齒盤 FA3-212MAA

FA3-212MAA

曲柄: 170,172.5,175mm (Forged AL6061-T6)
齒盤: 52T(AL6061-T6 CNC)
中軸:Cups-BC-1.37x24/68mm/73mm
BCD: 130mm
鍊線: 43mm