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Discussion Starter #1 (Edited)
Yes, there are other threads, but they're quite old and are specific to the Type 987. Rather than being a necromancer, I decided to dig up the info.

Big thanks to David Martin at Wheel Enhancement. He does not, however, have the weight of the Sport Techno 2s. If someone has this information, it'd be greatly appreciated. I also do not have information for the 18-inch wheels available because I didn't ask for it.

Boxster S III (2013 Boxster S, 2014 Boxster S)
  • 19 x 8.0 - 22 lbs. 8 oz.
  • 19 x 9.5 - 25 lbs. 5 oz.
Cayman S III (2014 Cayman S)
  • 19 x 8.0 - 24 lbs. 6 oz.
  • 19 x 9.5 - 26 lbs. 10 oz.
Carrera S III
  • 20 x 8.0 - 22 lbs. 7 oz.
  • 20 x 9.5 - 24 lbs. 15 oz.
Carrera Classic II
  • 20 x 8.0 - 23 lbs. 8 oz.
  • 20 x 9.5 - 25 lbs. 4 oz.
If you want to stick to a 19" wheel (better tire selection), you can't argue the Boxster S III. However, if you want the lightest wheel/tire fitment possible, the Carrera S III will ultimately save you at least 1 lb per wheel (due to the lighter tire), and around 1.5 lb per rear wheel.

Oh, but how much will tires weigh? Don't worry, I've got some of that too. I have the most accurate numbers I can get. Michelin gets it down to tenths of a pound, whereas TireRack only posts to the nearest pound. I'll see what I can do on getting more accurate numbers. I've included Michelin Pilot Super Sports despite the fact that they aren't N-Spec, simply because they're ridiculously good.

Pirelli PZero (N0, OEM)
  • 235/40ZR19/XL 92 (Y) - 23.? lbs.
  • 265/40ZR19/XL 98 (Y) - 28.? lbs.
  • 235/35ZR20/XL 88 (Y) - 22.? lbs.
  • 265/35ZR20/XL 95 (Y) - 28.? lbs.
Goodyear Eagle F1 Asymmetric 2 (N0, OEM)
  • 235/40ZR19/XL 92 (Y) - 22.? lbs.
  • 265/40ZR19/XL 98 (Y) - 25.? lbs.
Bridgestone Potenza S001 (N0)
  • 235/35ZR20/XL 88 (Y) - 24.? lbs.
  • 265/35ZR20/XL 95 (Y) - 28.? lbs.
Michelin Pilot Super Sport (NOT N-Spec)
  • 235/40ZR19/XL 96 (Y) - 23.4 lbs.
  • 265/40ZR19/XL 102 (Y) - 25.0 lbs.
  • 235/35ZR20/XL 92 (Y) - 22.4 lbs.
  • 265/35ZR20/XL 99 (Y) - 24.9 lbs.
 

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Yes, there are other threads, but they're quite old and are specific to the Type 987. Rather than being a necromancer, I decided to dig up the info.

Big thanks to David Martin at Wheel Enhancement. He does not, however, have the weight of the Sport Techno 2s. If someone has this information, it'd be greatly appreciated. I also do not have information for the 18-inch wheels available because I didn't ask for it.

Boxster S III (2013 Boxster S, 2014 Boxster S)
  • 19 x 8.0 - 22 lbs. 8 oz.
  • 19 x 9.5 - 25 lbs. 5 oz.
Cayman S III (2014 Cayman S)
  • 19 x 8.0 - 24 lbs. 6 oz.
  • 19 x 9.5 - 26 lbs. 10 oz.
Carrera S III
  • 19 x 8.0 - 22 lbs. 7 oz.
  • 19 x 9.5 - 24 lbs. 15 oz.
Carrera Classic II
  • 19 x 8.0 - 23 lbs. 8 oz.
  • 19 x 9.5 - 25 lbs. 4 oz.
If you want to stick to a 19" wheel (better tire selection), you can't argue the Boxster S III. However, if you want the lightest wheel/tire fitment possible, the Carrera S III will ultimately save you at least 1 lb per wheel (due to the lighter tire), and around 1.5 lb per rear wheel.
:thanks: - very much - for the valued info! ;)

It would be great if somebody could post the same for the 18", missing 19" and 20"... :dance:


Cheers,
 

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Thanks for the informative post. I am obsessed with wheel weights myself.

