Maximize Your Bike Performance. With the smartphone app, you can easily update firmware and customize electric shifting in addition to the e-bike assist power program. -Maximize the trail ride with customized settings in your own image. -AUTOMATIC SHIFTING not requiring any gear shifting operation is comfortable. But to make the shift timing a bit quicker, change the timing to your preference with the app. Ride comfortably even in a city with many traffic lights since it automatically switches to your favorite gear when stopping.