSR's process of Semi-Solid Forging

Since the term "Forged" is sometimes mis-understood, here is quick rundown of forging and the process that SSR uses. (most of this has been used from other posts about SSR ...)


"Forged" wheels are made from a solid billet of material and do not have the problem with porosity that cast products do. Both "Traditional Forged" and "Semi-Solid Forged" items start from a solid billet of material, not a molten alloy that is used for cast wheels.

"Traditional" forged wheels use 8 to 14 million pounds of pressure and VERY expensive tooling to create a wheel. The basic forging is spun to create the full width and shape of the rim. It is a very expensive process.

Semi-Solid Forging (SSF) is a process that SSR uses. (This process was actually developed in the U.S. by Alumax. SSR bought the rights to the process to develop wheels. SSR finished developing the process and patented some special methods they needed to use this technology for wheel production.)

SSF is more of a high-pressure injection process than a traditional forging process. Using a heated billet of special aluminum alloy (A357) that is developed only for this process, it is "shot" into a wheel mold at a high pressure and at a very high rate of speed. The part is then heat treated to T6 and after machining; the wheel is shot blasted to reduce the internal stress of the material and increase the life and strength of the finished product.

The end result of SSF provides a wheel with excellent mechanical properties and more design flexibility than a traditional forged wheel without the very high tooling costs of a traditional forged wheel.

SSR is making the Competition in 16x7(50mm offset)and a 16x7.5 48mm offset)for Subaru. (As well as the 17x7.5 and 18x8) There will also be a SSR GT-1 in 17x7.5 (50mm offset) for Subaru.

There may also be a Silver version of the Competition added to the offerings in this market.
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Old 06-13-2002, 03:11 PM   #24
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Thanks, CD. I knew I had seen the difference between the two processes posted here before somewhere, I just wasn't sure where.

FWIW, I have heard a lot of stories of people bending SSR Comps, both here and the Miata boards. This alone leads me to believe that SSF is not as strong as traditional forging. You'll get no argument that it is stronger than any type of casting, though!

- Trent
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Old 06-14-2002, 02:38 PM   #25
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Do you know if they were bending 17's or 18's?

Mike Robinson
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