But aren't the Carrera S III and Carerra Classics both 20-inch wheels?

Also, based on tirerack info: 19inch Pirellis weigh same/less than 20s.
 

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Discussion Starter #4 (Edited)
Thanks for the informative post. I am obsessed with wheel weights myself.

But aren't the Carrera S III and Carerra Classics both 20-inch wheels?

Also, based on tirerack info: 19inch Pirellis weigh same/less than 20s.
Yes, corrected the sizes of the wheels. I knew they were 20s, so I blame cutting and pasting to save time.

Speaking of which, it'll be no surprise than the Sport Techno2s will be heaviest, as they're 20x8.5/20x10, so they're a bit wider than the rest of the available wheels.

As for TireRack, they round to the nearest pound. You'll have to pester individual manufacturers for more accurate weights. I've included known weights above, using a .? when I can't get sub-pound granularity.
 

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bump for good info. This should be a sticky.
 

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Those Pirelli rears are heavy! Maybe my car will come with Goodyears. When they are worn out, I'll replace with Michelin PSSs for sure. Using the PSS weights given above, here's what I come up with for my 981BS, give or take an ounce:

Boxster S III 19" front with PSS: 45.9# Carrera S III 20" front 44.9#
Boxster S III 19" rear with PSS: 50.3# Carerra S III 20" rear 49.8#

Total weight savings with 20" Carrera S over 19" Boxster S 19": 1# on fronts, 0.5# on rears.

Thanks for the info Goofnik
 

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Neat info but I was curious about the 18" OEM wheels.

I guess eventually I'll be deciding whether to get cheap alloys for the winter tires or, if a significant unsprung weight differential can be achieved, better aftermarket wheels for summer and use the OEM wheels for snows.

Welcome to the big leagues, I guess -- not that many years ago I was getting 195/50-15's for the Miata and WAY less weight...
 

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Was anyone able to get the weights for the 20" Sport Techno wheels for the 981? I believe they are 0.5" wider front and rear than the other 20's.
 

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I believe they are 0.5" wider front and rear than the other 20's.
Yes, they are. I read the lightest are the turbo forged wheels my car came with. And the second lightest the forged Technos, due to being wider. All other options are not forged, and therefore heavier, but my guess is not by much. The next lightest wheel reportedly is the Carrera S standard on GTSs. Guess we'll never know the precise weights of all of them. Porsche should list them.
 

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The 981 Sport Techno is a cast wheel and it is heavy. They weigh about 4 to 5 pounds more per wheel than my Modulare forged monoblocks.

Here are the weights for the 991 Sport Technos:

20” Sport Techno Wheel
9"x20" 27lbs 2oz
11.5"x20" 31lbs 1oz

That's consistent with what I wrote about the weight when I replaced mine:

Previous wheels were Sport Technos weighing in at 25.1 lbs. front and 28.2 lbs rear.

These represent a significant weight loss at 20.1 lbs front and 24 lbs rear. Weight was measured unscientifically by me standing on a scale with and without the wheels; however, multiple weigh ins resulted in the same numbers.
 

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Discussion Starter #13
Boxster Spyder (Type 981)

  • 20 x 8.5 - 23 lbs. 3 oz.
  • 20 x 10.5 - 25 lbs. 9 oz.
Had them weighed today (in addition to the car, fully fueled, full washer fluid, manual in glovebox).
 

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Thanks to David Martin of Wheel Enhancement, the set has been completed:

Porsche OEM 981 Boxster III
8x18" 20lbs, 6oz
9x18" 22lbs, 13oz

Porsche OEM 981 Cayman III
8x18" 21lbs
9x18" 23lbs, 1oz

I'll have to order some wheels from him next year to say thanks.
 
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