Treks Fuel EX 8 is the ideal trail bike for mountain bikers who want a versatile full suspension ripper that can crush marathon & multi-stage races & still huck with the enduro crew. It hits the sweet spot of value & performance in Treks mountain bike line-up with an Alpha Aluminium frame, 140 mm front & 130 mm rear suspension, & a SRAM GX Eagle 12-speed drive train.