Please carefully read the product manual before purchasing: √. This is a 14 inch small lightweight folding bike, suitable for adults and teenagers for simple commuting and cycling √. It can withstand a weight of 200 pounds and is suitable for people between 120 and 180 centimeters tall. Please choose based on weight and height √ We do not provide any free assembled bicycles, nor have we collaborated with any local bicycle shops that can provide free assembly. √ Due to transportation requiring us to complete 85% of the assembled components, you can proceed with the remaining installation according to the product manual after receiving the goods. If you have any questions, please contact store customer service. You can also consult customer service for product installation videos