Product features of BMW Genuine F800GS F650GS Motorcycle Variable Cases Left 9P_PNEOJWA4:
This case has a capacity that can be adjusted simply moving a bar inside and can be reduced by up to 4.7 inches. The capacity is expandable from approximately 28 to 38 L / .99 to 1.34 cf on the right side and 19 to 29 L / .67 to 1.02 cf on the left.