Originally Posted by
zeppinger
You might get more useful answers if you told us where you are planning to tour and for how long. Depending on the route and length of the trip I personally would consider just going with rear panniers only rather than go way overboard on the bulk and weight. For up to 2 weeks of touring I can usually get by on 45-50 liters of total space, including the handle bar bag, and be just fine and dandy.
I am curious... What do you carry on a longer tour that you don't carry on a 2-3 week one? I use the same packing list for either with the assumption that if I can do without something for two weeks I don't need it on a longer trip either. If anything on a longer trip I pack more carefully and am more likely to mail stuff to and from home as conditions change to avoid carrying too much. For example if I leave the mountains I might mail my colder weather clothing home.
To the original question... It sounds OK to me, but yeah it is probably more capacity than you need if you pack similarly to what I do. Total pannier space of a bit over 3000 cubic inches has been adequate for me for tours of whatever length (mine have been between 10 and 73 days so far). I usually have the tent on top of the rear rack and some empty space in the panniers.