I have two of these. One, with a 24 tooth inner ring on my bike and one with a 26 tooth on my wife's. Both have 48 and 36 outer and middle. These look good, mount well, shift well. We are both shifting them with 9 speed SRAM chain, IRD Alpina D derailer and Rivendell/DiaCompe friction shifters. With 9-speed 11-34 in back, shifted with Deore this gives a very wide range, reliable system.
