I know you said no Topeak, but I LOVE my Topeak ... and I move it from bike to bike by moving the whole rack. I have a Topeak seat-post mounted rack which just clips on like the adjustment for your seat. Takes less than 1 minute to move the whole rack ... and it looks coool!



I have a Topeak RX Trunk Bag DXP Expandable bag which is fairly large has a zipper for expansion and (small) fold out side panniers ... enough for clothes and lunch (Shoes can sit on top in the webbing if needed) ... I'm not going to carry my laptop (the brick) on it, but its plenty big enough for the usual commute.




Of course ... if the financial controller doesnt want you spending too much on your bike ...