Cancel speed limit operation method: Step 1: Please turn off the keyswitch first Step 2: press and holdthe left brake Step 3: Turn on the key switchand at the same time turn theright throttle three times withinten seconds If you want to limit your speedplease also refer to this videoDelivery time and transportation shipping method: (USA): Delivery from US warehouse, 2-7 days after payment, logistics carrier: FedEx, UPS (EU): Delivery from DE warehouse, 2-7 days after payment, logistics carrier: FedEx, UPS bike warranty conditions: battery, frame, motor, frame, controller, lcd display warranty: 365 days. bike warranty conditions: battery, frame, motor, frame, controller, lcd display warranty: 365 days. 【⚡400W E Bike】This electric bike adopts 400W 48V rear motor, which can provide strong power and the top speed can reach 20MPH. IDOTATA electric bike cross to power you through any terrain (dirt, street, beach). 【⚡10AH-30AH battery mountain bike】IDOTATA Electric bicycles Equipped with 48V 30AH large capacity battery, which provides fast charging in as little as 4 hour. It covers a range of 65 miles per full charge. The battery is removable, waterproof and is small enough to bring home or to the office to charge. 【⚡14*2.125 Mini Tire Electric Bike】 The off-road electric bikes specially use super strong professional 14 size fat tires that are wear-resistant and puncture-resistant. Its grip is strong, allowing you to easily deal with various road surfaces, and it can let you ride freely in mountains and cities to explore nature. The front fork is used for shock absorption and the middle shock absorption makes riding more comfortable and more stable. 【Good Choice for Adventure and Tourism】This e bicycles adopts a steel frame body, which has the characteristics of low density and high strength.. And it has a bright front light and a rear warning tail light, which can escort you safely when you go home at night. Ebike Basic information: Ebike Basic information: Frame material: iron Waterproof grade: IPX4 Motor: 48V400W high-speed motor, front and rear six-diameter aluminum ring Cell phone holder: with USB charging Battery information: standard 48V13Ah, weight 3.1kg, silverfish battery box Charger information: DC2.5\48V2A, European regulation Maximum speed: 35km/h, speed limit 25km/h Maximum mileage: 30km-45km Degree of climbing ability: max 20 degrees Bell: left brake handle with bell Front light: LED light, with horn Tail light: night and brake light Brakes: mechanical disk disc brakes Charging time: greater than 4 hours Maximum Load Capacity: 120㎏ Tire Information: 14×2.50 Front Fork Shock Absorption Information: Iron Shoulder and Iron Legs Shock Absorption System：Front single-shoulder double shock absorber, center single shock absorber, rear double shock absorber Riding Mode: Three modes Speed Mode: Speed control and handlebar acceleration Net weight: 26.80kg Folded size: quick release handlebar 80×36×58cm Product size: 133×53×114cm Handlebar height: 110cm Seat height (adjustable range): 102cm/78cm Packing size: folded packing size: 76*41*67cm Packing weight: 31kg Packing list: English manual, side reflector, charger + stirrups + multi-tools