We gave our daughter the Belter 16 for her 4th birthday. She's 6 now and still loving it. We are a bike commuting family, so we needed her first pedal bike to be something easy to ride to build her confidence. That's how we justified the cost of this bike. We also have a younger daughter to pass it on to when she outgrows it. She had been riding a balance bike since age 2. We took off the pedals at first to let her transition to the bigger frame and get used to the hand brakes. She probably would have fit a 14 better, but it's a big investment and we wanted some longevity! After a couple weeks on her tip toes riding like a balance bike, we put the pedals back on. At first, she needed help getting going, but was soon biking completely independently, and even managed a 3 km commute to preschool most days! It's a beautiful, well built bike that turns a lot of heads! We'll definitely buy the next size up when she outgrows this one and passes it down to her little sister.