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

Input:
Question: Will this fit a standard mountain bike style handlebar? Thank you!
Document: Great with a 29er Mountain bike. It lets me give my hands a break on the long bike ride. Worth the money. Easy to set up.
Great for riding in higher winds. Cuts wind resistance and makes for faster riding. Took a little modifications to fit my MT bike bars. Will probably add them to my road bike.
I was looking for a simple and cost effective set of Aerobars for my bike and these fit the bill. Now when I go on rides I can relieve the pressure on my wrists and arms and lean down for long distance pavement riding while still being able to take to the trails. I did notice in some of the other reviews that they would begin to slip when riding. My fix to this problem was to use gaffing tape on my stock handle bar and then attach the aerobar. So far, so good.
It is nice and the price good. But no Pacific's  on which bikes it will fit. It is not universal. The barrings do not fit so now I have to shop for barrings that will fit and that is frustrating.
I got these bars way quicker than i expected, very impressed with the delivery time...but here is the issue, i had to modify/change the tri bar's clap to fit my handle bar not that difficult but know what u doing...i had to use a 1'' slit ring hanger, drill the tri bar hole bigger with a 3/8th concrete drill bit to accommodate a 3/8th hex screw and a slit lock washer
The Triathlon Aero Tri Bars Time Trial TT Handlebar came on in and after installing them I noticed they were warped. One side in the front was higher than the other. Tried re-positioning and then bending to get it straight all to no avail. Ended up getting a trekking bar so I tossed these in the trash.
this works great.. it fits my bike perfectly. has made my 40 plus mile rides very comfortable. would recommend this item
The bars are warped, and since they're metal there's nothing you can do about it. It doesn't make them unusable, but it is noticeable, especially from the front of the bike. Also, they don't remain fixed firmly to the bike for long, they need to be re tightened every 3 or 4 rides.
I got these to put on my Specialized Sirrus bike so I can go longer distances without my wrists and hands hurting; I am still getting used to them but they seem to work quite well. The only thing I would change if I could would be that I wouldn't mind the arm rests being a little farther apart, but for the price they are a great value and I can't complain.
We are very happy with these bars. My son broke his wrist, so he has to train on a computrainer and these are perfect for him to use. They take the weight off of him holding onto the bars.
Answer: yes