Zhigu's custom 3 piece wheels offer ultimate modularity, featuring CNC-machined 6061-T6 aluminum centers and spun-forged stainless steel outer rims. This design allows independent adjustment of width (8-16J), concave depth (up to 3"), and offset (-30 to +50mm). Aerospace-grade titanium fasteners (12.9-grade) secure components with 100% torque consistency, while TIG-welded seams on the rim ensure airtight integrity. Customization extends to spoke thickness (3-8mm), bolt pattern (5-10 lug), and surface finishes including brushed, polished, or DLC-coated. Dynamic balance is maintained within 15g, and each wheel is X-ray inspected for internal defects. Ideal for show cars and high-performance builds.