Z650 returns to set mid-weight naked class alight. Light, nimble and eye-catching, the new Z650 enjoys stunning looks thanks to its unique Kawasaki Sugomi design influences while lusty performance and impressive torque is willingly delivered by the compact 650cc parallel twin, water-cooled engine. Kawasaki Z650, Refined Raw. This One-Owner KAWASAKI Z 650 has low miles and remains in great shape. Another clean trade for your consideration, comes with Qty. 2 Keys.