USED Yakima OffGrid LG Extension Large. The OffGrid Large Extension adds an additional 22 inches of length or a 40percent increase in cargo capacity. Specifications for Yakima OffGrid Large Extension: Manufacturer: Yakima Condition: Used Weight: 17.6 lb Condition Quality: Good Condition Details: Inspect And Rebox Dimensions: 22 X 49 X 7 in Features of Yakima OffGrid Large Extension: Plug in 40percent more capacity into your OffGrid Large cargo basket New design has improved the process by taking less time to add more gear Installation of the extension is smooth and easy with included hardware Package Contents: Yakima OffGrid Large Extension Yakima 8007109: OffGrid LG Extension Large