Gliding through the streets and skate parks with the wind at their backs, OLAKIDS bike for kids 10-12 is built for young riders who love challenges and adventure. With its bold BMX styling and 4 steel pegs, children can easily learn basic tricks and stunts, enjoying the excitement and fun of freestyle riding. Safety is always our top priority in both material selection and fine details. The 152mm one-piece crank and 25T chainring deliver a smooth, consistent drivetrain, helping young riders build control and balance with every practice session while showing off their growing skills. Designed to grow with children, the kids bicycle features an adjustable-height seat and 4 replaceable stem options (quill stem, threadless stem, BMX stem and basic stem) to suit different riding styles and developmental stages. Components and tools required for stem changes are not included. The girls bike arrives 85% pre-assembled, so kids can hop on and start enjoying the freedom and excitement of BMX riding right away.