Birzman Crown Race Setting Tool Description: The Birzman Crown Race Setting Tool helps mechanics of all levels install the vital crown race of headset assemblies on to 1" and 1 1/8" fork steerer tube bases with precision and ease. The oversized setting tube combines with your choice of the 2 included inserts to press your crown race in place when hammered from the top. Features: Shop quality tool designed to install headset crown races Compatible with 1" and 1 1/8" fork steerer tube bases Made from strong alloy steel for long lasting durability Includes: (1) Setting Tube (1) 1" Crown race insert (1) 1 1/8" Crown race insert