16 STACYC eDRIVE Brushless Stability Cycle, Perfect for 4-7yr old rippers under 75lbs, with 18-24 inseam The STACYC 16eDRIVE is the perfect choice for your little ripper that has some experience on a balance bike and/or more familiar with riding STACYC Stability Cycles and need a larger platform to shred. Your child should have inseam of 18" or more to adequately touch the ground with a slight bend in the knees for optimum sizing. Your child will be able to learn to push, balance and coast in the non-powered mode. Once they get that down you can graduate them to the holy grail of fun, the powered mode. 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 STACYC 16eDRIVE allows for an exceptional amount of fun outdoors, getting thousands of hours of hand-eye coordination, balance, and outdoor exercise.   FEATURES: Frame: Aluminum TIG Welded and Heat Treatment 16 Composite Wheels with Pneumatic tires Seat Height: 17 Weight: 20lbs with battery High Output Brushless Motor High 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 controller Power 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** 30-60 charge time *1 battery and charger included **Run-time is entirely dependent on terrain, hills, and skill level. Run-times are estimates and can vary.