One week is easily done with just back panniers by the way. If you pay attention to your camping kit, use backpacking equipment made for ultralight camping, and resist the urge to take the kitchen sink with you. Iīve done one week trips with 20 lbs, including food and water. You just plan carefully. For that matter, our brothers and sisters that do mountain bike camping do it with even less since they hate to carry panniers at all and usually have a few frame bags and one funny looking large bag sticking out from behind the saddle and maybe a small backpack only. The trick to a good handlig bike is to keep the center of gravity low. Load heavy items at the bottom of the bags and donīt put an anvil on top of the rack, etc :-)