Piranha Pronto Kid's Bike, 12 inch Wheels, 10 inch Frame, Boy's Bike, Blue Frame/Fork: 10 inch juvenile alloy frame with steel fork Wheels/Tires: Aluminum rims with 12.5 x 2.25 inch tires Drivetrain: Single speed, one piece crank Brakes/Cockpit: Rear coaster brake, steel quill stem with alloy handlebars Includes: Chainguard, training wheels