2025 NEW STYLE! COOL DESIGN! 60 DAYS FREE RETURN !! FREE SHIPPING !! HIGH VALUED! Features: Frame: Aluminum alloy frame Tire size: Zhengxin 20 * 4.0 fat tire Speed requirement: maximum speed=34.5MPH (instrument display shows 38MPH) 1st gear speed control 10 miles per hour; 2-speed control at 15 miles per hour; 3-speed control at 20 miles per hour; 4-speed control at 25 miles per hour; 5-speed speed control with maximum output .