Established in 1992, Sumai Bicycle Co.,Ltd. is one of the biggest China trek bicycle manufacturer and wholesaler. We've gotten the WMI (World Manufacturer Identification) since 2005. Our company has perfect quality management systems with ISO9001 international quality authentication in 2002 and pays great attention to new product development. We have high-quality staff at design, oem trek bicycles development and production fields, and have introduced in qualified personnel from foreign bicycle enterprise. Most of our products have been approved with CE certificate, and some approved with EEC, EPA and CARB.

For a hardtail mountain bicycle designed for trail riding, the Trek 4500 handles road cycling surprisingly well. This is a mid range mountain bicycle, superior to the budget department store bicycles, but still affordable and flexible enough to fulfill a variety of uses. While the middle of the road components from Shimano, Bontrager, and RockShox aren’t ideal for the most demanding trails, the beginner or intermediate rider should have no complaints. The Bontrager Jones ACX tires handle dirt and cement with equal effectiveness, and the Shimano Alivio shifters help build up impressive speed as you move through the 24 gears. The RockShox Dart 1 suspension fork is stiff but offers 80mm of travel. Whether you’re looking for a hardtail mountain bicycle for moderate trail riding and the occasional urban ride, or for daily cycling around town with the odd off-road trail thrown in, the Trek 4500 offers the flexibility you need.

In the all-new Madone, Trek Bicycle has taken its quest for perfection to new levels. Charged with creating the world’s finest all-day performance bicycle, an army of engineers, designers, physicists, chemists, carbon producers, bicycle shop owners, project managers and riders spent the past two years elevating the Madone from elite racing cycle to the consummate performance experience. The result of their efforts is an exquisitely balanced machine that delivers a transcendental riding experience.
The new Madone represents the largest design project Trek has undertaken on any bicycle, at any time. It was born from the expertise of seven consecutive Tour de France victories, more than 15 years of OCLV Carbon engineering experience and the input of Lance Armstrong and other world-class riders. The Madone underwent hours of FEA analysis, exhaustive real-world ride testing and 30 different lay-up schedules as engineers fine-tuned every detail of this ultimate riding machine.

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