Feather-light: Full carbon fiber frame, weighing only 14.5 kg (without battery), for easy transport, folding, and storage. Extra-large capacity 20 AH lithium battery: A single battery provides a travel range of 20 km; an optional additional 20 AH battery can be added to extend the range to 40 km. UK PG VR2 BLDC brushless controller and control box. Large 8″ front and 12″ rear wheels with shock absorption: Each front wheel is equipped with two sets of suspension springs, and the rear wheels use shock-absorbing, perforated tires. Detachable Contour comfort 3D seat cushion. Carbon fiber rear wheel rims to further reduce the total vehicle weight. Equipped with a rear light for safer travel at night. Includes an original detachable cup holder bag. Original buckle-style safety belt. Simple Folding: A one-touch folding system makes folding the chair fast and simple, perfect for travel and storage. Optional airline-safe lithium battery (10 AH) available for purchase, making your next adventure worry-free.