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  1. #1
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    reinforcing tire against punctures

    hi, I've been to the bike shop today and inquired about that kevlar strip that is inserted between the tube and tire to reinforce it against punctures, well they didnt have that particular thing but they had some piece of hard rubber that suppose to do the same trick and then they went ahead and fixed it in the tire for me (for some added funds) , is it a common practice? since its just rubber and not kevlar is it going to give me any extra protection? cheers

  2. #2
    The Recumbent Quant cplager's Avatar
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    Quote Originally Posted by emman123 View Post
    hi, I've been to the bike shop today and inquired about that kevlar strip that is inserted between the tube and tire to reinforce it against punctures, well they didnt have that particular thing but they had some piece of hard rubber that suppose to do the same trick and then they went ahead and fixed it in the tire for me (for some added funds) , is it a common practice? since its just rubber and not kevlar is it going to give me any extra protection? cheers
    Tire liners are well known and have mixed results. You're almost certainly going to do better with a tire that has a extra flat protection (e.g., Marathon Plus) than a "regular" tire and an extra liner - both in terms of flat protection and rolling resistance.
    http://Charles.Plager.net
    http://RecumbentQuant.blogspot.com

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    Quote Originally Posted by cplager View Post
    Tire liners are well known and have mixed results. You're almost certainly going to do better with a tire that has a extra flat protection (e.g., Marathon Plus) than a "regular" tire and an extra liner - both in terms of flat protection and rolling resistance.
    I solved the dilemma by adding some extra liner to a marathon plus tour tire.

  4. #4
    Travelling hopefully chasm54's Avatar
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    Quote Originally Posted by erig007 View Post
    I solved the dilemma by adding some extra liner to a marathon plus tour tire.
    Really? Overkill, surely. M+ tyres almost never puncture anyway, and are stiff as hell.
    There have been many days when I haven't felt like riding, but there has never been a day when I was sorry I rode.

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    Quote Originally Posted by chasm54 View Post
    Really? Overkill, surely. M+ tyres almost never puncture anyway, and are stiff as hell.
    My whole bike is overkill and heavy as hell so a few more ounces doesn't matter much. Weight matter less to me than comfort and reliability. I'm not ridding to win a race but going from A to B without any trouble. My bike chain weight 17lbs, 2 rim tapes + 2 liners per wheel with the M+. One protection for the rim one for the tire. I have noticed at least 30% less rolling resistance since i changed my tires from the studded kenda klondike tires to the M+. I'm now flying because my legs was used to carrying this weight. And yes i was riding all year long with studded tires. I already had a flat with the kenda tires from a spoke going through a rim tape due to the heavy stuff i was carrying so i sandwiched a liner between 2 rim tapes and haven't had a flat since from the inside. I also got a flat with liners, the hole was exactly at the edge of the liner so i went for M+ tires
    Last edited by erig007; 04-23-13 at 12:24 PM.

  6. #6
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    Why would you ride with studded tires all year?

  7. #7
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    Quote Originally Posted by Leebo View Post
    Why would you ride with studded tires all year?
    I live in Canada half of the year is ice and snow, the kenda klondike tires have the advantage that i can ride with them on both icy roads and dry roads and are very good on wet roads as well. But those tires should be avoided when there are debris on the road because studs get in and puncture happens
    Last edited by erig007; 04-23-13 at 12:56 PM.

  8. #8
    Banned. Mr. Beanz's Avatar
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    Quote Originally Posted by emman123 View Post
    hi, I've been to the bike shop today and inquired about that kevlar strip that is inserted between the tube and tire to reinforce it against punctures, well they didnt have that particular thing but they had some piece of hard rubber that suppose to do the same trick and then they went ahead and fixed it in the tire for me (for some added funds) , is it a common practice? since its just rubber and not kevlar is it going to give me any extra protection? cheers
    Those rubber tire liners were on the market waaay before the kevlar strip liners.

    FYI, being a heavy rider at 220 lbs I tried the Mr Tuffy strips (rubber), they actually did more damage than good. The overlapping edge eventually saws its way through the inner tube and cause a flat. I tired placing tape over the junction, filing down, trimming and whatever else i could think of and eventually it cuts through the tube. I have a ride buddy far less in weight ( 150 lbs) that has no problem.

    I can't get more than 200 miles with a rubber type tuffy liner before it cuts my tube.

    My best advice is use good tires and avoid weight weenie tubes.

  9. #9
    coprolite fietsbob's Avatar
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    Marathon + tires ., thorn resistant HD tubes ..

  10. #10
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    Quote Originally Posted by Mr. Beanz View Post
    Those rubber tire liners were on the market waaay before the kevlar strip liners.

