The BMW GS OS-Base Combo 12 delivers a compact rackless luggage system designed to fit BMW GS motorcycles equipped with a rear rack, from the classic R80GS through to the latest R1300GS models. This setup pairs the OS-Base harness with two OS-6 Adventure Packs, offering 12 liters of secure storage for tools, spares, and everyday riding essentials. The rackless harness installs quickly without the need for frames, brackets, or additional mounting hardware. 

Built for demanding adventure travel, the OS-Base uses heavy-duty Hypalon construction with reinforced stitching at key stress points. Aircraft-grade alloy hooks and high-grip buckle adjusters keep the system secure across rough terrain. The OS-6 Adventure Packs feature roll-top closures and removable waterproof liners that help keep gear protected from rain, dust, and mud.