This should be the final sprocket design to be tested for the Eighthinch cranks that will be out shortly. The main difference between this and the last design is the 7075 aluminum over the 6061 and a completely black finish. The 48 spline and star shaped insert are proving solid while these cranks are getting a beating…and its holding up just fine! When these do release the sprockets will come in 35, 37, 39, 41, 43 and 45t with the arms available in 160, 165 and 170 lengths. Keep a head or two up for these!