CHANGCHENG motorcycle tail bag seat bag waterproof luggage bag-Dual Use Motorcycle Backpack Luggage Bags Hard Shell Motorbike Helmet Bag Storage Bags tail pack motorbike-Black

I use this on a 2021 Zero FX, essentially a medium sized dirt bike (450, 300, etc..). I was looking for something that didn't look crazy big on the rear fender of the bike but still had useable storage capacity. The soft sides allow it to expand vertically several inches and it will hold a full face helmet without a problem. When its empty or only has small items the soft sides collapse down and give it a much more compact profile. The bag has a bit of a wedge shape which matches the profile of the rear fender much better than a square or rectangular bag, which, combined with the lower collapsed profile looks great and matches the look of the MC. I ordered this bag as well as this Kemimoto 30L Expandable bag (https://www.amazon.com/dp/B085997KQJ?psc=1&ref=ppx_yo2ov_dt_b_product_details) at the same time to compare. The Kemimoto is a slightly larger capacity bag which would be useful, but the boxy cube look does not compliment the rear fender of my narrower motorcycle. The bungee string on the top of the bag has turned out to be more useful than I thought it would be. There is a velcro panel on the top that opens easily to reveal a great pocket for quickly storing gloves or other small items. I custom mounted this bag to the rear rack already on my MC. I cut some thin aluminum sheet metal to match the rack deck, placed the aluminum piece inside, on the floor of the bag, and bolted through the aluminum, through the bag, and onto the rack so this bag is hard mounted per se. So I don't worry about leaving it in a public parking lot. But I wouldn't leave anything of great value inside as there is no way to really lock the bag. I also don't ever remove the bag so the supplied shoulder straps allowing it to be used as a backpack will never be used, but its an interesting idea. I don't know how this bag would work mounted to the MC with the supplied straps, I don't think I would care for that to much on my particular bike.

Good quality. Appears sturdy and functional. The capacity is capable of holding an extra helmet. I have not used this overtime yet, the jury is out on deliberations on its durability.

This bag has been mounted on my Ninja 400 for about a week now and so far it’s doing the job. I got it so I could lose the backpack on my long commute, which I find it much more comfortable to ride without a heavy backpack on! We will see how it holds up over time but I’m happy with it so far. It *does* hold my size XL full face LS2 helmet (2nd) pic although it is a pretty snug fit and takes a little persuasion to get it completely zipped but can be done. For occasional helmet storage it’s probably fine but if you’re wanting to use it for helmet storage daily I’d suggest looking for something bigger. Overall solid product for the money!

Using it for only a second time (this time out of the 30 day return window), one of the clips that strap it to the bike broke. My entire contents emptied on the road including a $250 pair of sunglasses. It was not how I mounted the bag; one of the clips failed - not user error.

I was very pleased for the price point. When I commute on my ADV bike I pull the panniers off and use this little tail bag. It has plenty of room for a lunch and a few personal items. I got caught in a little weather on one ride and it did well, everything stayed dry inside.

I like that it doesn't have stupid logos all over it and the size is pretty good. I also like the criss-cross elastic stuff on the top of the bag to quickly store whatever. I dislike the overall floppiness of the bag, especially the bottom of it. The problem was, until I cut out a thin piece of fiber board to slide into the pocket they perhaps thoughtfully included at the bottom... it was too floppy to cinch tightly onto the bike without deforming so badly it would be difficult to zip. Also dislike the quick access pocket on the top of the bag since unless you shove whatever it is way up inside the bag, it is prone to immediately falling out when you open the velcro hatch that keeps it shut.

Exactly what I was looking for, nice looking and good quality. Plenty of storage space. I ended up using tie wraps to secure it to the rack but the Straps that come with would work fine also. Great product for the price

Zipper broke the first weekend I used this, but with the double-zipper closure, it just made it a single closure, still usable. Attaches with no problem, was able to fit a weekend's worth of underclothes and toiletries.