PRAXIS WORKS Turn Zayante M30 Hollow Forged Crankset 110BCD 172.5mm with 46/36 Rotor Chainrings and BB30 to M30 BB- USED. I personally never used these cranks they came with a cyclocross race bike that had been upgraded to a crankset with power meter. Looking at them. The chainrings appear to have light to moderate use the crankset and BB appear to have seen very little use. See pictures. Crank ID# 510-140912103 BB ID# 510-140912068 Crank Specifications: 172.5mm Arm Traditional 5-Arm 110 BCD For 9/16 axle pedals M30 AL Spindle – 30mm with 28mm step-down Requires Praxis M30 BB: BSA, BB86, BB30/PF30 (30mm Drive/28mm NonDrive) Self-extracting bolt system 8mm hex bolt Made from hollow forged aluminum