Thanks HT ...

The rims/tires I have on now are the GM oem CK375 option package which comes standard on the Denali Hybrid. They are 22" with GY 285/45/22s. I chose those because I really liked them as they compliment the LTZ/Denali look, and they were the biggest/heaviest wheels that the dealer wouldn't hassle me in regards to my warranty, as they are GM approved for the Hybrids.