How many pound does each wheel w/out tire weight? I am looking to buy a set but wonder if they're really light.....BTW, which wheel are the lightest one?

thanks

 

Each Volk wheel weighs different depending on model and size. The LE37/TE37 are supposed to be the lightest.

Even the "large" ones (19") I just got are light - 9½" are 18lbs, 10½" are 20lbs compared to 26 lbs for the OEM 18x8" wheels. I think the 18" 8½ are about 16lbs and the 9½ are around 18lbs.

 

The GT-7 & Gt-C are around 26 lbs for 19x9.5

 

Thanks Dave, I was about to upgrade my 19" OEM G35 coupe for lighter weight rims....but it seems like they weight the same......cuz the 19" OEM rim weigh arround 19~20lbs......I want to buy light rims for performance...not for look.....

 

Go with the 1-piece forged!

 

If your rich, go with VOLK TE37 Magnesium.

 

cool site :

www.wheelweights.net

The Volk TE37 Mg is definitely out there

Anyone knows how much the 35th anniversary wheels weigh ?

 

What makes the greatest difference the weight or the size?

Ruben

 

moment of inertia(the rotational equivalent of mass) increases at the square of the radius.

I= mr²

so, size makes more of a difference

to give you an idea... with large aproximation, considering "same" wheel in different diameters, these wheels would have the same "I"

20" - 26lbs
19" - 29lbs
18" - 32lbs
17" - 36lbs
16" - 41lbs

Basically, 16" wheels made out of lead, would be a better choice than 20" wheels made out of magnesium.

 

While size makes a big difference, if you drop enough weight you can make up for the increased rotational momentum. I was originally looking at 18" wheels but couldn't get the look I wanted. So I sat down and did a rough calculation of the difference in inertia between the stock 18's and the LE37T at 19". It turned out that the inertia was actually less on the 19's because of the amount of weight dropped. Remember, you're only talking about a delta of 1/2" in radius when going from 18" to 19". Now had the wheels weighed about the same, then yes there would have been a difference in performance.

 

That's true... you also have one of the lightest wheels on the market. And if you are not into high performance driving, the difference is hardly noticeable, in your case it's even an improvement comparing them to heavy stock 18" wheels.

now instead of the stock 18"s, imagine a 14-15lbs ultra light 17" wheel... if you are really conscious about performance and take your car to the track, the difference between a lightweight 17" wheel and anything else is incredible.

... nothing prevents you from having 2 sets

 

How much weight loss do you figure would have to be from an 18 to a 19 to make the 19 worth while? And would a couple of pounds make difference in a 19 for exmaple one type of rim was 23bls versus 20? Is that considerable across all four tires?

Ruben

 

Ruben,

The stock 18x8" wheels weigh 26lbs. The OEM Potenzas weigh (225/45/18 front) 28lbs and (245/45/18 rear) weigh 32lbs. That makes each front wheel weigh 54lbs and rears were 58lbs.

The 19" LE37Ts weigh (9½" front) 18lbs and (10½" rear) 20lbs. Michelin PS2s (255/35/19 front) weigh 25lbs and (285/35/19 rear) weigh 28lbs. That makes the new weight 43 lbs front and 48 lbs rear.

The moment of inertia equation has two parts, m the mass and r² the radius. The ratio of new to old mass (weights) is 43/54= 0.8 (front) and 48/58= 0.83 (rear). The ratio of new to old radius is 90.25/81= 1.11. The worse case is the rear wheel in terms of weight so 0.83 * 1.11 = 0.92 so my new moment of inertia for the wheels is 0.92 as large as the old. If the number was greater than 1, then I would actually be worse off.

If you reverse some of the math around, the ratio of weights has to be greater than 0.9 to wind up with a final ratio of > 1.0 in the inertia.

Keep in mind that all of these calculations are simplified. The I=mr² formula is for a thin cylinder, something that a wheel/tire approximates. Some of the weight is in the hub and spokes so that's why this is only approximate.

BTW, the ratio of moments of inertia from 18" to 20" is 1.23 so to break even, you have to keep the weight ratio down around 0.81.

 

Well, right now, $$$ prevents that from happening. Later this year, I'm going to be watching out for some used lightweight wheels that I can use for AutoX, etc.

 

My advice is go on some proven "cheap" 17" wheel if you track your car. Track wheels get a good beating, you don't want to be running on expensive stuff (atleast I rather not).

I paid my 17" 5zigen FN01r-c (cast) 200$ each... 17x9 and around 19lbs each. If something happens to one wheel, the hit on the walet is minimal... basically, 4 cheap lightweight 17" wheels cost as much as 1 nice 18"-19" wheel.

My 18" BBS RGR(forged monoblock) go for 700$ each... 18x8.5 weights 18lbs and the 18x9.5 is close to 19lbs. They are nice, strong and all... but I can't afford to **** them up, lol.

 

The FN01's are one of the wheels I've seen recommended for track use. Lightweight and relatively cheap.

 

Neez wheels are light as hell and expensive as ballz!

 

I'll keep my eyes on used 17/18 volk CE28 .... those look nice and light....

 

Dont run magnesium wheels on the street guys, its track only for those

 

Ok guys - I have long debaded this too, which is better for performance 17-18 or 19's. Nano is correct with the wheels. But, there is also the tire.
Since the PS2 where mentioned above - let's look at the weight of each tire (keeping in mind we want to keep the same overall diameter):
245/45R17 are 24#
245/40R18 are 24#
245/35R19 are 24#
(these are the closest sizes I could find in PS2 to do a comparison)
As you can see the tire weight is exactly the same. Therefore, if all wheels are the same wieght, than the 17's win the interia contest - hands down. Yet, performance also comes from reduced sidewall too - and around 40 or under is where you get gains. Also, if you look at wheel and tire cost they go up dramatically with wheel size! So if where my money I would go with the 18" TE37. Oh - and that is what I have on my car
(they also just came out with the reverse TE37 - look at Ray's web site)