Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Anyone use a front light with this bag? If so what and is the Topeak Bar extender needed to do so? Thank you
Document: I love my bar bag. Holds my phone, camera, keys, snacks, extra headbands, bandaids, spare tire, and small yet needed repair items. Also the map holder on top is perfect. When I do the long organized rides I hardly see anyone with anything like this. Everything is easily accessible.
I researched and researched front end bags and selected the Topeak Handle Bar Bag. I am so happy with it. I mounted it lower on the Sunlite Gold Tex Front Rack and it rides perfectly. I was skeptical about a traditional handle bar mounted bag so I improvised and it worked out well. Plenty of valuable storage and small enough not to distract or get in the way. Love it!
I have used this bag before and now buying a 2nd one for my son. The compartments are perfectly sized for my needs such as a small DSLR camera, GPS, passport, tickets, snacks etc. The clear map pocket can be too small but it is understandable because it has to match the size of the bag. The top handle is very convenient and shoulder strap is secure when attached, unlike a popular German brand I have used wherin the shoulder straps keeps falling off. It's very dangerous if the fallen strap gets snagged / entangled in your spinning front wheel!Others had problems with the handle bar bracket being too loose but that is easy to remedy by cutting old inner tubes to use as padding or you can use electricians tape to make the handle bar thicker.
Just another great bag from Topeak, perfectly sized and organized to carry all those 'At Hand' Items you want while touring.It doesn't leave much room on the handlebar, so they provide the Fixer 8 attachment that allows for the computer/GPS. Still, you'll need to purchase the Bar Extender for your headlight to get up over the bag.I just wish Topeak would add a Key Keeper to their products. A simple clip as most other manufactures now provide.
Other bag mounts allow you to quickly remove the bag - not this one. It takes a bit of force to pull back on the button with one hand while you try to horse the bag out of the mount with the other hand. Extremely crude compared to the mechanism on my old REI bag.And one other nit that makes you wonder if the designers have ever used a bicycle: On the lower front of the bag is a small loop - the tag on the bag identifies this as a "mount for a tail light clip".
The rain cover actually works in the real world.I also got the &#34;handle bar extension&#34; that mounts on top of the fixerator mount to hold a light which the bag got in the way of. Highly recommend that add-on. Highly recommend this bag.
This a good bag except for the rain cover and a few other flaws. My bag is about 4-5 years old and from day one the rain cover would not shed water. (actually did not realize until warranty was up.). I use a light shower cap under the rain cover which keeps everything dry, but should not be necessary. I have used it daily over this time and the main zipper is just now beginning to show signs of failure. The volume is split between five compartments and two shallow mesh pockets on the sides of the bag.
This bag is surprisingly small. The internal frame and padding take up a lot of space, meaning there's a lot less room inside than you might think from looking at the bag. What's great is all the different places to put things -- front pocket, two side pockets (very small, but will hold a wallet, phone, extra cliff bar, etc. ), a thin pocket on top beneath the map case, and the main compartment, which includes a pocket for the rain cover and/or shoulder strap.
There are two small side pockets. One houses the cover and one houses the shoulder strap. One small/medium size front compartment. (houses emergency lights, granola bars when touring, extra tube, etc. The main compartment is where I keep items for ready access. I use small mesh bags to organize my gear. A  small bag for wallet, change, and keys. A larger mesh bag is used for a patch kit and common tools. (Less frequent tools are in a role under my seat.).
Very nice bag. Goes right on the handlebar. Easily detaches. But mounting it was difficult and tricky. Bought 2 of these. One of my bikes is a 29in bike Northrock. Didn't need to use the spacers the come included. The other bike is a 26in bike mongoose. The handle bar was to skinny for any of the spacers. Improvised and wrapped electrical tape to the handle bar first then use the thickest spacer to hold it securely.
Answer: yes