The R1100RT's tall, swept-back handlebars intrude pretty heavily on the tank bag area at full steering lock. Mak has addressed this issue by creating a special "Explorer" line of bags that is designed to provide the maximum amount of storage without interfering with parking-lot maneuvering. Big Mak AirBag kits include the Tank Rack for your model of bike, and one of the AirBags. The features and prices are listed with each bag below

Big Mak airBAG choices for the BMW R1100/1150/1200RT:

Big Mak Explorer XL airBAG with Tank Rack 7" tall front, 9" tall rear, 6-1/4" wide for front 4" flaring to to 9-1/2" wide at rear, 12-1/2" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-EXL @ $144.95	$214.90
Big Mak Explorer SC airBAG with Tank Rack 5-1/2" tall front, 8" tall rear, 6-1/4" wide for front 4" flaring to to 9-1/2" wide at rear, 12-1/2" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-EXC @ $134.95	$204.90
Big Mak Explorer TC airBAG with Tank Rack 4-3/4" tall front, 7-1/4" tall rear, 6-1/4" wide for front 4" flaring to to 9-1/2" wide at rear, 12-1/2" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-EXT @ $129.95	$199.90
Big Mak Explorer SS airBAG with Tank Rack 4-3/4" tall, 6-1/4" wide for front 4" flaring to to 9-1/2" wide at rear, 12" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-EXS @ $119.95	$189.90
Big Mak Explorer JR airBAG with Tank Rack 3.25" tall, 6.25" wide at front flaring to 9.5" wide at rear, 12" long Rack #BMA-3-BW5 @ $69.95, Bag #BMA-1-EXJ @ $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 Explorer series of bags: