The frog 52 kids bike 2017 is a perfect bike for any young aspiring rider with child sized tektro brakes which have adjustable levers ensures any size of hand can get full use the bike also includes high quality lightweight frame and forks meaning the bike is sturdy enough for any challenges your child can throw at it the frog 52 also has a 8 speed shimano easy change thumb shifters and easily adjusted saddle height meaning the rider is in full control when behind the handlebars al