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 work on Avid shorty 4 (rear)?
Document: I paid $6.86 (weird pricing) for these to replace worn pads on my Avid Shorty cantilever brakes. I've seen replacement 20R pads sold for those brakes, but I don't see how you can replace just the pads. I think you really do need this set.The gear was Avid made and high quality. There's an 'R' on each pad -- not sure what that means as I don't think it's rear or right! The Avid print on the side does tell you which way up.There were no directions, so hope you have your old directions or simply pay attention to your existing pads.
Pads failed on the beach cruiser back wheel. So, went to Wally-World & bought some Bell &#34;universal&#34; brand pads. These Bell universal pads squeeled so bad it was ridiculous. They were horrible. Took them off & put these Avid pads on. No more squeeling. Good reliable stopping power. Only reason 4 stars is I expected a set of (4) pads. Only (2) pads came in this set. So, they're kind of expensive.
I took a photo of my setup so if things fell apart I'd know how to assemble them -- spacer configuration will vary depending on your rims.Replacement took about 10-15 minutes and it's pretty easy as long as you don't drop any pieces. Fortunately between old and new you have some backup.I recommend buying more than one replacement set. My Avid brakes are probably 5-7 years old; who knows if they'll be sold in 5 years. If you buy 3 pairs now, given that front brakes last twice as long as rear brakes (mine anyway), you'll have enough for many years of riding.
These are a direct replacement for an Avid 20R brake set that has been on the bike for over 6,000 miles of substantial roller coaster riding. Unless the company has changed the material in these new ones I expect them to last for a least as long as before.
What can I say they work.
this was exactly what i needed at a fair price; great value!! work solid and easy install, would do it again.
super easy to install. cheap. vastly superior to the original brakes. they just work. dry, wet, you name it. that's it.
These where used for replacing the front pads on my TREK 7300. They are slightly larger than the OEM pads and once adjusted, work perfectly.
they did work better than stock pads on the diamond back 20&#34; bmx bike....i was expecting better...maybe its the rims
Replacing original pads on an occasional-use bike. Didn't want to spend a lot. These fit, were easy to install, and work great.
Answer: yes