Thanks to the powerful drive system, comfortable seating position, and thoughtful features, you can leave your car behind more often and enjoy pure riding fun on two wheels; Trek's Removable Integrated Battery (RIB) looks good and is extremely user-friendly: The battery is completely integrated into the frame and can be easily removed without tools.; Stiff 27.5-inch wheels with thru axles ensure reliable and stable handling, while the large-volume tires guarantee a more comfortable riding experience.; Thanks to the lockout function of the suspension fork, you can always ride efficiently: locked on smooth asphalt, open on rougher roads.