That's a nice weight loss. Any idea how it compares to that of the OZ's?
The OZ Cattiva's are some of the lightest wheels out there, even lighter than the BST's...which is the reason why I bought the Cattiva forged mag's.
The wheel weights, ready to mount, are:
Front OZ wheel assembly (Brembo T-Drive rotors, ABS ring, tire, etc...) - 9.95 kg
Rear OZ wheel assembly (Speigler rotor, ABS ring, cush drive, tire, etc...) - 11.29 kg
Stock wheel weights, ready to mount:
Front wheel assembly - 11.29 kg
Rear wheel assembly - 15.08 kg
Total savings: (15.08 + 11.29) kg - (9.95 + 11.29) kg = 5.13 kg
One thing to note, my wheels are a custom setup. I fabricated my own ABS ring to allow for the Brembo T-Drive rotors to fit and the ABS to work. Basically I was able to save .45 kg by going with my custom setup instead of the stock ABS ring and stock rotors. I weighed everything using a postal scale. While my stock wheel weights are a little different the the OP's, I think they are close enough to be considered legit. Possible source of difference was John had Avon tires and I had the Conti's... Hope this helps. Jason