The new Bosch motor is smaller, lighter, more efficient, and simply better: It provides a more natural riding experience when you pedal and does not impede you when you don't; Trek's Removable Integrated Battery System (RIB) looks good and is user-friendly: The battery is fully integrated into the frame, well protected, easily removable without tools, and accommodates a bottle cage; The Kiox controller with color display provides you with all the important riding data, connects via Bluetooth® to your compatible devices, and features an integrated anti-theft function; The dropper seat post allows you to lower the saddle while riding so it doesn't get in the way on descents. Additionally, it makes dismounting easier.