CNC-machined highest-quality aluminum C-hub for ARS suspension system. Caster pre-set at 0 degrees. Recommended for high-traction conditions as it yields greater off-power steering, rotation and cornering speed. Machined from premium Swiss 7075 T6 aluminum and black coated. Engraved with "0" for easy recognition. Fits left or right edges. Includes two nylon bushings. The C-hubs can be found in standard caster perspectives (0°, 2°, 4°).