Many companies make bikes similar to Trek mountain bikes, including Specialized and Scott. Most other major bike manufacturers also produce a range of mountain bikes with models comparable to those from Trek.
The two main styles of mountain bike are cross country and downhill. Cross country mountain bikes are designed for maximum speed over rolling terrain and feature short-travel suspension and a lightweight frame. Examples of cross country mountain bikes include the Trek Top Fuel, the Specialized Epic and the Scott Spark. Downhill mountain bikes are designed for secure handling on difficult descents and feature long-travel suspension and a sturdy frame. Examples of downhill mountain bikes include the Trek Session, the Specialized Demo and the Scott Gambler.