Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: I'm afraid the bag is going to tilt or fly off when taking sharp, speedy turns.  Has this happened to anyone?
Document: Just got this bag for my ride to work. Using a bacack was causing a lot of back pain. This bag did the trick. It has a lot of space and is easy to use.. It was not clear when I ordered the bag that you needed their rack system. I ended up ordering the rack, also. I'm just so happy to be able to ride my bike to work without back pain
Good pack. Like the fact that the bag snaps easily onto the rack. Decent amount of storage for commuter or an overnight bike ride.
Ibera Bicycle PakRak Mini Commuter Bag and Rack... in my opinion is well design product, with a nice potential to grow!Rack only is lightweight, smart lock design, aluminum made. Bag itself is also well build with the hard bottom...
I got the product quickly. It was a little heavier than I expected, and I haven't actually installed it yet, but I can tell it's really a quality product. The bag that comes along with it is quite nice and you can apparently detach it and use it as a carry bag. Nice!
The bag comes off and has a shoulder strap for carrying your &#34;valuables&#34; with you when you lock the bike up in the rack. Well thought out product and great price. I get a LOT of use out of this and really like it!! Also I have taken this on some moderate Mountain biking trials, and although it does bounce a little, it stays in place very well.
Pretty sturdy and well made. It seems like it will last quite a while. The bag is nice, even though it is a bit on the small side, but that is mainly because it is designed for small or folding bicycles It has a decent number of comparments and it detaches easily. It fits perfectly on my folding bicycle. It is pretty easy to install provided you have the basic tools.
This rack and bag are perfect for my routine bike rides with the kids..carries our snacks and jackets. The only con i've noticed is that makes a bit of a rattling noise as I ride. I haven't tried to use it for an entire day and it might be an issue then but it isn't much of a distraction during our 5-10 mile rides. Installation was super easy. Love this product!
This rack and bag system is AWESOME!! If you're here because you tried the cheaper Schwinn rear rack that just won't install correctly or screws becoming threaded, look no further. The installation was a breeze and it looks great. At first glance, the bag looks small but it has so many compartments and is pretty high so I was able to fit many things in there including a 32oz bottle, phone, keys, wallet, gloves and had room for more.
Nice design. Will be ordering an other for my bike. The size of this is good, but I will be ordering the commuter for my other bike as then there will be plenty of storage room for all we need when my wife and I take day bike trips. This bag would work well for me, but with 2 people, water, lunch and jackets then two bags are a must. I think that for a single biker, or a short distance commuter this Mini would be fine.
It was quick and easy to install. Not 100% tightly secured to the seat post. It will slide a bit if you push it even with the rubber insert provided. I love the easy use of snapping on the bag to the post. The only negative comment I have about it was one of the orange rings was missing on the back of the seat-post rack when I received it. I don't think it effects the use of rack but more of the esthetic of the rack.
Answer: no