STACYC: The  HARLEY-DAVIDSON BRUSHLESS IRONE16™ is the perfect choice for little rippers with some experience on a balance bike and are a little taller and/or more familiar with riding STACYC Stability Cycles and need a larger platform.Your child should have an inseam of 18” or more to adequately touch the ground with a slight bend in the knees for optimum sizing.Your child can learn to push, balance, and coast in the Non-powered mode.Graduate them to the powered mode (the holy grail of fun) as they show proficient use and understanding of the brake and the ability to coast and brake while standing.Start them with a speed similar to what they can push the non-powered version at, and they learn the use of the twist throttle, and a long coast turn into a constant use of throttle and giggles.As they continue to develop skills, the medium speed of the HARLEY-DAVIDSON BRUSHLESS IRONE16™ allows for an exceptional amount of fun outdoors, getting thousands of hours of hand-eye coordination, balance, and outdoor exercise. Perfect for 5-7yr old rippers under 75lbs, with 18-24” inseamFrame - Aluminum TIG Welded and Heat Treatment- 16” Composite Wheels with Pneumatic tiresSeat Height - 17″Weight - 20lbs with battery- High Output Brushless MotorHigh Output Brushless Motor- 20% more power and than original 16eDrive- 10% more efficient than original 16eDrive- Increased durability- No fuse- Thermal protection for motor and controllerPower selection modes- Low/Training mode ~ 5mph- Med/Standard mode ~ 7.5mph- High/Advanced mode ~ 13mph (with stock gear ratio)Industrial Grade, Lithium-ion Battery and Charger- Quick disconnect/connect battery- 20Vmax Voltage (18Vnom)- 4Ah- 30-60 min run-time**- 45-60 charge time