ROCKBROS Bike Pannier Waterproof 27L Large Capacity Bike Bag Rear Rack Waterproof for Grocery Touring Cycling Black*1

Pros:1. Very good value - less expensive than many competitors2. Adjustable to fit a wide variety of racks3. Large - 27 liter (about 7 gallons) stated capacity3. Very sturdy4. Waterproof5. Available in black or highly visible yellow6. Lacing on the outside for easy access to hats, raincoat, or other light items of clothingCons:1. No secure outside pocket for keys, sunglasses, money2. Not available in orange, a popular highly visible accent color (but check out the offerings from Waterfly and Ibera, both available on Amazon).Notes: The clips are a perfect fit for the fat tubes of the RadRover Rear Rack. I like that the top clips can be adjusted by sliding forward or back and locking in place, and that the bottom clip can be rotated in any direction and is on a curved track giving it various options for fitting to your rack. The bags are large enough to fits a spare ebike battery in its carrying case and anything you want to stuff around it - extra clothes, snacks, etc. There is a long and flat zippered pocket on the inside which will fit a standard highway map (though who uses those anymore) but I would have preferred a secure compartment on the outside for easy access to sunglasses, a set of keys, cash, or a phone. The lacing on the outside will securely hold a hat or other article of clothing.Construction is patterned after dry bags like the ones that have kept my gear safe and dry on the Grand Canyon and other whitewater trips, and just as sturdy. It's made of heavy, plasticized material and a single roll-top closure secured by three straps with buckles. In fact, I would not worry about the contents should I be caught out in heavy rain. I do wish they'd made the closure roll away from the bike rather than towards, though, so that water would flow away from it, but that's a niggle - it still isn't going to get in. I'd be much more concerned about the electronics in my ebike.At this time I've ridden about two hundred miles with at least one bag snapped to the carrier of my fat-tire ebike. The snaps (both the pair along the top and the adjustable one half way down that attaches to the rack supports) seem quite secure but the bag did fall off once when I was jarred by a large hole in pavement I didn't see in enough time to avoid. In retrospect, I think I probably hadn't locked the top pair of clips, so I advise making sure they are both on and locked, something that, at least with the fat tube frame of the RadPower rack, requires pushing down on the clip after the bag is mounted in place. Nothing was damaged in the fall and the bag was unfazed.

I added these to my ebike to make it easier to go grocery shopping. They are big and sturdy and waterproof. I built a rack for them that includes a lower rod because the bags have an adjustable hook at the base that keeps the bag from swinging out. There's a handle on the top that if you lift it, the entire bag unclips which is perfect for me when I grocery shop, just pull and lift and go shopping, no need to bring extra shopping bags!

Muy buenas mochilas estrenándolas con compras y delivery. Nunca se moja nada adentro. Preparándome para un viaje de ciclismo por varios meses les dejo saber como me va y aguantan. Pero hasta ahora muy satisfecho.

I've had this for about two weeks now and I have no complaints. It is perfectly functional, seems to be reasonably well constructed. Handled rain as expected. I'm confident I made the right choice going with this $70 bag instead of something I could have bought from REI for 2, 3 or even 5 times more.

I've used these for commuting for a couple of months now, and they still are very much waterproof. The materials seem very sturdy and so far has held up well to abuse. I had bought another set of panniers and immediately return them because they were so cheaply made. I coughed up another $20 to get these and the difference was night and day. The build quality and functionality exceeded my expectations. Especially for the price.

This is a review of the "ROCKBROS Bike Pannier Waterproof 27L Large Capacity Bike Bag".Purchased these bags for a 200 mile bikepacking/touring trip.The first day we had some light rain and entire week had to ride through large puddles of standing water - but my gear stayed bone dry. I don't know if sustained heavy rain would have been different but the bags passed this particular test with flying colors.Mounting on an Ibera bike rack was simple - the clips slide and rotate so should be configurable for virtually any rack. The carrying handles are convenient, and the latching mechanism makes detaching from the bike at the end of the day very quick and easy. That same mechanism for attaching to the rack is just a little bit tedious because the little tab (see "tab" in second image above) that locks the latch in position (it slides to adjust to different size racks) would occasionally open and I'd have to rejigger in order to get the bag on the bike. This was my only complaint and is not a showstopper by any means (probably could be fixed by a small piece of gorilla tape).These seal like a dry bag so can easily expand and contract based on amount of gear you are carrying. A small zipper pocket on the inside for small items (I did not use). Also webbing on the outside is great for stashing items on the fly (rain jacket, food, etc).Finally rubber feet on the bottom should reduce wear and tear from sitting on the dirt.Overall fantastic product which I highly recommend. The industry standard seems to be Ortlieb bags which I used once for a 1 week road tour. Honestly these Rock Bros seemed just as good as those Ortliebs and a fraction of the price.I also got the Rock Bros top tube bag which I will review separately.I highly recommend both of these.

The bags themselves are bulletproof. The connections are a bit meh. I took them on a 100 mile bike packing trip in mid December. All of the rack clips snapped. In their defense, we were gravel riding through the mountains, and I had them loaded heavy. Would I buy again, no. Are they worth the money, sure. Just don't put them to heavy use, buy a better system. I will probably canabilize the bags, and use them for hiking.

I removed my rambow saddle bags and put this one bag on because I was able to install a gator grip on the other side to hold my crossbow. THe quality of the single bag is every bit as good as otherS that I've seen that sell for $27 more.