RaceStar RSF-1 Forged Wheels are a one piece wheel forged from 6061-T6 aircraft aluminum. This means no welds to leak or bolts to loosen. They are designed for larger diameter brake systems, making them perfect for use on late model vehicles. They are machined for conical seat lug nuts, and include with center cap. The hi-luster clear coat finished with gloss black accents make cleaning them easy, ensuring your race car looks its best. The RaceStar RSF-1 Forged Wheels are compatible with TPMS equipped vehicles.