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Do Kevlar tires *REALLY* protect against flats?

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Do Kevlar tires *REALLY* protect against flats?

Old 04-23-08, 08:11 AM
  #51  
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Originally Posted by matthew_deaner View Post
Umm.... Panaracer tourguards are kevlar belted tires. They use Arimid, the generic version of kevlar.
Correctomundo!
I didn't say I won't use kevlar tires.
If I pulled the tuffies out I would be dealing with flats again.
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Old 04-23-08, 08:30 AM
  #52  
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Gatorskins + Mr. Tuffy Liners + Thorn Resistant Tubes = FTW = Frickin' Boat Anchors

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Old 04-23-08, 08:32 AM
  #53  
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Originally Posted by paullydub View Post
OK, let me throw in my 2 cents.

After getting a ton of flats from staples on a regular basis (the last instance, the tire had like 8 staples stuck in it at once) I switched to Armadillos. The guy selling me said they worked great in the city - hadn't had a flat in 2 years. Not a gaurantee, but still.

I've had 2 flats in the past week from staples. And the Armadillos being a royal pain to get on and off this is even more of a nuisance than before.

So what the hell stops staples? Even a little?
Nothing is going to stop a staple. They are too sharp and narrow. I have found that Mr Tuffys will sometimes actually seal around the staple. I usually get stapled at night on the way home.
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Old 04-23-08, 09:50 AM
  #54  
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Originally Posted by paullydub View Post
So what the hell stops staples? Even a little?
The info (on the cardboard strips stapled to the tire) that came with my Marathon Plus (700x25) shows a cut-a-way diagram of the tire...according to it (and my own inspection of the tire) there is a significant added layer of material running up the middle of the tire (where it contacts the road). This added thick layer (which has a somewhat spongy feel) is in addition to the already thick material running from bead to bead (which gives great protection to the sidewalls)...so what I'm trying to say is that the tire is really thick up the middle. The info also shows a diagram of what appears to be a thumb-tack penetrating the tire (up the center) without reaching the tube. I assume this extra layer heavily accounts for the extra (aprox 200-300 gram) weight of this tire over a Gatorskin or an Armadillo. A Marathon Plus would probably put up a good fight against staples, but I assume if the staple is long enough and enters the tire the "right" way then a flat is still possible.

I have some tire liners (Mr. Tuffy) but haven't tried them yet (My plan was to use one with my relatively thin-skinned Michenlin Dyanamic on my front wheel, but I rarely get flats on the front wheel anyway, so I have procastinated). I've seen posts of love and hate for tire liners. It would seem that they could be very effective in this way (this is my mental picture/theory): I assume the weight of the bike/rider forces a sharp object into the the surface of the tire; once the sharp object pierces the inner surface of the tire (which would normally go on to pierce the tube and result in a flat) it meets the surface of the tire-liner (instead of the tube), instead of of piercing the tough tire-liner, the tire-liner "gives" (moves) under the pressure of the sharp object (having only the air pressure in the tube to push back against the sharp object)...I don't know if this is how they work exactly (I'm sure someone will tell me)...would a tire liner with sidewalls be a good idea (a pre-formed, round, tire-liner that fits into the tire like an extra thin-shelled tire)?

I've read on different forums about the lengths some go to to prevent flats. One poster actually cut the beads off of one tire and used that tire as a tire-liner (he had to experiment with different sizes and brands to get the right combinations (inside tire/outside tire), and some utilize every weapon together: Thick flat-resistant tires, with tire-liners, with thick tubes, with sealant in the tubes (and I just thought of that controversial air-free tire thread I read recently). I guess the soluton lies in the balance between hating flats and hating weight.

Last edited by mawtangent; 04-23-08 at 10:01 AM.
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Old 06-25-12, 06:27 PM
  #55  
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how long does a kevlar last?

Originally Posted by Psydotek View Post
Gatorskins + Mr. Tuffy Liners + Thorn Resistant Tubes = FTW = Frickin' Boat Anchors

great info on kevlars guys, I was just curious though...I got some bontrager race lites that i've had on my bike for about 8 years now as i got the bike from my dad 6 years ago who had them put on. I've been riding more in the last 2 summers averaging about 40 miles a week and my ride is starting to get a little bumpy....i've never had a flat in the rear tire yet, only the front. but I've worn the rear down to the threading.
so how long can you really ride on these things before you start to jeopardize your own safety?
thanks for the imput check the link for a visual
http://img689.imageshack.us/img689/3426/0625121808.jpg
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Old 06-25-12, 08:24 PM
  #56  
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If you have no rubber left on your tyre, you are risking loosing traction and sliding out, and the casing of the tyre will wear fast or get cut, split open and burst your tube.
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Old 06-25-12, 10:07 PM
  #57  
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Nice necro post
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Old 06-27-12, 11:33 AM
  #58  
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[QUOTE=bostontrevor;1564421]I have several personal favorites that never seem to get flats, Specialized Armadillo, Continental Gatorskins, and Vittoria Rubino Pros. The Conti's & Vittorias aren't available in 26", sorry.


