Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: How do these "clip" on?
Document: The front fender is OK but the rear fender is not long enough to keep water off my back. Installation was easy. They clip on and off the bike quickly.
These clip on fenders work but they didn't attach well at all on my Trek road bike. I had to fiddle with the brakes a lot, and actually trim some of the plastic to get the brakes not to catch on the fenders. These are not good constrution and you'll likely have to mess with them a lot, but they do work and for the price its hard to argue too much.
They appear to be functional enough to keep the rain from flying up, but I haven't tried them in the rain yet. If you have a frame pump mounted next to your seat bar bottle holder, the clip on the front of the back fender will not fit without some force applied to jam it in next to the pump mount.
I bought these for my Schwinn Trailway Hybrid 700C because I wanted to stop splashback when going through water or puddles. I also wanted a more finished look on the bike instead of "raw wheels". The installation took about a half hour because it required finding the right clip position for my bike, but seems to fit and work well so far. I took two rides ride so far and they are deflecting the water and holding solid in their position that I installed them in so I am happy so far.
this product is just ok. It is difficult to install. The plastic is cheap and get out of shape quickly.The instruction are not sufficient. It doesn't fit well the larger frame I have.I also lost the front one a few time as the clipping method is very weak
i looked high and low for a pair to fit my road frame and fond these easy to put on and take off.
Works for me.
Used these on my 1989 Schwinn Voyageur with 27" wheels. I have a 27 x 1 1/4" on the front and a knobby 27" x 1 3/8" on the back (I was most concerned about the back.) Fenders worked well and held up for a 332 mile 5 day tour. I would not expect them to hold up if you plan to constantly take them on and off. They didn't make my bike look too bad either.
Two pieces of plastic with two pieces of metal. It sounds really simple, but they work like a charm. Super lightweight and they even look pretty good.
This is the second pair for me and I'm not sure why I bought the second pair despite the first not working as well in terms of keeping me from looking like a skunk on rainy days. I guess maybe I'm hesitant in getting a full size traditional fender that offers real protection in hopes that maybe on my second bike, the rear fender will be just ever slightly long enough to keep me from looking like a skunk but alas, it was a fool's gold errand. If you fail; try,try again?
Answer: yes