The Apex 1 crankset completes the Apex 1 group, SRAM's most affordable road 1x™ drivetrain yet. Using patented X-Sync™ technology, the Apex 1 crankset runs silent and secure. Riders looking for a wide gear range and shifting simplicity at a great value will find it in Apex 1. Patented X-Sync chainring technology provides unparalleled chain retention as part of a complete SRAM 1x system Integrated 4-arm, asymmetric spider maximizes stiffness to weight Greater frame and tire clearance than other road cranks, 2mm per side SRAM 1x road 10-speed and 11-speed compatible SRAM Model ID: FC-APX-1-A1 Attributes BCD 110 BB Inclusion No Chainline 45.5mm Teeth 42 Crank Spindle Diameter 24/22mm Interface GXP Crankset Weight 807g Crankset Material Aluminum Pedals Thread 9/16'' Primary Color Black Speed 10/11 Drivetrain Spacing Road