Gatorskins available in 26 X 1.1
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Old 06-27-12, 12:59 PM
  #59  
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Why o why not simply start a new thread********** If you have worn the tire to the belts spend the $45 to replace. FWIW I had zero flats for the whole life of an Armadillo tire on my road bike, ~1600 miles new to spots of belt showing on mostly rough chipsel roads. Lots of cuts in the tire and not one made it through. Considering how much i'm saving by not putting gas in my Yukon tires are cheap.
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Old 06-27-12, 05:58 PM
  #60  
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Old 06-30-12, 12:24 AM
  #61  
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Significant reduction in flats when using Schwalbe Marathon Plus or Panasela Tourgoard as compared to cheap tires without Kevlar.

I prefer Panacela TG over Marathon Plus because they have a more comfortable ride, but probably less flat protection (I got flat from glass once on the Panacela but no flats on the Marathon Plus.)

Panacela has some other tires with Kevlar, want to try those too.
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Old 06-30-12, 08:31 AM
  #62  
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more to the point , small frequent punctures yes big 10p nails no.

Schwalbe marathon plus ,, a tuffy type polymer band under the tread,
so unlike the liner strip . there are no ends to wear a hole in the tube.
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Old 01-22-17, 08:44 PM
  #63  
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Flat tires.

I bought a set of decent tires 26x2.25, and then made my own tire liners out of some kenda inner tubes. They are 3/8" thick and since I have done this, no more flats. I was thinking about putting another liner per tire in just to make sure that nothing will penetrate, but not sure how this would effect tire performance. I have a motorized bicycle and removing the back tire can absolutely be a pain in the backside since it has another chain for the motor to worry about. I currently have over 3k miles on this bike though, and it starts when it is cold on first turn of the pedals. It is not a looker by any means, as I have had two real nice motorized bikes stolen.
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Old 01-22-17, 10:39 PM
  #64  
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Zombie thread returns.....
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Old 01-27-17, 06:51 PM
  #65  
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I got about a year out of my Marathon tires, then they got sliced through by something less than 1/2" - maybe glass. It went right through the protective strip. I upgraded to Marathon Plus to hopefully avoid that again, but they only lasted about a year before I got another piece of debris to cut right through the protective (thicker) strip. The last one left a hole big enough that the tube was starting to peak through (the hole was still small - smaller than a pencil eraser). Given I was going about a year for much cheaper tires, I find it hard to justify paying so much for these. $75-100 per year is a bit much for ~3000 miles of commuting per year. I am currently using Gatorskins - we'll see how they do.

It's not like I'm riding through piles of shatter glass here... :-(
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Old 01-27-17, 07:17 PM
  #66  
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I have no tires as old as this thread. Well, I do but they've rotted and are sitting in a pile waiting to be recycled.
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Old 01-27-17, 08:31 PM
  #67  
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This Zombie Thread needs to have a stake put through it!

The answer to the OP's timeless question is generally but not always yes.
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Old 01-27-17, 09:02 PM
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too much to read, aramid fiber (kevlar is a brand not a type) does protect but it isn't flat proof. i would say that kevlar protects more than 10% as one poster mentioned, i would venture a guess of closer to 60% better than standard cloth belts. but is it the best belt material? for weight yes for puncture resistance no, the best for puncture resistance is a high elastic special rubber used by schwalbe but they're heavier than aramid belted tires. so you have two decisions, do you want the best flat protection and sacrifice some speed due to the heavier tire, or do you want more speed and put up with more flats? unless you live in a rather thorny place you shouldnt have a need for heavy tires, i ride around on just regular aramid protected tires and rarely get flats
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Old 02-11-17, 04:18 PM
  #69  
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*in my best zombie impersonation voice* bikes.... biiikes... biiiiikkeesss

what, I remember when zombies still said brains.
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Old 02-20-17, 07:55 AM
  #70  
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Originally Posted by mystickid View Post
Hi, I am new here and I am in love with this place! Bike Utopia!

I own a 2000 Schwinn Mesa MTB. Over the years, i realized I hate the slow drag i get from kbobbies on my MTB, so i came across some thread here and I decided that I am going to get me some Ritchey Tom Slicks because I want to maximize my speed and rolling distance whilst not peddling. My main objective is to get my MTB as fast as Possible yet with some dependable durability to it. I basically ride on city streets/roads and sidewalks.

i came across some website that had the Ritchey Tom Slicks but made with kevlar. I wanna know, if kevlar tires really *DO* protect *siginificantly* against flats or is it all just marketing.

I have this doubt because the Schwinn shop owner where I purchased my MTB says I'll still get flats with kevlar and that kevlar only adds a little bit more protection, but flats are ineveitable even with kevlar.

I apologize for any incompetence in my post but I am really new to all this amazing stuff I am seeing here on the bike forums. Just trying to absorb.

Thanx for helping!!!!
I use Gatorskins and never get a flat until the tire is worn (after 3000 miles or so on the rear), which is my signal to replace it. The only downside is the tire is a bit slow.

Some people swear by Marathons. But they are even slower than the GS.
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Old 02-23-17, 01:53 PM
  #71  
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This is more than a zombie thread...it's like...like...like a zombie thread fully wrapped in kevlar. It simply refuses to die!
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Old 02-23-17, 02:53 PM
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lol....2005. Most of us probably were not even members yet.
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