Load bearing life is upgraded again Mechanical design of alloy framestructure + strict test of high strength Multi function night vision digital LCD Third gear adjustment (faster or farther) Lithium battery 21700/ 18650/48V 15Ah~21Ah OEM accept 600/800/1000W Front and rear drive brushless motor Total power 1200/1600/2000W Front and rear suspension of high steel spring shock absorption Double front and rear shock absorption with thick tires Comfortable riding experience With headlights, highlight warning taillights and turn signals to ensure the safety of riders at night https://www.zjstcy.com/product/st1017-free-travel-convenient-folding-new-electric-scooter.html