Quarq Riken gxp 172.5 110 bcd crankset Marked 10 speed only but I only used it on 11 speed and it worked great It has the update that allows for cadence without a magnet or anything 52t chainring is ok but could probably use a replacement soon 36t chainring is hardly used as I had a different one on there Very reliable power meter weighs 785g as you see it Feel free to ask any questions and thanks for looking