Anything less than Dura Ace, Red or Record Carbon is not taking it seriously! 😀
Seriously though… most people’s first CX bikes are built using whatever spare parts are lying about in the shed. My first 2-3 CX bikes were a real mish-mash of road and MTB stuff all banged together – and they worked perfectly.
With my mature years and discerning connoisseur style, my new CX bike has full SRAM Red gruppo, with Avid Shorty Ultimates (just about THE most expensive cantilevers known to man), lots of fancy parts and a beautiful set of expensive, handbuilt wheels. But I’m a whore….
Just build your first CX bike with whatever you’ve got and ride the heck out of it!