I am considering selling my upcoming 21" Tesla forged arachnid wheels in matte black for Tesla Model S (wheels itself should fit Model X as well). They will be in 'brand new, never installed' condition. For those who wish to know more about the uniqueness of these wheels: • These custom wheels are not sold in Tesla store. • Wheels are 8.6 lbs lighter in front and 9.5 lbs in rear wheel for a total reduction of 36.2 lbs of unsprung weight compare to the 21" Turbine wheels, a $4500 upgrade option for new purchase, or $6000 when sold separately. • Arachnid wheels are equipped in the Tesla that sets the record 0-60 time. 2017 Tesla Model S P100D First Test: A New Record - 0-60 MPH in 2.28 Seconds! - Motor Trend Specification: • 21″ Arachnid Wheel •Size: 21 X 8.5″ front,21 X 9.0″ rear. •Offset: +40 front, +40 rear •PCD: 5X120 •Center Bore: 64.1mm •Lug Nut Spec: 13/16 Hex, 14X1.50 Thread •Lug Nut Torque Spec: 129 lb-ft. •Weight: 26.5 lb front, 28.5 lb rear Package includes: • 4 Arachnid wheels • 4 Michelin Pilot Super Sport (PSS) tires • 4 tire pressure sensors • 4 Tesla logo wheel caps Photo of the silver wheels for reference purpose. Looking for $7000, local pick up in San Francisco Bay Area preferred. No rush in selling.