9000 Crankset 172.5, 50/34. Both left and right arms and chainrings. Stages Dura Ace 9000 left crank arm power meter. The item "Shimano Dura Ace di2 9070 groupset + Power Meter" is in sale since Sunday, November 18, 2018.This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Build Kits & Gruppos". The seller is "boozeman27" and is located in South Bend, Indiana. This item can be shipped worldwide.