Fuel EXe 9.7 The Fuel EXe 9.7 redefines e-mountain biking with an entirely new motor that tucks away neatly for a ride that's light, lively and just as playful as a traditional mountain bike, with the added benefit of pedal-assist to help you crush climbs. An upgraded suspension package pairs with cherry-picked components for snappy shifting and precise modulation on the trail. All that, and a lightweight carbon chassis to keep your ride nimble and stiff with just the right amount of vibration-damping goodness for when the trail gets rowdy.