Royalbaby Space No. 1 Aluminum Kid's Bike, 12-14-16-18 inch Wheels, Four Colors Available Frame/fork: TIG welded steel frame and TIG welded steel fork available in red/Blue/orange/white/Green/pink and in frame sizes 12-14-16-18-20 inch Wheels/tires: steel 20 hole rims with rubber wide 2.4 inch knobby tires with custom Royal Baby tread Drivetrain: enclosed chain guard, non-slip resin pedal with reflector and one piece crank Brakes/Cockpit: Front caliper brake and rear coaster brake and special kids size brake lever, Kraton soft rubber grips and special juvenile saddle and quick release seat post clamp Includes: Bell, assembly tools, fenders, kickstand and owner's manual. Recommended child height: 53-65"; recommended child age: 6-9 years; saddle height: 24-29.5"