Rotor Inpower crank with power meter. The crank arms with the power meter are as good as new, as I bought them from Rotor at the end of last year and mounted them once but did not ride them. The chainrings are a bit older but still good for many kilometers. They work with 10-12 speed drivetrains. I used them with a Shimano 105 2x12 setup. However, I have now switched to SRAM and therefore have no further use for them. All possible spacers and the manual are included.