The Start 24" continues our mission of making low maintenance bicycles that help your kids ride confidently and comfortably with: Rust & Grease Free Gates Belt Drive Multi-Terrain Tires so your rider can go anywhere Adjustable Angle Stem so the bike can grow with your child 3-speed Shimano Hub & Grip Shifter to hit hills and cruise down the bike path without getting tired (equivalent gear range to a 7-speed derailleur bike) Low-step Aluminum Frame for rust-free, lightweight comfort, and ease of mounting/dismounting All-Weather Grips & Seat for comfort and durability Dual Hand Brakes for safe, confident stopping power Kickstand included A composite belt guard is installed with every bicycle Full reflector kit: Front, Rear, Wheels, Pedals A Wide Color Selection to fit your child's interest Seat Height: 27" - 34.5". This bicycle generally fits children 7-13 years old. To confirm that this bicycle is right for your child, measure their inseam (shoes off, ground to top of crotch). Note that novice riders will ride flat-footed, while advanced riders will be able to balance at a stop on their toes. For novice riders, the seat height and inseam range are the same, this fits children with a 27 - 34.5" inseam. For advanced riders, the seat should be approx. 1.5" taller, and thus this bike will fit children with a 25.5 - 33" inseam. Have a child a little too young for the 24”? Get them started on the Start 20”! PSA: Most bicycles are selling out before they are produced . If you are looking to purchase a bicycle, we encourage you to back-order early. Our individual product pages reflect the most accurate back-order and ship dates for each model. These dates are updated in real-time for future purchases, and we generally sell out of most models before the date posted. Secure your ship date with a back-order, which can be cancelled at any time for a full refund before your bicycle ships. Looking for another size? Click here for the START 16 and here for the START 20 . Kids love our classic Ding Dong Bell, available here !