The new Bosch motor is smaller, lighter, more efficient, and simply better: It provides a more natural riding feeling when you pedal and doesn't slow you down when you don't; Trek's Removable Integrated Battery System (RIB) looks good and is user-friendly: The battery is completely integrated into the frame, well protected, easily removable without tools, and has space for a water bottle holder.; The Kiox controller with color display provides you with all the important riding data, connects via Bluetooth® to your compatible devices, and has a built-in anti-theft function.; The dropper seat post allows you to lower the saddle while riding so that it's not in the way during descents. Additionally, this makes dismounting easier.