:?: just curios. I bought a 17 tooth afam countershaft sprocket for 2000 zx12r. Mine is a 2001, but the part number shows the same. When putting it on it would not just slide on like it should. the splines lined up, but it was to tight. I noticed the teeth were almost to short because they were not seating all the way to the base of the shaft, (almost as if it was machined wrong). I am going to order a different manufacturer. Anybody experience this problem. thanks to all Paul