Rotor InPower Direct Mount MTB Powermeter Crankset 175mm. BB30 Boost Spacing Good Crankset, and a single sided powermeter. Accepts the standard Rotor direct mount chainrings. 32t chainring included I've had no issues with this crankset. Just selling because I decided to go to shorter cranks The crankset is missing the adjustable spacer on the crank spindle. I took it off for clearance reasons when I got the crankset and I've managed to loose it since then. Works fine without it, a wavy washer is a better substitute anyways.