For sale set of S-Works Power cranks with potentiometer on both sides practically new. Calibrate and measure the power without alterations. They are in perfect condition and ready to use, one of the lightest on the market (sold for having moved to 165mm cranks by biomechanical study). The Ceramic Speed spider is included. Praxis chainrings from the last photo, 52/36, can be delivered. - Carbon dual power meter (left and right) - 170mm size - Ceramic Speed spider dura ace, quarq, rotor, power 2 max, sram, ultegra, shimano, garmin, vector, assioma, favero, look, 4iiii, 2inpower, red, axs, dub, s...