Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: will this Derailleur work well with old 10 speed ( 5 cogs freewheel & 2 front chain rings ) the old sony bike
Document: The Shimano Tourney TX55 6/7 Speed Rear Derailleur is being used as a chain tensioner. The bike is a single speed but too wide to put a cassette of gears on rear. So I put a triple chain wheel on the front. This rear derailleur holds the chain with enough tension to work with the front 22/32/42 chain wheels on front.
Bought this as part of upgrade for an old 1980's Schwinn. Had some generic replacement derailleur on the bike that was barely functional, did not work as well as the original. This derailleur works great (better than the original), very precise and smooth shifting. Highly recommend - can't beat the price.
Needed to replace original derailleur on 1973 Peugeot 10-speed and it installed and fit perfectly. Bike shifts smoothly and runs quiet once again. :-)
The derailleur has so far worked well. It was not very difficult to install. Rather than separate the chain, I just removed the lower guide and slid the brackets apart so I could pass the chain through and then reinstalled the guide (the guides are the two star shaped wheels on the derailleur). I had to make sure that the cable was at the correct angle going into the derailleur, which required some manipulation of the cable and its sheath.
I purchased this to replace a Wally world derailleur on my son's bike. It was very easy to replace and has worked flawlessly since I changed it, and him being an 11 year old boy, he's hard on equipment. I would say this was a great value for the price!
This is a very nice upgrade to the standard Falcon derailleur that came with my Wallymart Bike.Shifting is much smoother and adjustment is much easier.looks much better as well.
So my son crashed his bike and bent the old Derailleur. This one was marked as being compatible and it was. Fit great and the install instructions were great too. As a kid I would tear apart my Schwinn Stingray every week with my buddies, but we never touched Derailleurs so I was a little scared to do this install. Now, I cant wait to do another.. but no crashes this time. :-)
This d&eacute;railleur shifts smoothly, a great improvement over the "clunk!" sound my old d&eacute;railleur used to make. It's made mostly out of aluminum (some plastic) and feels like it can handle the long miles I put on a bike. I live in South Florida where it's completely flat, but I think this derailleur could handle some serious mountain trails and stand up to the challenge.For $15 and free shipping this d&eacute;railleur cant be beat!
I got this and installed it on my touring road bike last night. It is large for a road bike, more intended for hybrid/mountain bikes but I like that it can accomodate larger gears for hauling equipment or a trailer full of toddler+groceries. I also needed a claw type mount, and getting this was easier than getting an adapter and a direct mount derailleur.The performance is night and day from my old Simplex derailleur. It is quieter, and shifts are both faster and smoother.
i finally install this Derailler on my bike last night i took it for a ride this morning work great now i need to replace the cable for the Derailler will buy again from this seller thank you
Answer: yes