Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Is this strip long enough to cover the 8mm extra length of a 27 inch tire? I want to put these on some 27 X 1" 3/8" Cross tires.
Document: I live in New Mexico and we have some nasty thorns on our trails. So far the Tuffy's alone have kept me from constantly repairing inner-tubes. I highly recommend.UPDATE (May 28, 2009): 40+ Hours of trail time and not a single flat. I have also put these in my wife's tires too. Great investment for those who are willing to sacrifice a little bit of extra weight for more ride time and overall enjoyment.
Not only has my good luck run out, but I've had a lot of flat tires in the past 2 months. These liners are therefore not helping at all.Regrettably the good luck ran out, so I'm downgrading to 3 stars. Yesterday I got 2 flats (and I only carry 1 spare innertube, ugh).I'd been using Slime liners for years. Maybe mine got old; I am not sure. This past summer and early fall I had more flats, mostly from goathead thorns than ever.
I like the extra protection these tire protectors give my bike. It gives me much peace of mind while riding.Sincerely,Ira Carmel.PS no flats yet.
Ugh. I went looking and honestly didn't find many options or any panacea. I decided to purchase a set of these and so far after about 6 weeks and a dozen or more rides I still have air in my tires  :-)
I no longer fear the goat thorn. Those pesky weeds cost me many a flat tire, but Mr. Tuffy spits 'em right out. I was averaging one or two flats a week, but since installing these liners about 6 months ago I'm flat-free. They paid for themselves. As a side note, I did experience a little bumping as I peddled down the road, presumably from the spot where one end of the liner overlapped with the other end, forming a small ridge.
Put these on my Son's bike and haven't had a flat on the road contact area yet.The only flat has been on the inside because one of the spoke edges was too sharp and it got through the rim tape to cause a problem.
These liners are well made. Easy to install and gives great piece of mind.I installed a pair of these liners on my Izip EZgo electric bicycle. Although my inner tubes are filled with an anti-flat gel material, I decided to add additional protection.4 months running over shards of glass, barbed wire and other sharp materials, my inner tubes have not been punctured.The tires on my bike are Cheng Shin C97 Street Wire Bead WSW. Great traction with this newer added protection.
Check your local retailers for better product. This one is borderline OK. A few thorn penetrate my tire with these installed
If you experience this problem I recommend just ignoring it until it goes away.
Appear to be made of very strong, tuff material.Easy to install and the fit was very good. Still waitingfor a puncture to evaluate furture.
Answer: no