Cannondale is a well-known bicycle brand in the United States. It is affiliated to the Canadian Dorel Group and is headquartered in Bethel, Connecticut, USA. It mainly produces high-end bicycles. Canondale's famous representative product, the road bicycle aluminum frame CAAD9, is known as the "King of Aluminum Frames" and has been used many times in the three major cycling competitions.

Santa Cruz Bicycles is a famous American bicycle brand. It was founded in Santa Cruz, California, in 1993. Its unique VPP design technology and comprehensive range of models are deeply loved by bicycle enthusiasts.

Specialized is an American brand specializing in the production of bicycles and ancillary products. It was founded in 1974 by cycling enthusiast Mike Sinyard in Morgan Hill, California. Its LOGO resembles a bolt of lightning, hence its name.

Kona is a well-known bicycle brand in the United States. Since its founding in 1988, Kona has been committed to developing high-performance mountain bikes, touring bikes and racing cars.

Trek is a world-renowned bicycle brand. It was established in the United States in 1976 and aims to provide the best bicycles in the world to cycling fans around the world. Its series of products mainly include road bikes, mountain bikes and urban bikes. In addition, Trek has also designed many styles of bicycles specifically for beginners, such as the unique Dialed Fit system, which provides children with a safer and longer-lasting riding experience.