Raistyw 20 inch Wheels Mountain Bike,4" Wide Fat Tire Snow Bike for Women and Men ,7 Speed Bicycles, Green

High carbon steel frame wide tire children's bicycle, light but strong, suitable for children to control 7-speed transmission system, allowing the rider to shift gears smoothly. Smooth shifting Mechanical disc brake system with 160mm rotors front and rear ensures safety. 20*4.0" wide tire, wheel height up to 23 inches. Equipped with 100mm front suspension fork. Thickened outer wall is more impact-resistant 85% assembled, quick installation in 20 minutes, if you have any questions, please contact our customer service.