The Derbi GPX1 model is a Prototype / concept model bike manufactured by Derbi . In this version sold from year 2007 , the dry weight is and it is equipped with a Single cylinder, two-stroke motor. The engine produces a maximum peak output power of and a maximum torque of . With this drive-train, the Derbi GPX1 is capable of reaching a maximum top speed of . On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Derbi GPX1 has a frame with front suspension being and at the rear, it is equipped with . Stock tire sizes are 120/80-14 on the front, and 150/60-14 on the rear. As for stopping power, the Derbi GPX1 braking system includes Single disc. Ventilated size 245 mm (9.6 inches) at the front and Single disc. Ventilated size 180 mm (7.1 inches) at the back.
