Industry Nine Solix Classic Front Hub - 15 x 110mm Center-Lock Black 28HOptimized for mechanical efficiency, competitive weight, and increased durability Continuously phased five pawl freehub and 121 tooth drive ring offering 605 points of contact and . 59 engagement. Reduced pawl rotation, decreased pawl spring pressure, optimized drive ring diameter, and contact seal layout brings resistance and freewheel noise to a minimum Unique scalloped flange design more effectively distributes stress than a simple round shape