曲柄: 170mm (Forged AL6061-T6) 齒盤: 24/32/42T (Alloy 7075-CNC) 中軸:Cups-BC-1.37x24/68mm/73mm 鍊線: 50mm BCD: 64/104mm Speed: 3x10s Weight: 825g
曲柄set MA9-731C-NT