CNC-machined highest-quality aluminum RIGHT C-hub for ARS suspension. Caster pre-set at 4 levels. Generates maximum traction. Recommended for very-low-traction conditions. Because the wheelbase is shortened a lot with this environment, it is recommended to lengthen a corner wheelbase by moving the rear hands completely straight back. Machined from premium Swiss 7075 T6 aluminum and black colored coated. Etched with "4R" for effortless recognition. Includes two nylon bushings. The C-hubs can be purchased in standard caster perspectives (0°, 2°, 4°).