Two-piece forged wheels consist of a forged center disc and forged outer rim connected by high-strength bolts (tensile strength 1200MPa). This modular design allows width customization (swapping outer rims from 7J to 10J) and offset adjustment (+10 to +40mm). Made from 6061-T6 aluminum, they weigh 20% less than cast multi-piece wheels (9kg for an 18x8J rim vs. 11.2kg). Applications include performance cars (Nissan GT-R wide-body), off-road vehicles (beadlock conversions), and luxury SUVs (Range Rover Sport), with spoke designs such as split 5-spoke and Y-spoke with concave profiles.