CNC-machined highest-quality aluminum C-hub for ARS suspension system. Caster pre-set at 0 levels. Suitable for high-traction conditions because it yields greater off-power steering, rotation and cornering rate. Machined from premium Swiss 7075 T6 aluminum and black colored coated. Etched with "0" for effortless recognition. Fits left or right edges. Includes two nylon bushings. The C-hubs are available in standard caster views (0°, 2°, 4°).