The more professional the sports car, the harder and smaller the mountain mat, in order to reduce the friction with the leg root. If you adjust the cushion that is too soft and too big to the seat height of a professional car, it will be very uncomfortable and the riding friction will be great. There is also weight loss.

Generally speaking, I don't feel anything when I go to work 10 km. If you are riding for a long distance, you can buy cycling underwear (with a silicone cushion inside) or buy a silicone cushion to cover the bicycle cushion.

introduce

Mountain bikes originated in the United States, and were converted from ordinary bicycles by University of California student Scott. 199 1 year, the mountain bike world cup was held in San Francisco for the first time. 1996 became an official Olympic event.