Dimension: Body material: Q195 carbon structural steel Folded size: 800*500*680mm Expand size: 1390*530*1040mm Pedal distance from the ground: 72-90mm Wheel size: 16 inches Packing size: 810*370*640mm Specifications: Maximum load: 120kg Rear shelf load: less than 15kg (can t carry people) Maximum climbing angle: 25 degrees Operating temperature: -10~45℃ Waterproof defree: IP54 Electronic Parameter: Battery capacity: 8.4AH Battery Ratevoltage: 36V Motor drive mode: Manpower Assist Motor rated speed: 480±10r/min Motor rated voltage: 36V Motor rated power: 500W Charging voltage: DC42V Charging time: 4-5hours UL 2849 Certified UL 2849 Certification Number：STL2023S1101007C-S1 Reminder: COLORWAY-BK5M is single-speed gear not 7-speed gear. Please confirm before ordering. We do not accept returns due to such reasons. You may receive a shock-absorbing saddle as a gift(random）. The shock-absorbing saddle will be 3-5cm higher than the ordinary saddle. But there will be a more comfortable shock absorption effect.