Model GN27 Battery capacity 48V10.4AH battery net weight 3.1KG Charger 54.6V2A Charging time 4-6H Motor brushless Motor power 48V750W Max speed 35KM/h Gear 7 speed Tyre spec 27.5X1.95 Frame 27.5High-carbon steel handlebar steel Seatpost adjust height High-carbon steel，80-100cm Fork material Aluminum Max load 120KG https://gunai.eu/products/new-product-gunai-gn27-electric-bike-750w-electric-mountain-bike