Tesla is reducing the Cybertruck's range extender by about 25 miles and delaying its release.Anadolu/Anadolu via Getty ImagesTesla delayed the Cybertruck range extender and reduced its range estimate by 25 miles.Initially advertised with up to 500 miles of range, the production Cybertruck arrived with significantly less.Tesla's solution was the range extender, which sits in the truck bed and costs $16,000.Tesla is again revising the specifications of a previously announced product and delaying its launch.The listing for the Cybertruck range extender, an optional add-on that boosts the distance the electric vehicle can drive before requiring a recharge, was recently updated on Tesla's website for the dual-motor model.The estimated range from the optional upgrade is now lower by about 25 miles.