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 TPMS Referral 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.