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: What's difference between 650x18-25cc and 650x20-25cc?
Document: Honestly, the removable valve core is the only real immediate difference for the continental tubes. That way you can apply Stan's or some similar liquid slime that will help to prevent flats.Great stuff.
I ordered the Continental 60mm Presta Valve Tube, 700x18-25cc but instead received Conti tube Race 28, 700x20-25c. The size may still work, but I'm not familiar with this tube. I am disappointed since I needed this as a spare for this weekend's ride.
What's there to say, it's a bicycle tire tube. One of those things that either works or it doesn't. AND IT DOES! Actually, let's say it gets five stars simply because a 650 tube with a longer stem isn't so easy to find. Yea, let's go with that. So this is a 650cc tube with a variety of choices for stem lengths and a presta valve. Replaced the old tube easily, inflated at the first go, and is still inflated. Done.
the inner tube is what it's supposed to be, a inner tube. When you take care when installing (checking the inner part of the outer tire before installing), this tire will not disappoint you. Did several hundreds on them, no issues.
just like the other review said 1. made in CHINA, not Germany. 2. I purchased 3 of them, one of them popped after I install it and inflate it with air. Would not recommend this at all.
i went out riding with this bike for the second time in the city and the streets are your regular urban streets. Although I didn't even run over anything sharp or potentially hazardous, by the end of my ride home the tube had deflated. You get what you pay for, I guess. I am sure some people have had better experiences but unfortunately this product did not hold up for me.
good tubes no pin holes.
continental makes the best hand made tires and tubes by far.far superior quality .find they last longer , on average 1500 miles compared to 1000 on normal tubes an'.tires.
What more could you really ask of a tube? They seem to be of higher quality than the Sunlite tubes I've ordered in the past.EDIT: I've been using these for about three weeks and my biggest complaint is that that caps on both the front and back have stripped out. I have to twist them very gently or they just spin and spin. We'll see how long till I lose one.
What can you say about a tube other than they do the job well.I choose these because I run 145 lbs PSI in my tires and some other tubes get holes where the stem comes through the rim.
Answer: yes