Material Aluminum Alloy Motor 750W Rated, 3300W Peak Power Hub Motor Torque 120 N·m Tires 20" × 4.0" Puncture-Resistant Tires Suspension Full Suspension / Front 100mm Adjustable / Rear DNM 55mm Adjustable Travel Single-Battery Version 60V 20Ah Lithium-Ion Battery × 1 Dual-Battery Version 60V 20Ah Lithium-Ion Battery × 2 Max Speed Up to 40 MPH – Off-Road Mode* Max Mileage Up to 180 Miles with the Dual-Battery Version in PAS Mode 1* Charging Time Approximately 2.5–3 Hours Maximum Climbing Degree 47% Max Load Capacity 150 kg (330 lbs) Waterproof Rating IPX4 Brake 4-Piston 203mm Hydraulic Brakes Transmission System Shimano 7-Speed Display 3.5" Full-Color TFT Display Bike Weight 102 lbs (46.3 kg) *Actual speed and range may vary depending on rider weight, terrain, road conditions, riding style, and other factors.