I bought a 2021 TCR Adv. 1 and would like to install an aftermarket stem. Can I just swap the proprietary aero cone spacer and the matching headset spacers with conventional round parts? Thought about replacing the whole headset but I'm struggling to find the right specs. Spending hours...

The new TCR is claimed to be 12 percent lighter than its predecessor (click to enlarge). In a week when Specialized and Scott rolled out new aero super bikes with copious amounts of next-gen integration and eye-catching wind tunnel data, Giant pedaled a more traditional path, unveiling the...