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Slight bulge in new tyre - thoughts on safety?

poptart242poptart242 Posts: 513
edited July 2019 in Workshop
Bought some new Schwalbe Ones from BikeDiscount.de (as an aside, hella fast shipping, fair play).

One of the tyres seems to have a slight defect on the sidewall, meaning there's a slight bulge from about 80psi, perhaps half a centimetre. Doesn't affect the tread as far as I can tell.

I've emailed BikeDiscount to see what they think, but as a general view I thought I'd ask the BikeRadar hive mind. Would you ride these?

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Posts

  • imposter2.0imposter2.0 Posts: 11,382
    I'd stay off it. There are some marks on the sidewall which might also suggest that all is not well with the structure, as well as some visible fibres..
  • Ben6899Ben6899 Posts: 8,957
    I wouldn't ride that. I've also no doubt that bikediscount.de will look after you.
    Ben

    Bikes: Donhou DSS4 Custom | Condor Italia RC | Gios Megalite | Dolan Preffisio | Giant Bowery '76
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  • step83step83 Posts: 4,107
    As above, don't ride, remove it an check the tube and inside of the tyre, could be as innocent as a poor seating but it looks to be in correctly.
  • imposter2.0imposter2.0 Posts: 11,382
    Step83 wrote:
    As above, don't ride, remove it an check the tube and inside of the tyre, could be as innocent as a poor seating but it looks to be in correctly.

    'Poor seating' or not - if the sidewall is not uniform shape (and this one clearly isn't) then it suggests a problem with the tyre structure..
  • poptart242poptart242 Posts: 513
    Confirms my thoughts, thanks all. I'm sure they'll see me right. Not riding this weekend so no harm/no foul.

    Checked out the seating and it's all perfect - also noticed another similar bulge further round the tyre with the same non-uniform sidewall so it seems likely to be a manufacturing defect.
  • AlejandrosdogAlejandrosdog Posts: 1,975
    looks like my stomach in lycra. I can confirm that is not a positive for cycling
  • poptart242poptart242 Posts: 513
    Update from a customer service perspective - after initially suggesting that I return the tyre, they then forward to Schwalbe for inspection (3 week turnaround), and they then resolve, I reasoned with them that I'd rather they sent me the product I'd paid for! Shipped yesterday and likely here by the end of the week, so all's well. I'll return the ruined one and am coming out with three tyres for the price of two. All good.
  • keef66keef66 Posts: 13,123
    Am I being unusually dim? How are you getting 3 tyres for the price of 2?
  • poptart242poptart242 Posts: 513
    keef66 wrote:
    Am I being unusually dim? How are you getting 3 tyres for the price of 2?

    It was a set of two - one dead, two new ones on the way = 3

    I probably described it badly above, to be fair.
  • keef66keef66 Posts: 13,123
    Splendid result then!
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