Aldhu Alloy Crank Arms | Rotor America,Rotor Aldhu Carbon aero 12s (54/42 55/42 56/44 58/44),Aldhu Cranks,Opinion: go rotor aldhu or stick with a japanese crank like sugino/ dura ace. Japanese would stay true to the frame but the rotor would look so good on the frams :,Amazon.com : SUGINO Zen Chain Ring, 144W/HEADER 48T, Black : Sports & Outdoors