E-620x9The ultimate urban bike for adventurous big kids 620x9 Age: 10 14 years Height: 142. 5 170 cms Ability Level: Expected to know how to ride and is comfortable with major bicycle skills. Innovative and lightweight with every detail precisely sized for this step up bike. The Shimano 9 speed gearing is exceptional, with full cassette and twin hole cranks make distance riding easier than ever. Our unique ergonomic riding position and geometry, along with