Curious, how do you know they don't come with sensors and tires? I know it isn't specifically worded, but did someone from Tesla confirm this?Starting May 19, 2017, The Arachnid wheels are back in the new program ... without tires and TPMSReferral Program
3 Qualifying Referrals: 21” Arachnid Wheels
Enhance the performance of your Model S with exclusive 21” forged-aluminum Arachnid wheels in silver.
These are not available to the public and will be available for installation in August for winners in this program.