Zhigu's racing wheel rim is engineered for competitive edge, featuring a forged 6061-T6 aluminum barrel with CFD-optimized airflow channels. These channels improve brake cooling by 28%, lowering peak temperatures by 35°C during track use. The rim is 18% lighter than equivalent cast rims, reducing rotational inertia and improving acceleration. Available in sizes from 15-19 inches, it supports staggered widths (7.5-12J) and tire sizes from 205/50R15 to 335/30R19. Each rim is balanced to ≤10g and features a knurled bead seat for tire retention at high speeds. Tested to FIA Appendix J standards, it is used in professional drifting, rallycross, and endurance racing.