Blue Bicycles Norcross AL SRAM Apex Road Bicycle Construct with 6061 Alloy Tubing and PF30 bottom bracket shell Oversized tubing for superior stiffness and tracking C5CXD Carbon Cross Fork 1-1/8 - 1-1/2 inch tapered steerer tube, disc brake compatible only Internal shifter routing for a cable-free top tube Internal brake routing designed for hydraulic or mechanical disc brake systems