LehmanZ06

Picked up a set of 4 for my 10 GT3.

Saw on the back of each wheel "415 kg MAX" for each front
And "625 kg MAX" for each rear.....safe right ???

FFaust

You should ask Damon.

But that's ~1,600lbs in the front and ~2,400 in the back (+ a margin), and it's not a rigid suspension, so yes, safe.

RSRanger

I see your from So. Florida, who did you order from or was it the Tire Rack?
What are the widths of the rears?
Congrats, nice looking wheels and light.

Ranger (Sua Sponte)

NJ-GT

wow! not safe for my use.

For car shows, public highways and flat roads, yes they're fine.

For track use, not remotely safe. At 1g of vertical g-force (standard gravity), a GT3 with driver and fuel puts 2,200 lbs on the rear axle and 1,300 lbs on the front axle.

Any elevation change that causes compression on the car can easily exceed those Maximum load ratings from the OZ wheels (1,826 lbs total front, 2750 lbs total rear).

So, no more braking from high speeds, no more Sebring, no more Daytona, no more PBIR, no more Homestead.

Unsafe for high speed driving & track days.

BBMGT3

I've been using them for a while not. Didn't know about the max load rating but haven't had any problems...

savyboy

As a different point of reference, the Rays Volk Racing G12 forged centerlock wheels that I represent and have for sale (and written up in this thread) are rated at 735kg per wheel. Both front and rear have this rating stamped into the outer rim.

Price is frequently correlated to quality.

In NJ-GT's example above compare total max load rating of 4576 lbs on the OZ vs 6468 lbs for the Rays. It is an indivdual choice how much margin of safety one chooses to invest in.

NJ-GT

Impressive, a front wheel with almost twice the weight rating of the OZ.

RAYS (they make Volk Racing wheels) are among the best wheels in business, lightest/strongest package.

Savy, I want those rotors for my FIAT.

savyboy

Folks love pretty pictures, and never discuss weight ratings

tom@tfent.com will hook you up with those rotors (MovIt), tell him I sent you

911rox

Do we know the load ratings of the OEM wheels? Surely the Oz wheels would match those at the very least... Heaps of guys use the non forged Ultraleggeras without issue...

BBMGT3

I haven't used the HLT but CorsicanBB who drives the same car as me has them and from what I know they are fine too. Another guy here has the HLT's and runs them on a super-modified 996gt2 and hasn't had any problems. I've been running the superforgiatas for several months now very aggressively without any problems. It would be good if the load rating is static or dynamic - if its static then we are fine, if its dynamic then we are in trouble lol.

LehmanZ06

No worries must be fine.

Just coming back from the Moon now, and reentering Earth's atmosphere.

Wheels....so far ok.

Outside temperature 16900 F degrees and climbing.

Vehicle load 20,000 lbs (6 g's plus).

Sorry gotta go and push the "lift" button in order to activate parachute, as I am going to land in the Pacific ocean in about 10 minutes, and I hate...HATE......when the car sinks to the bottom of the ocean----talk about an expensive tow....been there, done that, and I don't want to do it again.

Nizer

Bear in mind Ultraleggeras weigh as much as stock wheels. I'd expect them to be stronger than the Superforgiatas.

LehmanZ06

Ultras are like 1 to 2 lbs lighter than OEM.

Superforgiatas are like 5lbs or so for each front, and 8 lbs or so for each rear lighter

911rox

I appreciate the fact that the Ultras are heavier Nizer but the fact that they are forged offsets some of the weight as the material is more dense and therefore stronger. The superforgiatas should easily be as strong if not stronger than the ultraleggeras... The forging process by which they are made yields a far stronger and superior product, just like forged spanners compared to cheapy cast spanners.... Oz racing are a TUV certified manufacturer. That is supposedly one of the highest standards to adhere to. When making wheels for a particular car, the manufacturer would determine the minimum load rating their car requires and aftermarket manufacturers would be required to match this rating to be certified.

The answer to this query should be stamped on the back of our OEM wheels... I doubt Oz racing would (a) make its wheels to a lesser standard, and (b) make its premium product weaker than the entry level product... Just my opinion...

Respect to Rays for going to a higher standard, albeit at a price....

FWIW- Had some photos of my tech1-110 wheels and the load ratings on those were 970lb (f) and 1433lb (r) which equates to 440kg (f) and 650kg (r) thus they apply a safety factor of 25kg... I'd be very confident that the max ratings on those superforgiatas stated above are the ratings set by Porsche on the OEM wheels...

jp175

Savy - Can you tell me again how much are the Rays for 2011 RS?