Basic parametersFrame: 27.5-inch four-link aluminum alloy frameFront fork: shoulder iron aluminum leg mechanical lock front forkCentral shaft: sealed shaftGearbox: Haomeng AC49 three-layer discShifting: Shimano 21 speedPedals: aluminum alloy folding half pedalsMotor: 48V250W/1000W brushless motorBattery: Built-in 17AH lithium batteryTire: CST 27"*2.4Instrument: S866 LCD instrumentBrakes: hydraulic brakes, brake clutchesPower: five levels of powerGearbox: TX30 finger pull, TY500 front pull, TZ500 rear pullOther functions: horn, tail light, cruise control, charging mobile phone holderNet weight: 25KGTorque: 70N·mEndurance distance: 17ah pure electric endurance: 60km, power endurance: 120kmMaximum speed: 250W: 20-25km/h 1000W: 45-55km/hProducts DescriptionConfiguration parameterFrameAluminium alloytyre27.5/2.4 KENDAGearboxSHIMANO 21 speedBattery48V17AHMotor48V500W/1000WcontrollerKT 18ALCDKTMileage120KMBody size (L*W*H)184/74/102CMDetails ImagesMore productsPackagingCustomer EvaluationFAQQ1. What is your minimum order quantity? ​A: Our minimum order quantity is 1 order. We are happy to provide a unit of transportation and delivery service for every customer.Q2. How long for delivery time?A:Normally, the delivery time of spot products is about 20 daysQ3. What are the maintenance and support after purchasing the product ​ ​Q2. What is your terms of payment? ​A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages ​before you pay the balance. ​ ​Q3 . What is your terms of packing? ​A: Generally, we pack our goods in neutral boxes and brown cartons. If you have legally registered patent, ​we can pack the goods in your branded boxes after getting your authorization letters.​Q4. Can I use my private label or packaging on your electric bikes? ​A: Of course, we can not only print your logo on electric bicycles and packaging, but also provide OEM/ODM services. If you have any ideas, please feel free to contact our sales staff. ​ ​Q5. Do you test all your goods before delivery? ​A: Yes, we have 100% test before delivery ​ ​Q6: How do you make our business long-term and good relationship? ​A:1. We keep good quality and competitive price to ensure our customers benefit ; ​2. We respect every customer as our friend and we sincerely do business and make friends with them, ​no matter where they come from.