Both bikes include 7-speed gear systems for flexibility, rear racks for carrying cargo (up to 66 lbs on the ZA02), and bright headlights for evening rides. However, the ZA01 lacks integrated taillights, which would have been an added safety feature. The digital displays are clear and functional, although the ZA02’s password unlock feature felt unnecessarily complicated. Find more information here: https://coupongaza.com/zdza-electric-bike-review-is-it-worth-the-hype/