Our team of Engineers has designed and developed the Rock rider ST100 24". Due to its 24" tires, it is perfect for children's first Mountain Bike looking to ride trails or uneven pavement. It comes with a new sturdy steel frame. The frame's rear chain stays are short, making the bike responsive and easy to handle. We've designed this robust, easy-to-use (1 chainring) 24-inch mountain bike for helping children get started with Mountain Biking. With quick and easy front tire removal for easy transportation. Equipped with a bell, lighting, wheel reflectors, and platform pedals. Recommended for 9-to-12-year olds (4'5" to 4'11"). We offer a lifetime warranty on the bike's frame, stem, and handlebar. This Bike does not come included with a Kickstand or a Bottle cage.