Designed for adults and big youths, the KLX140RF motorbike combines a rigid KX based perimeter frame with long travel suspension and large diameter wheels (21” front and 18” rear), and a simple, yet reliable air-cooled 144cc single cylinder engine into a perfect sized package. Unique in offering a 150cc class engine in a lightweight full size chassis, the KLX140RF was made with new rider in mind. The engines power is easy to handle (ideal for riders not quite ready for a 250cc machine), and the bikes lightweight, slim ergonomics and low effort controls make it the perfect full size trail bike.