Originally Posted by chaadster

The Scicon Compact 430 will do it and is a great bag, both for its easy access and loading clamshell design and convenient Roller Mount. It also has integrated tire lever mounts, so if you're packing those out now, you can ditch 'em.

I used to use one, and still have one of the smaller Elan roller mount bags in use now, and have a very good assessment of the bags. Good stuff.