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  1. #1
    Senior Member
    Join Date
    May 2008
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    Mesa, AZ
    My Bikes
    Bianchi Pista, Brompton M6R, Bike Friday Traveler XL tandem
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    Dent in seat tube

    Today I noticed a very small dent on my Bianchi Pista's seat tube. It's very small and I only found it because of the way the light hit it. If I run my hand over the area I can just feel a shallow spot. The bike isn't that old and I've never hit the area so I'm guessing it came that way. My question: is it safe to ride? I certainly don't need a tube failure while going down a hill at 30 mph. I suspect this isn't an issue but I figured someone here could answer the question better than me. I've attached a picture but you can't really see anything other than a slight diffraction of the light.
    Attached Images Attached Images

  2. #2
    Senior Member
    Join Date
    Apr 2009
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    New Rochelle, NY
    My Bikes
    too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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    Yes it's safe to ride. It's extremely unlikely to fail suddenly within your lifetime.
    FB
    Chain-L site

    An ounce of diagnosis is worth a pound of cure.

    “Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

    “One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

    WARNING, I'm from New York. Thin skinned people should maintain safe distance.

  3. #3
    Senior Member
    Join Date
    May 2008
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    Mesa, AZ
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    Bianchi Pista, Brompton M6R, Bike Friday Traveler XL tandem
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    Quote Originally Posted by FBinNY View Post
    Yes it's safe to ride. It's extremely unlikely to fail suddenly within your lifetime.
    Thanks for the reply! Good to know it's OK.

  4. #4
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
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    +1 on safe. That dent is so minor as to be negligible and the seatube is not a highly stressed part. Even a major failure there should not cause an accident. As FB noted, the bike will likely outlive you.

  5. #5
    Senior Member
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    Jun 2010
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    I've had a couple of small dents in my downtube for the last 10 years (40K miles). It's an ALU frame I bought for $200 15 years ago - in other words, just about the cheapest.

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