Here's my two cents...I routinely MB with a Wista DXIII. I carry the camera, a couple of lenses and other essentials in a Lowepro backpack without issues. The tripod and film on my seat post mounted rack (full suspension bike). It would be nice to have some panniers to keep a lower center of gravity but it doesn't hamper me since I'm used to it. Be prepared for a much slower go than you would without the extra weight!