Rim Weight

[Duncan]

they looked just as bad for those 2 precious laps

[lwells]

Heh. Maybe you should break out the steel wheels, or better yet, how about four GT-R space savers. That would be an interesting look on the track In fact its almost worth trying to borrow a couple of space savers just for a photo op.

Re: SSR forging technique (the general URL was posted earlier, this is the info specifically about the construction):

http://www.tirerack.com/wheels/ssr/ssr_info.jsp

[djhatton]

i saw a 21" chrome spinner with tyre on some scales a few weeks ago when i was at a wheel joint here in canberra. 41kg ea w/ tyres!!! eeeeek!

d

[xRHETTx]

Apparently my SSR Integral wheels weigh 8kg for the front 17x8" and 8.2kg for the 17x9" on the rear.

There is a website something like www.wheelspecs.com or something that has weights and other specs for heaps of different wheels.

[Adrian Knack]

Ok I don't know the weights with tyres but this site has the wheel you are looking at.

http://www.wheelweights.net/

This wheel is about 9kg (ish) - could only find the weight of the 18x7.5 which is 22.3lbs... so I just reduced it a bit. This is a great looking wheel!!! And a great price!!!

The 15" S14 wheel is about 7.9kg... but obviosuly there is alot more rubber attached when you put tyres on.

If you take a look at the more expensive Jap stuff, eg. Gram Lights 57S in the same size (17x7.5) it is 7kg (ish). Also a cast wheel (unless you go for the PRO version) and costs about $500 or so each wheel. So you basically pay for the weight reduction. Maybe they are stronger but I don't think you sound like the person that is taking his skyline to the track...

Hope this helps

Cheers

Adrian

[AzzurrA]

but I don't think you sound like the person that is taking his skyline to the track...

Hehe, that was the whole point of the exercise of trying to find lighter rims... as i am starting to do some sprint days, and want some lighter rims for the benefits they give to a track car...

if i was purely after looks, the weight wouldn't bother me

[Wink]

FYI, My Work Emotion Cr-Kai 17x8 weigh ~9kg. Measured them using a digital bathroom scale.

[Adrian Knack]

Hehe, that was the whole point of the exercise of trying to find lighter rims... as i am starting to do some sprint days, and want some lighter rims for the benefits they give to a track car...

if i was purely after looks, the weight wouldn't bother me

<{POST_SNAPBACK}>

LOL sorry - must have missunderstod... If you got the money then go the jap rims

I did

[prestagea]

Don't know whether this helps, but I just weighed a standard R32 gts-t rim + tyre I have here and its 18kg.

Wow, I'm a little surprised as I thought of that wheel as looking quite light. So are those wheel cast then? A wheel weight website somewhere said the 32 GT-R wheel is 16lb/7.2kg, but that's just the wheel. Anyone weighed the 32 GT-R wheel with a tyre mounted? (Obviously varies with tyre, but for a rough idea?)

I had some 17" ROH Adrenalines that weighed 19kg with a tyre, and I thought that was pretty porky, but maybe not that unusual? Current ones are 15kg with tyre, and I was casting about for something potentially lighter, hence wondering about 32 GT-R wheel/tyre weight.

[nisskid]

wow, diggin up a 3 year old thread, nice

Wow, I'm a little surprised as I thought of that wheel as looking quite light. So are those wheel cast then? A wheel weight website somewhere said the 32 GT-R wheel is 16lb/7.2kg, but that's just the wheel. Anyone weighed the 32 GT-R wheel with a tyre mounted? (Obviously varies with tyre, but for a rough idea?)

I had some 17" ROH Adrenalines that weighed 19kg with a tyre, and I thought that was pretty porky, but maybe not that unusual? Current ones are 15kg with tyre, and I was casting about for something potentially lighter, hence wondering about 32 GT-R wheel/tyre weight.

what u have to understand is that a wheel may be small in diameter, and thus weighing less than say a 18" wheel, but the tyre to keep the same overall diametre of the wheel and tyre u need to run a higher profile on the smaller diametre wheel, this means the tyre weighs more.

the GTS-t wheel is cast yes, the GTR wheel is forged, weight wise there is not a whole lot of difference, the GTR wheels weighs a bit less, but remember the GTR wheel is 8" wide and the GTS-t is only 6.5" so its not really a fair comparison.

remember, weight is relative to the size and strength of the wheel, no point having a really light wheel if its weak as piss and too thin to fit a decent size tyre on it. 19kg isnt overly heavy, but id imagine the wheel was something like a 17x7ish? to give u an idea, R33 GTR wheels (forged)weigh around that, are very strong and rigid, are 9" wide, with near new 235/45 tyres on them. they weigh around 9kg on there own without tyres.

ROH's arent a particularly expensive wheel and use a pretty standard casting technique.

[dezz]

My 18x8.5 TE37's weigh in at 8kg...very light for an 18" rim in my opinion...I think the LMGT4 is 1 of few that is lighter than TE37's inch for inch...

I expect the 18x9.5 rears I'm getting to be 8.5-9kg, but I'll have to wait until they're here to weigh them

[nisskid]

TE37's are a very lightweight mass produced wheel, same as GT4's, there are others that are similar weight though, and for much cheaper.

[prestagea]

the GTS-t wheel is cast yes, the GTR wheel is forged, weight wise there is not a whole lot of difference, the GTR wheels weighs a bit less, but remember the GTR wheel is 8" wide and the GTS-t is only 6.5" so its not really a fair comparison.

...

ROH's arent a particularly expensive wheel and use a pretty standard casting technique.

So 32 GT-R wheel with tyre would be around 18kg or so anyway? Anyone weighed one?

(The ROH was an example of a fairly nasty wheel, that's why I was surprised the GTS-t wheel was nearly the same weight, as the ROH looks like it has lots of excess material, but the GTS-t wheel looks pretty clean.)

[nisskid]

the casting technique is ultimately what determines the weight, the design does play a role, but not usually as large as the manufacturing technique.

the weight of a tyre and rim will vary by a few KG's depending on tyre size, tyre design, tread left etc etc so u really cant compare. plus the GTR wheel will usually run a wider tyre as well so theres extra weight.

[Sydneykid]

There can be more variation in the weight of the same sized tyres of different construction than the weight of a one forged rim verssus another forged rim. A new tyre with 8 mm of tread weighs more than used tyre with 5 mm of tread, let alone a worn out tyre with 1 mm of tread. Take a look at what is written on the sidewall of a tyre, research how many steel and/or kevlar belts, shoulder and sidewall construction, plycord, bead filler and wires and the chafer. Saving 1 kg by spending $800 more on a wheel and then using a tyre that weighs 2 kgs more is not very cost effective and may do nothing for performance at the same time.

Cheers

Gary