Yeah, the Super Tourist DX + Disc is what I have on my Soho S

Yeah it's no biggy really. For the price I'd love to grab some backrollers or something comparable, but right now I don't have much of a need for them. Eventually I'd love to do some touring, but that's a wayyys down the road.

I'm not so sure about the new ones but my 2 year old Topeak MTX expandable trunk does fit on other racks. It has these handy little velcro straps built into the corners for in-case you need to use it on a non Topeak rack. Of course this means it won't just slide on and click into place, you gotta fidgit with it for a bit, but it works. I suppose they would also be good for stabilizing the bag to the Topeak rack for when I'm taking the mtn bike trail home in the summertime. But I never remember to do that and in 2 years of commuting with this bag the slider and clip hasn't failed me yet. Good stuff.

i have both the largest of those topeak expandable bags (for groceries and bike n hikes) and the smallest one (for daily commuting.

i've had both for a couple of years now. i bought the larger one first and used it for day to day commuting (rain and snow and mud) before deciding it was overkill for most days and buying the smaller one.

both of them have been through the wringer, and been beat to hell but both are mechanically brand new. theyre dirty as hell, but no frayed fabric or busted zippers or worn our edges, and the springs and latch on the rack attachment are in perfect shape.

https://luttet.net/pics/bike_commute_pics_004.jpg

highly recommended.

as a side note - i'm fond of telling people that i once got an entire thanksgiving dinner for 8 including a turkey and sack of potatos into the big topeak bag one year.

I have the Topeak with the little panniers that drop out and I like it for small trips with the family or small grocery runs. I have some Detours grocery style panniers for bigger grocery getting jaunts. I just installed a lowrider rack on front and put some transit pro's and now I can handle any load.

How much can you fit in those? They seem like a good idea but they're listed at 790 cu in. And that doesn't seem very big for the pair. They sure do look cool though.

The newer ones have eliminated the Velcro straps. When I looked last night Amazon had both old and new versions of the large expandable DXP trunk bag available as well as old and new versions of the trunk bag EX. The older versions have the velcro straps pictured. In the descriptions both of the velcro strap including models are listed as 2008 models.

They aren't all that big. They're not really made for touring like other panniers.

However, for just day commuting they are perfect for my needs. I use the top Trans-It trunk bag for my lunch, and the Nashbar pannier bags on the sides for extra food, and bike clothing for changing weather (rain shell, etc). Even a pair of shoes, if needed. If you don't wear fancy clothes to work, you could easily stow a pair of blue jeans, a shirt, socks and shoes if you want.

Thanks!

I kind of like the idea of a rack trunk bag, I have a Nashbar one, but I never use it. The reason is that I can't figure out how to properly attach a light. I've never gotten either a SuperFlash or my current Dinotte to mount well behind them. I've been thinking about putting a bar of PVC pipe on the back of the rack to mount lights and still use a rack trunk. What do others do? The fabric loop on the back of the rack trunk is bollocks; the light just points any old way and is useless.

I bought a pair of Nashbar ATB panniers for $24 I think, about 4 years ago. Still going strong. They do let some water and mud in through the seams on wet days though, so I'm still vaguely interested in using the rack trunk to at least keep my cargo out of the tire splash zone.

What make of rack do you have? Superflash makes an adapter that fits the reflector/light mount on current Topeak racks and my Civia Hyland rack. I had to make up an adapter to mount the Superflash on a Blackburn Mountain rack however. The Superflash adapter plate fits either a 2 vertically oriented hole mount or a 50mm separation two horizontal holes light/reflector mounting point on the back of many racks.