Rotor 3D30 170mm Road/Triathlon Crankset 130mm BCD (please note, this limits the size of the small chainring you can mount on this crankset - you may need to change to a 110 BCD spider if you want to mount a smaller one) NoQ 53t large chainring and 39t small chainring 30mm spindle New take off from a triathlon bike I purchased in 2021. I already had a crankset with power meter which was swapped onto the bike at the bike shop. There is some minor surface rust on the rear bolts from sitting in my basement. This does not affect functionality.