To say that the most popular model in 2018, in addition to road vehicles, it must be indispensable for lithium-powered central mountain bikes. Mountain bikes equipped with TRUCKRUN mid-mounted motors give a rough, bold wildness. The external one-piece battery box can easily change the capacity of the battery. In addition to the rough shape of the whole vehicle, everything is completely inconsistent. It is an XC with a "power core". This kind of feeling is not only because of the shocking feeling brought by its sturdy body, but the most important thing is that the majestic appearance of the hair will show unreservedly. The transmission efficiency is high and the quality is stable. Especially when cruising and manpower pedaling, there is no motor anti-resistance and the energy conversion efficiency is higher.