SSR Professor SPX wheels celebrate a milestone in Japanese wheel engineering as the 10th model in the iconic Professor lineup, introducing a dynamic twin 5-spoke face built on authentic 3-piece modular step-rim construction. Marking a historic first for the Professor series, the SPX offers dramatic Concave and Super Concave disc face profiles, combining a cup-shaped recessed center hub with sharply sculpted, reverse-tapered twin spokes. Constructed by joining low-pressure cast center discs with heat-treated spun aluminum barrels, the SPX delivers track-tested structural strength, optimized weight distribution, and an aggressive, wide-stance aesthetic tailored for high-performance sports cars and luxury tuners.

• Heat Treatment Manufacture (HTM) inner barrel technology enables thinner, lighter aluminum without compromising structural rigidity
• Step-rim construction with reverse-taper twin-spoke geometry maximizes visual width and enhances rim lip depth