2 models
Author's junior range is built around the same principles as their adult line — proper geometry per wheel size, hydraulic disc brakes, and Shimano components. The short-crank spec (150–152 mm) is key:
The Smart is Author's entry-level kids offering — the first proper bike for young riders who have outgrown 20" wheel sizes but don't yet need the full specification of the Junior line. It retains allo
