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Glass in tyre

joparijopari Posts: 84
edited April 2012 in Commuting general
So, question for you forumites:
I punctured the other day (the day after I swapped bags without transferring spare tube!) and when looking for the offending hole I easily spotted a small shard of glass in tyre.
I then went round and checked the rest of the tyre and it was littered with small cuts which hid small shards of glass.
Questions are:
1) Is this likely to be a build-up over a long time and I was just unlucky that this one punctured my gatorskins?
2) Do you often check for this sort of "puncture waiting to happen"?

G
Cannondale R800 - Dry
Kona Honky Tonk - Wet
'96 GT Outpost - Kids on back
Genesis Core 120 - Mud
Raleigh Pro Race - Shop

Posts

  • rolf_frolf_f Posts: 16,015
    Yes, the glass shards build up over time though mainly when it is wet. I regularly check the tyres and I find it therapeutic digging the glass out - I'm disappointed if I don't find any!

    Incidentally, some people will talk of replacing their tyres when the start to puncture a lot. This is what happens if you don't excavate the glass. The glass gets constantly pushed into the kevlar bead until eventually it goes through and punctures the tyre.

    If you clean the tyres out, this doesn't happen and your tyres last much longer - plus you don't go through the 'lots of punctures' stage (though, as you found, you still can have the odd puncture if you are unlucky).
    Faster than a tent.......
  • UnderscoreUnderscore Posts: 730
    Yes, I check reasonably frequently but Gatorskins do seem particularly prone to this type of puncture: both the punctures that I've had with mine were due to flint shards having never had a problem with the Spesh Armadillos that I previously ran. I'm about to replace one of my Gators so will be going with a Durano to see if they are more resistant to this failure mode...

    _
  • rolf_frolf_f Posts: 16,015
    Underscore wrote:
    Yes, I check reasonably frequently but Gatorskins do seem particularly prone to this type of puncture: both the punctures that I've had with mine were due to flint shards having never had a problem with the Spesh Armadillos that I previously ran. I'm about to replace one of my Gators so will be going with a Durano to see if they are more resistant to this failure mode...

    _

    No probs here with Durano and Durano S fwiw.
    Faster than a tent.......
  • chainoffchainoff Posts: 1
    Just had 4 puntures in a row untill I found the glass burried in the Gatorskin , you could't feel the glass if you ran your fingrs inside the tyre or on top of the tread . It took about 2 miles for the re-acuring punture occur. What a pain to find . Glass extraction will be on my list to do from now on.
  • oxomanoxoman Posts: 9,040
    Checked my Spesh Armidillos last week for the first time after 6 months use and was surprised the amount of glass, metal and sharp stone embedded in the surface of the tyre. I will now do it every 3 wks or so
    Too many bikes according to Mrs O.
  • corshamjimcorshamjim Posts: 234
    No problems here with Marathon Plus, Durano Plus or Panaracer RiBMo either, but found hawthorn had punctured Marathon Winter tyre this year and same thing happened to a tyre that came as stock on my Trek Pilot (Bontrager All Weather if I recall).
  • InitialisedInitialised Posts: 3,047
    Adds to list of weekly rituals.
    I used to just ride my bike to work but now I find myself going out looking for bigger and bigger hills.
  • SmirfSmirf Posts: 123
    Snap.... I'd never bothered checking my Gators as I hadn't had a puncture, but for some reason ended up looking at them and found a multitude of glass shards in there.

    Question... When you take them out, do you use anything to fill the gap such as a small dab of superglue?
    Parlee Altum - "summer"
    Felt VR5 - "winter"
    Trek Triton Singlespeed - "commuter"
  • UnderscoreUnderscore Posts: 730
    FWIW, I've never filled the holes left on mine and I don't seem to have suffered as a result - as far as I can tell...
  • rolf_frolf_f Posts: 16,015
    Underscore wrote:
    FWIW, I've never filled the holes left on mine and I don't seem to have suffered as a result - as far as I can tell...

    +1. I did fill one cut last year - that was about 5mm long and quite quite wide but I only tried to glue it once and the glue made little difference (aside from that there was now something hard and sharp in the split that I had put in the tyre (ie the glue)!! I finally binned the tyre a couple of weeks ago - by then the split was 2mm wide and I could see the inner tube starting to bulge through the casing! I'd probably done a good 3000 miles on the tyre since gluing.
    Faster than a tent.......
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