Originally Posted by
TrekJapan
keg-o,
The rack bag is a Topeak DXP bag (MTX) It does not click into the arclight rack but it has two velcros on the front and four around the sides and secures very firmly to the rack.
John
I've been using the Topeak DXP too, on my MU P24, more often lately. I use it to carry my DSLR camera and some clothes for work. I further secure it with two bungie cords that go over the two pannier pockets.