    FYI, being a heavy rider at 220 lbs I tried the Mr Tuffy strips (rubber), they actually did more damage than good. The overlapping edge eventually saws its way through the inner tube and cause a flat. I tired placing tape over the junction, filing down, trimming and whatever else i could think of and eventually it cuts through the tube. I have a ride buddy far less in weight ( 150 lbs) that has no problem.

    I can't get more than 200 miles with a rubber type tuffy liner before it cuts my tube.

    My best advice is use good tires and avoid weight weenie tubes.
    I don't believe it's the weight as i am slightly heavier and with all my stuff and gears can sometimes reach 300lbs bike weight included without taking into account my own weight and i haven't had this kind of puncture problem
    Last edited by erig007; 04-23-13 at 01:44 PM.

  11. #11
    Banned. Mr. Beanz's Avatar
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    Quote Originally Posted by erig007 View Post
    I don't believe it's the weight as i am slightly heavier and with all my stuff and gears can sometimes reach 300lbs bike weight included without taking into account my own weight and i haven't had this kind of puncture problem
    Maybe it's not the weight but a search on tuffy liners problems show I'm not the only one that had the problem.



    A review:

    Weaknesses: Consistently caused flats for me and my riding partner approx every 1000 miles. Solution was to place duct tape over the Mr Tuffy overlap

    A second review

    Bottom Line:
    Didn't provide any additional protection and may have even "cut" into the tube on two different times. Finally removed them from by tires.


    ===============================

    AND from the mr tuffy site itself

    Q I’ve read in some forums that Mr. Tuffy will wear a hole in my tube where it overlaps. Is that true?

    A We’ve read that as well, and there is some evidence that it’s possible. In the early days, Mr. Tuffy tire liners were trimmed by hand. Once the volume of sales was measured in millions rather than hundreds, we had a special precision cutting machine developed that uniformly trims the liners to the exact size and shape needed for maximum effectiveness. It is unlikely that the overlap causes flats using the current Mr. Tuffy product............. I myself tried Tuffys in 1997 with the liner cutting my tube on my tandem. Then I tried them again in 2005 on my single bike, with the same results.

    A Dealers have told us that they grind or file down Mr. Tuffy’s end edges and they apply talc to the inside of the tire before installation. This advice seems to make this particular problem disappear.
    Last edited by Mr. Beanz; 04-23-13 at 04:33 PM.

  12. #12
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    Another alternative is to use Slime Tube Sealant (aka "goop"). It gets great reviews on amazon, and my friend swears by it.

    http://amzn.to/14NFyYk

  13. #13
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    Slime tire liners consistently got bad reviews, but they've introduced a new and improved version. Anyone familiar with these?

  14. #14
    Senior Member Nermal's Avatar
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    Quote Originally Posted by erig007 View Post
    My bike chain weight 17lbs, 2 rim tapes + 2 liners per wheel with the M+.
    Surely, you don't have a chain that weighs 17lbs, unless you say chain meaning some sort of mega security device.
    Some people are like a Slinky ... not really good for anything, but you still can't help but smile when you shove them down the stairs.

  15. #15
    rebmeM roineS JanMM's Avatar
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    Quote Originally Posted by Nermal View Post
    Surely, you don't have a chain that weighs 17lbs, unless you say chain meaning some sort of mega security device.
    Any lead chains on the market?
    RANS V3 (steel), RANS V-Rex, RANS Screamer

  16. #16
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    Quote Originally Posted by Nermal View Post
    Surely, you don't have a chain that weighs 17lbs, unless you say chain meaning some sort of mega security device.
    My chain weight 14lb (20mm thick) and the padlock 3lbs = 17lbs

  17. #17
    rebmeM roineS JanMM's Avatar
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    Quote Originally Posted by erig007 View Post
    My chain weight 14lb (20mm thick) and the padlock 3lbs = 17lbs
    Ahh...........it's a security device and not a drivetrain component!
    RANS V3 (steel), RANS V-Rex, RANS Screamer

  18. #18
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    Quote Originally Posted by JanMM View Post
    Ahh...........it's a security device and not a drivetrain component!
    Haha i got it for sure not a drivetrain component
    Last edited by erig007; 04-23-13 at 09:04 PM.

  19. #19
    Senior Member Nermal's Avatar
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    20mm thick sounds pretty secure, alrighty.
    Some people are like a Slinky ... not really good for anything, but you still can't help but smile when you shove them down the stairs.

  20. #20
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    Quote Originally Posted by bagster View Post
    Slime tire liners consistently got bad reviews, but they've introduced a new and improved version. Anyone familiar with these?
    Not sure if this version is any different from the one you're thinking of: http://ow.ly/kmt8v It got 4 1/2 stars on amazon by 27 reviewers.

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