The Vincita Big Nash trunk bag {Mfr. link} arrived this weekend, and now it's fully outfitted for utility:

ZiZZO Shopping Bag on the front and Vincita Big Nash on the rear rack.

The KLICKfix mount is pretty cool. It has tabs that grab the inside of the outer ring of a rack. They adjust out and screw down to keep it firmly in place. Then, there are side latches that snap down over the outside edges of the rack to hold it in place. It's quick and easy once adjusted, but not quick to move to other bikes unless they use the same rack. Compare this to something like the Topeak MTX, which can work on any bike with an MTX mount that can be retrofitted to existing racks.

The fabric is very thick & sturdy; if there's any disadvantages of this bag, they're the cost ($139) and weight. (2.1 kg = 4.6 lbs.) The loop on the rear for a light has the usual problem where when I clip a light to it, it sags down a bit, so that the light is angled down at maybe 20° instead of being level. Might be time to order another Planet Bike Grateful Red tail light for the rack mount, as the seat post is almost completely blocked by the bag. The inside fabric is a light gray; easy to find stuff inside. There are three inside pockets with elastic bands at the top. Two on one side, and one on one end. The end compartment is big enough for the detachable shoulder strap and has room left. The side ones would be good for things like wallets.

For carrying, it has two hand straps, which can be fastened together with a velcro cuff on one of them. It also has sturdy plastic rings for the included shoulder strap. The shoulder strap is sturdy, but it has a single buckle length adjustment, which means that sometimes, it leaves the buckle right in the middle, where it will dig into one's shoulder or neck. I'd like to see dual buckles in the future, so the part of the strap that goes across the shoulder is always smooth. There are flats molded into the shoulder strap rings, so the buckles have to be turned 90° to get them out; the rings are too thick otherwise.

The latches that lock the bag onto the rack come in two sizes. A large size for larger diameter rack tubes and a smaller size. Large were pre-installed; I had to take it apart and put the small ones on. That was a quick job, but required taking the hardware off the bottom of the bag. The included instructions are the European type, where they avoid words as much as possible and use lots of images. They can be figured out by a person who is technically minded and/or has a bit of patience to look and see how things work.

I haven't tried the fold-down panniers yet. Putting my foot on a pedal at the back of its stroke in the garage, it looks like my size 10 (US) foot would be close to striking them, but I guess on the odd times I have the panniers folded out, I wouldn't mind moving my feet forward so the arch of the foot is centered over the pedal. To keep them down in place, they have velcro straps to lash to the rack. They don't require a rack with extra rear support; any standard rack will do.

From what I've seen on YouTube, the Brits would call this a bikepacking setup. I don't know if I'm ever going to do any bikepacking, but maybe some picnicking!

I rode it into work with only the Big Nash; didn't need the front bag today. The Big Nash is a bit more aero despite being bigger, as it's turned length-wise, instead of cross ways like the front bags are.

This morning's payload in the Big Nash: thick fleece sweatshirt, left-overs for lunch, a pint of strawberries, an apple, a 24 oz. thermos a portable CD player from the 90s, a pouch with earbuds and a pair of gloves. That about filled the main compartment.