Ride ACE01 and start a wild journey! VIVI ACE01 is tailor-made for off-road enthusiasts. Its 750W high-speed motor, 90Nm torque, 48V 15Ah battery and long range will ensure that you have enough power and strength to deal with any obstacles and conquer all terrains with ease. The newly upgraded high-precision torque sensor ensures a smooth and sensitive ride for a more natural riding experience. Embark on an adventure with ACE01 equipped with a torque sensor and experience an unprecedented all-terrain journey. 750W high speed brushless hub motor, 90Nm Up to 1475W peak motor power Removable 720Wh semi-integrated battery New upgraded torque sensor Intelligent 5 level pedal assist and digital LCD display  Suspension fork with lockout and adjustment, 100mm travel Hydraulic disc brakes with 180mm rotors Shimano 7-speed gear system 54.6V 3Amp smart fast charger Top 25Mph and Up to 60 miles of riding range (pedal assist) 26 × 4.0" all terrain fat tires UL-2849 and UL-2271 certified safety