RK 420MXZ & 428MXZ / GB420MXZ & GB428MXZ

These lightweight Mini-Works racing chains are newly developed from the same advanced alloy materials and manufacturing technology as theirbig brother GB520MXZ! Moderately priced, both 420 & 428 MXZ Mini-Works racing chains are the strongest in their class giving you the bestValue-Performance rating of any MX Racing chain in the world today! Also available in Gold.