Wood the growth of the young timber in open stands after the old trees have been removed is more rapid than in trees in a closed forest, and in the manufacture of articles where strength is an important consideration such "second-growth" hardwood material is preferred. This is particularly the case in the choice of hickory for handles and spokes. Here not only strength, but toughness and resilience are important. The results of a series of tests on hickory by the U.S. Forest Service show that: The effect of rate of growth on the qualities of chestnut wood is summarized by the
Comstar wheel rim made by D.I.D that was fastened to the spokes using aluminium rivets. The spoke pieces were bolted to the rim with steel bolt and nut fastenings in either three, five or six pointed star configuration. What metal the spokes were made from depended on the model of motorcycle. The CB400T for example used steel for the spokes and alloy for the rim, whilst the CBX and the Super Dream used alloy for both the spokes and rims to further reduce unsprung mass. This type wheel was considered "maintenance free" with no user serviceable parts and Honda had "Do Not