If the metaphor for the Allegro 1 is a cup of latte, then the Allegro 2 would be a cup of cappuccino. They may look like they have similar characteristics, but they are quite different on the inside, and can give you a completely different feel. The only thing that has not changed is that they are both classics in the Croder Allegro series, and set the standard for bicycle wheelset. The Croder team gave the Allergro 2 durability, stable performance, and great climbing characteristics. When you need to choose a wheelset to practice and compete with, the Allegro 2 is your most reliable support.