MBK boy bikes focus on the active child. The models are designed for kids who may not always drive directly home from school. In addition to an always smart design, the bikes are packed with quality equipment that makes the bike better, more fun, and safer to ride. The components are carefully selected both to achieve high performance, but also because the bikes require minimal maintenance. MBK boy bikes are a safe choice that will undoubtedly create lots of fun on the bike ride. The bikes are available in wheel sizes: 20 inches, 24 inches, and 26 inches.