• Campagnolo Centaur Carbon Power Torque 10-Speed 172.5mm road double crankarms, and OEM alloy chainring bolts, ONLY. Out of box.
• Power Torque splined bb, with installed sealed-bearing on the drive-side arm.
• 135BCD means a small ring of 39T and Campagnolo quality from 2011.
• English standard 9/16"x20 threading.
• 517 grams/1lb.2.2oz.
• CSCA643.
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