Billet Specialties Concave Pro-Touring GTR polished wheels. The centers can be powder coated for an additional $100 per wheel. Finishes available are Matte Black, Gloss Black, Gunmetal, Brushed Clear, Brushed Smoke and Clear over Polish. Prices listed below are for full polished wheels. Choose between two concave center profiles in Concave Shallow and Concave Deep for the ultimate in stagger and stance. Bolt pads feature relief cuts to shed weight from the wheel while providing clearance up to 1.75". SPECIAL ORDER WHEELS, please call for more information.