ROCKBROS Bike Trunk Bag 17L-45L Bike Rear Rack Bag Waterproof

i commute on bike. this bag strikes a good balance between having a main pocket big enough to hold my usual gear, and being small enough to throw over my shoulder and bring inside with me. the saddlebags are perfectly good for bringing home takeout or whatever i forgot to get during my last big grocery run. i like how the rain cover is high-visibility yellow, great safety detail and i throw it on for nighttime visibility too. bag feels like its solid enough to take a fall (although ideally i won't find out!). overall pleased. EDIT: its 2025 now. i bought this and wrote the above in 2023. its still holding up just fine. no issues with stitching or zippers, and it stays on securely. the yellow rain cover is a little faded from sun, because i use it for visibility no matter the weather, but its still pretty bright and the reflective strips still work. id still recommend this bag! (and yes, it can take a little fall and be ok.)

I love this bag. I put a MIK adapter on it and it fits great on my MIK carrier. I love that it has built in panniers so I can carry more stuff if needed. The center part itself carries a lot of stuff and that's what I use most of the time but I have used the panniers a couple of times for longer rides. The panniers are fairly small so if you're going on a really long trip I'd recommend getting dedicated pannier bags instead but if you just want the versatility this bag offers I say don't hesitate. It's very well built and sturdy and also attractive. I also like having the extra water bottle holder on the back of it.

I’ve had this for about a year. I use it along with a backpack to transport groceries. The top of the bag can hold a gallon of milk and still has room for a few more smaller items. The expandable top has been useful. The panniers have held up well. Although I haven’t put anything really heavy in them, I’ve stuffed them full multiple times. The bag comes with a neon yellow rain cover which I’ve used not only in rain, but anytime I use the panniers since it helps me been seen by cars. The Velcro straps are wide for my rack which meant when I pulled them tight not much of the Velcro was engaged. I found that if I crisscrossed the straps to the opposite buckle rather than going straight across , this utilizes the most Velcro and makes it most secure. I have larger panniers for bigger grocery trips but the trunk bag is what I use most often. it’s easy to put on/off the bike, and it holds things like a bag of chips or box of cookies which would take up a large portion of my backpack

I wanted to love this bag. But returned it. The size is perfect. The construction is sturdy. The expandability is awesome. The top of the trunk expands up in the back and holds all my tools and biking gear with room to spare. The fold out panniers are big -- I can fit a 15" laptop in a sleeve as well as pants, shirt, a sweatshirt, and more. The water bottle cage is useful and secure. The webbing on top is useful for stashing my jacket mid-ride. The reflective trim is powerful. The price is perfect. However, I returned the bag because of the velcro attachments. The velcro works fine, but I have a wide rack and fenders with little room to maneuver under the rack. It would take me 20 minutes before and after each ride to attach and remove the velcro under the bag. Super frustrating. My bike rack has the Dutch-designed MIK clip-in system built-in. I replaced this bag with a MIK bag that I don't like nearly as much so that I could avoid wrestling with the Rockbros velcro bottom straps. Rockros: PLEASE COME OUT WITH A MIK ATTACHMENT VERSION OF THIS BAG. PLEASE !!! I would buy it today and pay an extra $ 100 for the convenience. Seriously.

a good jack of all trades bag. doesn't do anything incredibly well but has good storage, feels secure while riding, rain cover, water bottle holder (you have to be careful what kind of water bottle you use or it will fall out), and easy to carry around with the shoulder strap when the panniers are folded up.

This is a very well made bag. The stitches are solid and anchor points are double stitched. The zippers are not wimpy yet they are tight enough to keep most dust out. I havent used the rain jacket yet but it fits fine and will repel enough for any unexpected shower. The company was great to work with and really stand behind their product long after the sale. This is my second rear bag that I have purchased from them. This second purchase I selected one size larger it was maybe more than I need. That choice is on me and I got everything I asked for.

Well made, I’ve only used it as a bag, so no experience yet with the panniers, but I’m satisfied with it. It holds a lot just in the bag, and the drink holder is clutch for those fast food runs. All in all, would buy again.

Looks good, large padded, fits on the bracket well. Good quality. Has reflective on the bag.