CNC-machined highest-quality aluminum RIGHT & LEFT C-hub for ARS suspension. Caster pre-set at 2 levels. Helps to create more traction in once produces more off-power steering and cornering rate when compared with standard rear suspension system. Suitable for medium-traction conditions. Machined from premium Swiss 7075 T6 aluminum and black coated. Etched with "2R" for simple recognition. Includes two nylon bushings. The C-hubs are available in standard caster perspectives (0°, 2°, 4°).