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Re-using tyres

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  • 28-09-2020 11:43am
    #1
    Maidhci
    Registered Users Posts: 864 ✭✭✭


    I wonder is it advisable to use previously used tyres with good thread etc. etc. as a temporary measure? Not sure if tyres become perishable in storage, after use - if anyone knows, would appreciate some info. Many thanks.


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    #2
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 48,477 CMod ✭✭✭✭magicbastarder


    how old, and where stored? if cool and dark, they'll keep for several years. and if there's tread still on them, they shuold be OK on that front too.


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    #3
    Breezer
    Registered Users Posts: 3,228 ✭✭✭Breezer


    Related, probably silly, question. I have a set of almost new GP4000s that have been sitting in the back garden for a year and a half, uncovered. One on a wheel, one off. Should I forget about ever using these again?


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    #4
    Cee-Jay-Cee
    Registered Users Posts: 12,235 ✭✭✭✭Cee-Jay-Cee


    Breezer wrote: »
    Related, probably silly, question. I have a set of almost new GP4000s that have been sitting in the back garden for a year and a half, uncovered. One on a wheel, one off. Should I forget about ever using these again?

    I wouldn’t. Cold weather hardens the rubber and cause it to crack/perish.


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    #5
    Maidhci
    Registered Users Posts: 864 ✭✭✭Maidhci


    magicbastarder wrote: »
    how old, and where stored? if cool and dark, they'll keep for several years. and if there's tread still on them, they shuold be OK on that front too.

    Thanks for this - the tyres are approximately 3/4 years old, not very high mileage, as stated the thread are still very good, stored folded in a cardbox box in the garage. it is only the rear tyre that is in a questionable state. I tend to change tyres reasonably frequently, with good thread levels etc. Somehow, the tyres currently on the bike have much lower mileage than previous tyres had when replaced. Will check all of this tomorrow as I keep a note in my cycling log of tyre change dates etc. Again, thank you for you input.


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    #6
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 48,477 CMod ✭✭✭✭magicbastarder


    Cee-Jay-Cee wrote: »
    I wouldn’t. Cold weather hardens the rubber and cause it to crack/perish.
    on that note, are they actually cracked or perished looking though?


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    #7
    triggermortis
    Registered Users Posts: 2,683 ✭✭✭triggermortis


    Before you fit them give them a good looking at for cracks or brittleness. If they’re still supple I’d have no problem fitting them.
    Give them another good look over once they’re on a rim at full pressure and any cracks should show up


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    #8
    Breezer
    Registered Users Posts: 3,228 ✭✭✭Breezer


    I’ll take a look. I may be back with photos, though, because I’m not sure I know my rear end from the middle of my arm on what I’m looking for!


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    #9
    triggermortis
    Registered Users Posts: 2,683 ✭✭✭triggermortis


    Breezer wrote: »
    I’ll take a look. I may be back with photos, though, because I’m not sure I know my rear end from the middle of my arm on what I’m looking for!

    Just see how flexible the tyre is with your fingers. If it seems dried out or there are cracks in the rubber then it’s no good - especially the sidewalls, nearer to where the tyre fits into the rim. This is the thinnest area of the tyre and you don’t want any weakness here.
    Along the tread pattern you need to look for deep cuts or nicks that anything could easily pass through to puncture your tube.
    Any damage like fraying or flat spots or canvas showing through the rubber are signs that the tyre is past its usefulness


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