Brand: AOSTIRMOTOR Model: S18-1500W Frame: 6061 Aluminum Alloy Rim Material: Aluminum Alloy Motor: 1500W Motor Controller: 48V 30A Display: Color-LCD Turn-Handle: Rotary Lithium Cell Capacity: 48V 15Ah Charging Time: 4-6 hours (Recharge regularly to extend the life of lithium cell) Fork: ZOOM Rear Rack: NO Brake: F/R Mechanical Brake (With 4pcs Brake Pads） Disc Brake: Front 180 & Rear 160 Brake Lever: Universal Rim Form: Spoke Wheel Tire: 26x4.0 inch Fat Tire Throttle: With Front Suspension: Fork Shock Absorption Rear Suspension: Rear Spring Shock Structure Shock Absorption: Lightweight Aluminum Alloy Frame Light: With Front & Rear Light Pedal: Universal Footrest: Universal Riding Mode: Pedal Mode/Boost Mode/Power-Mode Ranges Distance: 25-40km （Pure Power-Mode） Max Speed: 50km/h Tube Clamp: D1=30mm/1.18in D2=38mm/1.5in Handlebar Size: 31.8 * 660mm / 1.25 * 25.98in Stem Size: 28.6 * 31.8 * 110mm / 1.12 * 1.25 * 4.33in Saddle Size: 27.2 * 250mm / 1.07 * 9.84in Saddle Height: 0.88-1.0m / 34.64 * 39.37in Weight Capacity: 300lb Item Size: 1.95 * 1.1m / 76.77 * 43.31in Package Size: 1.63 * 0.82 * 0.28m / 64.17 * 32.28 * 11.02in Package Weight: 40kg / 88.18lb