SPECIFICATIONSAccessories: Mirror,Reflector,toolkit,cycling bagAge Group: Adults,TeensBattery: 52v 40ah Lithium Battery,52v 40Ah Dual Lithium BatteryBattery Capacity: 40ah,40AhBattery Position: Down TubeBattery Type: LithiumBrake: Hydraulic Disc BrakeBraking System: Hydraulic Disc BrakeBraking system: Front & Rear Hydraulic Disc BrakeBrand Name: yvyCharging Time: 5-8HDerailleur: 7-speedDriving Mode: Pure Electrical(front motor,rear motor Or two motors),Human ridingEndurance: 90-120kmExpanded size: 143*31*84CM 55KGSFeature: High SpeedFrame Material: High Carbon SteelGears: 7 SpeedMeter: LCD colorful meter+USB chargerModel Number: Q20Motor: Front and rear high speed brushless motorsMotor Type: High Speed,Brushless,Hub MotorMotor position: dual motorPlace of Origin: Guangdong, ChinaPower Source: Lithium BatteryPower Supply: Lithium BatteryRange per Power: 90-120 kmRear Hub: Hub MotorSpecial Feature: Dual Motor Electric Bike,Dual Lithium BatteryStyle: Standard,Dual Motor,Dual Lithium BatterySuspension Type: Rear,Front,Dual,FullTire Width: 20*4"Torque: 80-90 NmType: adult electric bike,Dual Motor Electric BikeVoltage: 52vWheel Size: 20"motor: Brushless,High Speed,Hub Motor #detail_decorate_root .magic-0{vertical-align:top}#detail_decorate_root .magic-1{padding:0;margin:0;color:#333;font-size:14px;padding-left:4px;font-weight:bold;white-space:pre-wrap}#detail_decorate_root .magic-2{text-align:center}#detail_decorate_root .magic-3{font-size:26px}#detail_decorate_root .magic-4{vertical-align:top;display:block;padding-right:4px;box-sizing:border-box;padding-left:4px}#detail_decorate_root .magic-5{vertical-align:top;padding-bottom:4px;box-sizing:border-box;padding-top:4px}#detail_decorate_root .magic-6{padding:0;margin:0;white-space:pre-wrap;font-size:14px}#detail_decorate_root .magic-7{font-size:20px}#detail_decorate_root .magic-8{background-color:#ea9924}#detail_decorate_root .magic-10{width:750px}#detail_decorate_root .magic-11{overflow:hidden;width:750px;height:950px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-12{margin-top:-95px;margin-left:0;width:750px;height:1126px}#detail_decorate_root .magic-13{border-bottom-style:solid;border-bottom-color:#53647a;font-family:Roboto;font-size:24px;color:#53647a;font-style:normal;border-bottom-width:2px;padding-top:8px;padding-bottom:4px}#detail_decorate_root .magic-14{width:750px;border-collapse:collapse}#detail_decorate_root .magic-15{min-height:28px;padding:5px 10px;width:259px;min-height:28px;box-sizing:content-box}#detail_decorate_root .magic-16{min-height:28px;padding:5px 10px;width:442px;min-height:28px;box-sizing:content-box}#detail_decorate_root .magic-17{overflow:hidden;width:373px;height:373px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-18{margin-top:0;margin-left:0;width:373px;height:373px}#detail_decorate_root .magic-19{overflow:hidden;width:373px;height:373px;margin-top:0;margin-bottom:0;margin-left:4px;margin-right:0}#detail_decorate_root .magic-20{margin-top:0;margin-left:0;width:373px;height:497.3333333333333px}#detail_decorate_root .magic-21{margin-bottom:10px;line-height:0}#detail_decorate_root .magic-22{margin-bottom:0}#detail_decorate_root .magic-23{position:relative;width:100%}#detail_decorate_root .magic-24{overflow:hidden;width:750px;height:562.5px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-25{margin-top:0;margin-left:0;width:750px;height:562.5px}#detail_decorate_root .magic-26{font-size:14px}#detail_decorate_root .magic-27{margin-bottom:10px;overflow:hidden}#detail_decorate_root .magic-28{overflow:hidden;width:750px;height:1291px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-29{margin-top:0;margin-left:0;width:750px;height:1291px}#detail_decorate_root .magic-30{overflow:hidden;width:750px;height:905.25px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-31{margin-top:0;margin-left:0;width:750px;height:905.25px}#detail_decorate_root .magic-32{overflow:hidden;width:750px;height:1333.860759493671px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-33{margin-top:0;margin-left:0;width:750.0000000000001px;height:1333.860759493671px}#detail_decorate_root .magic-34{overflow:hidden;width:750px;height:502.23214285714283px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-35{margin-top:0;margin-left:0;width:750px;height:502.23214285714283px}#detail_decorate_root .magic-36{overflow:hidden;width:373px;height:497.3333333333333px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-37{overflow:hidden;width:373px;height:497px;margin-top:0;margin-bottom:0;margin-left:4px;margin-right:0}#detail_decorate_root .magic-38{margin-top:-1px;margin-left:-74px;width:497px;height:497px}#detail_decorate_root .magic-39{overflow:hidden;width:750px;height:346px;margin-top:0;margin-bottom:0;margin-left:0;margin-right:0}#detail_decorate_root .magic-40{margin-top:0;margin-left:0;width:750px;height:346px}#detail_decorate_root .magic-41{font-size:28px} Note RIDSTAR , YVY ,Bozpin and Climtop are all our registered brands. Their performance and quality are exactly the same as those of RIDSTAR, and are all genuine products with guaranteed after-sales service. So please feel free to purchase.We have EU, UK, CA ,AU & USA Warehouse.Usually it takes about 3-5 days for the clients from Warehouse to get their order.What's more,self-pick up service is also available for some EU, UK, CA , AU & USA customers.If any questions,please send us the message.We are a professional manufacturer of e-bike with 15 year's experience in the field and the owner of Ridstar.We can provide OEM,ODE Service and also have ebike in our overseas warehouse.We would like to recruit the distributor all over the world.Please contact us to get more information. Product Description Product Model yvy Q20PRODual Lithium BatteryDual Motor Electric Bike Wheel size 20"*4.0 fat tire Frame material High carbon steel Battery capacity 52v 40ahDual Lithium Battery Braking System Front & Rear Hydraulic Disc Brake Charging Time 5-8 hours Motor position Front and Rear Hub Motor Battery Position Integrated Battery Drive mode : Pure electric (divided into front drive, rear drive and simultaneous drive by two motors), human foot pedal, andelectric assist Company Profile Huizhou Xingqishi Sporting Goods Co., Ltd. Hello, we are happy to meet you on Alibaba. We are Huizhou Xingqishi Sporting Goods Co., Ltd. A professional factory in designing and manufacturing various kinds of electric bicycles and scooters. One of the brand is Ridstar. Our factory locates in Huizhou City Guangdong Province. Near Shenzhen, Guangzhou and Hongkong. About 1.5 hour driving from international airports of Baiyun, Shenzhen and Hong Kong China Kai Tak Airport. We warmly welcome customers from worldwide to visit us, guide us and negotiate business with us for achieving common progress. Our factory focuses on designing and producing all kind of delivery electric bikes, city electric bikes, folding electric bicycle, mountain electric bicycles and scooter or OEM based on customer requirements. All products are strictly produced and tested based on international standards. Our products have been sold worldwide and trusted by our customers and won a good reputation. Producing more than 10000 units a month. In the coming time, we like to keep on expanding business with our elationship partners and developing new partners in world market for long run business. Why Choose Us Packing & Delivery FAQ FAQ Q1. What is your terms of packing?A: Generally, we pac 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.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 delivery?A: FOB. Q4. How about your delivery time?A: Generally, it will take 20-35 work-days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. Q5. Can you produce according to the samples?A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures. Q6. What is your sample policy?A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost. Q7. Do you test all your goods before delivery?A: Yes, we have 100% test before delivery. Q8: 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.