MODEL : TL053 CRANK MODEL : XD-2 CRANK MATERIAL : FORGED AL-6061-T6 CRANK FINISH : AA BCD : 110MM LENGTH : 165-175MM CHAINRING : 48T,50T,52T CHAINRING FINISH AND MATERIAL : HBK+CNC,ALLOY CHAIN LINE : 46.5MM B.B.AXLE : 108