Cosmic beast 18 inch bike cosmic beast 18 inch bike tech spec steel junior frame steel rigid forks steel quill handlebar stem steel bmx handlebars front and rear steel v brakes single speed 18 steel wheels 18 mtb tyres junior bmx saddle chainguard recommended inside leg measurement 19 23 inches recommended for ages 6 9 years assembled weight approx 116 kg please note all of our bikes are sold part constructed please be aware therefore that