Frame:alloy aluminum folding frame Front fork: Alloy Crown Suspension fork with Lock Battery: 48V 15.6Ah(showed 18ah) Lithium Battery Motor: high speed brushless 500W（showed 1000w) brushless motor Derailleur: SHIMANO 7 Speed Meter:LCD meter Driving Mode:Pure Electrical,Human riding&PAS Brakes: front and rear mechanical disc brakes Seat tube: Flip seat tube Tire: 20*4.0 Mudplate:PVC mudplate Cellphone mount:PVC "Toolkit: Pump Hex wrench 3mm/4mm/5mm/6mm/10mm Open-end spanner 15mm Wrench 8-10mm Type repair kit" Rearview Mirror Front Basket Storage rack Package:141*28.5*72CM Net weight: 40.8KG Gross weight: 45.9KG "Height: 123cm Length:175cm" "A20 Folded dimensions Height: 88CM Length: 100CM" Waterproof rating: IP65 Maximum vehicle load: 150 KG Reflective sheet position: On the front basket Maximum speed: When the instrument is idling, the speed is 25 kilometers per hour at factory installation. After the instrument is turned off, the speed can reach 45 kilometers per hour Range: Pure electric 60-80 km, assistive 80-100 km Charging time: 6 - 8 hours Controller information: Lithium battery sine wave Voltage: 48V Current: 18A Charger information: Special lithium battery 54.6V 2A Current: 2A