The Big Mak "Stealth" airBAGS work great on the RS or GT, using a special rack that moves the bag as far forward as possible (to facilitate leaning forward while riding) while not blocking instrumentation. The Stealth is available in four different sizes. All Stealths are 8" wide at the front and 10" wide at the rear, with varying heights as shown below. They have mesh pockets on each side (great for earplugs or a small garage door opener), two interior pockets, and a power feed-through port on the bottom.

Big Mak airBAG choices for the BMW R1100/1150RS:

Big Mak Stealth XL airBAG with Tank Rack 7" tall front, 9" tall rear, 8" wide at front flaring to 10" wide at rear, 13" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-STL @ $144.95	$214.90
Big Mak Stealth SC airBAG with Tank Rack 5-1/2" tall front, 8" tall rear, 8" wide at front flaring to 10" wide at rear, 13" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-STC @ $139.95	$209.90
Big Mak Stealth TC airBAG with Tank Rack 4-3/4" tall front, 7-1/4" tall rear, 8" wide at front flaring to 10" wide at rear, 13" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-STT @ $134.95	$204.90
Big Mak Stealth SS airBAG with Tank Rack 4-3/4" tall, 8" wide at front flaring to 10" wide at rear, 12-1/2" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-STS @ $124.95	$194.90
Big Mak Stealth JR airBAG with Tank Rack 3.25" tall, 8" wide at front flaring to 10" wide at rear, 12.5" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-STJ @ $109.95	$179.90
Big Mak Essex airBAG with Tank Rack 4" tall, 11.5" long, 8" wide at the front tapering to a maximum 10" wide. The Essex is Big Mak's "Budget" model, with fewer organizational and expansion features but is still rugged and convenient for most bikes. Includes rain cover. Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-ESX @ $99.95	$169.90
Big Mak Diamond Tank Case with Tank Rack Diamond Tank Case can be used on the rack by itself as a bag, or can be fastened to the top of other airBAGs as an auxiliary case. It has a large 2-panel map pocket on top, and 3" of space below for other gear. 3" tall, 9" wide, 12" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-4-DTM @ $89.95	$159.90
Big Mak GTO Budget AirBag with Tank Rack 4" tall, 11.5" long, 6" wide. The Goat budget bag is a perfect way to get a "feel" for how the AirBag system works, and to use as a "city" bag to switch out with a larger AirBag when you're traveling. The GTO doesn't have the mesh side pockets or interior Velcro dividers, but it does have an integrated map pocket on the lid. The zipper isn't covered by a flap like on the other AirBag models, but a rain cover is included so weather won't be a problem. Not compatible with most of the AirBag accessories (map cases, pockets, etc.) - this is a stand-alone bag. Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-GTO @ $79.95	$149.90

Compatible accessories for the Stealth series of bags: