Yes, I re-used as much as possible from the V20. The drivetrain was Eagle AXS 1x with Quarq DZero DUB 165mm carbon cranks; that stayed the same, except I had to get the SRAM T47 DUB internal BB (note this uses an uncommon 52mm, 16-notch bottom bracket tool).
I also switched to TRP HY/RD flat-mount cable-actuated hydraulic disc brakes with 160mm rotors (note the rear required a tandem bike length brake cable). I use plain brake levers with a thumb shifter, not brifters.
The wheels are Specialized Axis Centerlock disc, take-offs from my 2017 Roubaix. The tires are WTB Exposure 30mm tubeless with Vittoria Air-Liner road foam inserts size L.
Here's a link for a deal on a pair of the HY/RD calipers with the front mount plate needed in the rear of the V20c:
TRP HY/RD Road Hydraulic Flat Mount Disc Brake Caliper Front / Rear or Pair