1.Foldable and portable: the foldable road bike is 85% preassembled and comes with an aluminium folding clip for quick and easy folding. The folded size is only 80 x 58 x 35 cm / 31.5 x 22.8 x 13.7 inches. It can be folded into the boot of the car. 2.Adjustable design: the height of the armrest of the folding bike can be adjusted from 97113 cm/3844.4 inches, and the seat height can be adjusted from 7593 cm/29.536.6 inches, which is suitable for teenagers between 1.41.9 meters/4.66.2 feet tall. 3.6 Speed Folding Bike: 6 gears allow you to choose the right speed for your needs and different environments, easy to ride. 6piece rack and pinion disc is flexible and smooth for stable and accurate shifting in different terrains. 4.Stable ride: carbon steel frame with a maximum load capacity of 90 kg / 198 lbs. The shock absorber absorbs much of the vibration, and the elasticity of the rubber tyres ensures a certain shock absorption.