Originally Posted by msu2001la

Some teams run 1x for the flatter classic races now. Also a lot of TT bikes are going 1x for flatter courses.

Trek Segafredo ran 54T front rings with 10-36 cassettes at Paris Roubaix and a few other races in 2022. The benefits they cited are a straighter chainline and less chance of chain drop on the cobbled sectors of the race - further helped by the K-Edge chain guide. Looks like a narrow-wide chainring, and that SRAM AXS RD is clutched/damped to eliminate chain slap and bounce.

Pretty sure the Shimano teams are still all on 2x for these races, which probably has to do more with being "sponsor correct" than anything else.


Edit - it actually looks like a few Shimano teams did run 1x as well. Total Energies had a few bikes with XTR and GRX derailleurs this year: