X21 MAX utilizes a new gearless motor: X21 MAX utilizes a new gearless motor: (1) The gearless motor has low friction, resulting in low energy consumption and low noise. (1) The gearless motor has low friction, resulting in low energy consumption and low noise. (2) The gearless motor outputs smooth torque and stable speed, allowing for extremely high precision. (2) The gearless motor outputs smooth torque and stable speed, allowing for extremely high precision. (3) Gearless motors do not produce pinning and desynchronization problems, resulting in smoother operation. (3) Gearless motors do not produce pinning and desynchronization problems, resulting in smoother operation. (5) Gearless motors are more difficult to process and cost more. (5) Gearless motors are more difficult to process and cost more. (5) The control algorithm of gearless motors is relatively complex and requires the use of advanced control technology. (5) The control algorithm of gearless motors is relatively complex and requires the use of advanced control technology. X21 Max Basic Feature： Expanded size: 174cm*97cm*65cm（68.5"*38.2"*25.6"） Actual weight: About 55kg （99LBS） Frame material: aluminum Front fork: Hydraulic Front fork Braking system: Front and rear hydraulic brakes Transmission system: Rear drive Tire size: 70/100-19 Off-road Tyres Applicable height: 160-195cm(63"-76.8") Display: LCD Maximum speed ≤85km/h (52.8MPH) Endurance 80-120km (50mile-75mile) Slope <35° Waterproof grade: IP67 Load weight≤150kg （330LBS） Motor parameters: 60v3000w Brushless Motor Charging Output power 3A Charging time 4-8H Battery type: 60V30AH lithium battery Undervoltage protection: 60V Overcurrent protection: 80A