ENTRY-LEVEL PRO STUNT SCOOTER FOR YOUNG RIDERS. The Madd Gear Carve Pro is designed for kids ages 6–10 who want to learn tricks at the skatepark or ride freestyle in the driveway. Unlike adjustable scooters, pro scooters have fixed-height handlebars for safety—bars should sit between the waist and navel of the rider for the best control. At 30" tall with a 4" × 19" aluminum deck, the Carve Pro is perfectly sized for beginners who are ready to progress.