on what scale? Unless your weighing it on a shipping scale or a certified DOT scale chances are its off, sometimes in the neighborhood of 20-40 poundsWhen it comes to a steel chassi CR or KX500 its more like 25-30 lbs more. Still less than the450's. The CR 233 lbs and KX500 is 234 lbs. Look into it. My bike weighs 219 lbs with no gas. I weighed it on a scale.