Cosmic robo 16 inch bike cosmic robo 16 inch bike tech spec steel junior frame steel rigid forks steel quill handlebar stem steel bmx handlebars front and rear steel caliper brakes single speed 16 steel wheels 16 atb tyres junior saddle enclosed chainguard front and rear mudguards handlebar plaque dolly carrier handlebar tassels recommended inside leg measurement 17 21 inches recommended for ages 5 8 years assembled weight approx 10