FSA SL-K Light Crankset 2x 52/36T Chainrings 172.5mm Arm Length 110BCD Asymmetric Bolt Pattern 386EVO Spindle – BLKAsymmetric Bolt Spacing (ABS) technology with five asymmetric arms providing ultra lightweight direct power transfer Optimized design distributes load on the crankset BB386 Evo standard based on the PF30 standard but is now wider at 86mm The crankset can be installed on almost every frame using a BB386 Evo bottom bracket TECH SPECS Chainline 49mm BCD 110 Speed 11 Crankset Material Carbon Crankset Weight 590g Crank Arm Length 172. 5mm BB Inclusion No