2023 has some of the most exciting new aero bikes on the market. We've pulled together 8 of the best aero bikes for 2023. After the change to the UCI's stipulation surrounding the 3:1 rule saying that tubes can't be more than 3x deeper than their width, we've started to see some incredibly creative designs. Trek, Bianchi and Scott have all taken advantage of the new rules and have gone deeper in their tubing than ever before.