The new Trek Fuel EX 29er frame is available in two versions,
monocoque carbon fiber or aluminum triple butted. In each case, entire new is the geometry of the frame, specific for the 29er and realized to obtain a high maneuverability, while maintaining the typical stability of 29er. The frame is available in six sizes. The headset is tapered. The triangle of the rear suspension is made with the seatstay carbon fiber and aluminum chainstay. The derailleur has mounting Direct Mount. The rear brake adopts the scheme Post Mount. The rear axle is standard 142x12, the front one is 15 mm. The link of the suspension is made of magnesium. The travel of the suspension Fox, equipped with the CTD, is 120 millimeters. The bike is available in two different assemblies with carbon fiber frame and in four different assemblies with aluminum frame.