The SP3P is a split five-spoke 3-piece design with innovations not seen in other similar wheels.. Each wheel is built with forged 6061 T6 centers, 6061 T6 spun rim halves, stainless steel aircraft-grade fasteners, and feature a painted or chromed finish with a polished or chromed lip. The SP3P is available in sizes from 18x7.5 to 22x12. Since each wheel built to order, Forgeline can offer special features like custom offsets, and a choice of center finishes.