The PRO GS was developed specifically for steeply sloped fuel tanks such as that of the BMW R 1250 GS. The stable tank bag offers up to 20 liters of generous storage space. Equipped with the MOLLE system for holding the smartphone or tablet holder, the PRO GS is the perfect companion for long journeys. The PRO tank bags offer elegant and timeless design together with durable materials and sophisticated product features: Ballistic nylon material protects the luggage against shocks, wind and weather. The top made of laminated EVA material gives the bags a distinctive shape and, along with a MOLLE attachment, ensures a secure hold for smartphone and tablet holders. The factory-fitted upper ring guide rail allows for the tank bag to adapt to the shape of the tank and the ergonomic needs of the driver much more easily. Only the PRO tank bags offer this flexibility. Matching this, SW-MOTECH offers the patented PRO tank rings made of fiberglass-reinforced plastic. They are made to match the motorcycle model. The robust PRO tank ring with magnetic guide aid secures the PRO tank bags with a mechanical QUICK-LOCK snap lock. This allows the tank bags to be attached or removed with just one hand. Features Volume expansion by zipper from 16 to 20 liters 2 outer pockets The patented PRO tank ring gives PRO tank bags a secure hold Magnetic guide aid in the PRO tank ring for easy attachment Pre-assembled top ring guide rail for ergonomic adjustment of the tank bag Top and bottom of the tank bag made of laminated and dimensionally stable EVA plastic Made from durable, highly UV-resistant 1680D ballistic nylon with water resistant interior coating MOLLE attachment made of stable hypalon material on the top for smartphone and tablet holders Reflective details for better visibility Mesh compartments in the interior Weather protection with the supplied rain cover Robust carrying handle Cable feed-through on the front and rear Can be used with a cable lock or anti-theft protection Included in delivery 1 x PRO GS Tank bag 1 x PRO top ring 1 x PRO GS rain cover Mounting instructions Mounting material Details Material: 1680D Ballistic Nylon Color: black / grey Size: 42.0 x 34.0 x 30.0 cm / 16.5 x 13.4 x 11.8 in Total Weight: 1.5 kg / 3.4 lb Total Volume: 16.0-20.0 l Note Ensure that there is sufficient space between the tank bag and the surface of the tank (also when fully loaded) to avoid damage to the paintwork. If there isn t enough room between the two, the surface of the tank can also be protected by a protective film or a tank pad. The matching PRO tank ring is required for mounting on the tank. Tank bags from the PRO series cannot be combined with EVO tank rings. Assembly instructions