Adv2 and adv3 are different from each other in the aspects of speed change kit, brake wheel set and handle set. 1. Technically, 2022 tcradv2 adopts the latest advanced composite technology, and matches with the VUELTAPROSL wheelset, while adv3 matches with the d-fuse system, and all components on the frame are optimized. 2. Where applicable, the 2022 tcradv2 is an all-around road racing car, while the adv3 is a comfortable road bike.