Kriega OS BASE Adventure Bike

Kriega says:

The OS-BASE is a heavy-duty, rackless luggage harness designed to fit the vast majority of adventure bikes, old or new, including those with passenger grab handles and rear racks.
Rackless means just that: this lightweight harness is all you need to securely mount Kriega OS-ADVENTURE PACKS to your motorcycle. No extra hardware, frames or brackets are needed. The OS-BASE is easy to fit in minutes and guaranteed to last for years. This rugged luggage system can grow with you and be tailored to your adventures. Invest in the OS-BASE for your current adventure bike, but keep it to use on the next one, and the one after that.

PACK OPTIONS
Suggestions for fitting OS-ADVENTURE PACKS
DAY RIDES 2 x OS-6 to carry 12 litres of tools and spares to take on every ride.
SHORT TRIPS 2 x OS-12 for a total of 24 litres of weekend essentials.
LONGER ADVENTURES Fit up to 3 x OS-18 for the option of 54 litres of carrying capacity.

MODULAR DESIGN
Kriega 100% waterproof OS-ADVENTURE PACKS are supremely adaptable. Mix and match the sizes and fit two or three packs to this OS-BASE, depending on the carrying capacity you require. Use the SUBFRAME LOOPS included to mount a single OS-ADVENTURE PACK on the seat, without the OS-BASE, for the shortest trips.

BUYING OPTIONS
OS-BASE ADV ONLY
OS-BASE ADV COMBO 12 - OS-BASE ADV + (2 x OS-6 ADVENTURE PACKS)
OS-BASE ADV COMBO 24 - OS-BASE ADV + (2 x OS-12 ADVENTURE PACKS)
OS-BASE ADV COMBO 36 - OS-BASE ADV + (2 x OS-18 ADVENTURE PACKS)