Durabi-OS 600 53/39AA
．Length - 165mm, 170mm, 172.5mm, 175mm
．BCD - 130mm
．Chainring - 53/39T
．Chainline - 43.5mm
．Crank Finish - Forged Alloy 6061, High-polish Silver, Black Anodized
．BB Cups - BB -1.37x24/68mm
．BB Axle - Cromoly SCM 435
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