Starlite "55" hubs provide the superior strength of permanent mold, high-density aircraft aluminum at weights comparable to the much higher priced magnesium hub assemblies. The Starlite "55" features the strength of our traditional Starlite hub, but redesigned to eliminate unnecessary weight in the hub and its related components. 5 bolt Drive flanges and snap-cap front hubs pare the 'loaded' weight of these hubs to being the lightest available.