Scratch on my stanchion

Discussion in 'Shop Talk' started by Obsidian, May 13, 2018.

  1. Obsidian

    Obsidian Well-Known Member

    Location:
    Costa Mesa
    Name:
    Obsidian
    Current Bike:
    2017 Intense Tracer
    Is this scratch on my stanchion a non-issue, or should I take it in to a shop? The scratch looks a bit worse than the pic makes it seem. It is about 3/4 up from the bottom.
    20180512_145616.jpg
    I am probably going to take the bike in soon anyway, as my shock has started making a squishing sound that I find disturbing. Similar to this vid ... although this is not mine.



    Anyone know a good suspension and fork shop?
     
  2. SnakeCharmer

    SnakeCharmer MTB Addict

    Location:
    Crescenta Valley
    Name:
    Mike, aka "Snake"
    Current Bike:
    Salsa/Trek/Kona
    That's minimal. I wouldn't lose any sleep over it.

    The noise however, sounds bad.
     
  3. MrGreedom

    MrGreedom Well-Known Member

    Location:
    Los Angeles
    Name:
    Ryan
    Current Bike:
    BH Lynx6
    I think I've heard of wet sanding stanchions to get out scratches.
     
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  4. DangerDirtyD

    DangerDirtyD MTB Addict

    Location:
    La Verne, CA
    Name:
    Dennis (AKA Dio)
    Current Bike:
    2013 Trek Slash 9 (26er)
    Take some super-fine sand paper +1,000 grit and lightly sand the area, just enough to remove (or substantially reduce) the nick. Don’t sand too much; a few seconds will smooth it out. If it’s a deep gouge, some people dab just a smidge of clear nail polish on there and then sand that area again after it dries. Personally, I just use super-fine-grit sand paper.
     
  5. Runs with Scissors

    Runs with Scissors MTB Addict

    Location:
    West Anaheim
    Name:
    Mark Whitaker
    Current Bike:
    2015 Giant XTC Advanced 1 29er
    Time for a new bike.

    The only real concern on that is if it is v-shaped at the bottom. Stresses will concentrate there and can lead to failure. I don't know the exact material or thickness of that stanchion, so it's hard to tell from the picture how bad it may be.

    If the coating is not penetrated it's probably cosmetic.

    We fixed these kinds of things on aircraft skins (7075 T6 Al) by sanding out any sharp edges and feathering into the surrounding surface. Doing so will probably remove the coating, though.
     
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  6. AKAKTM

    AKAKTM Well-Known Member

    Name:
    Tony A
    Current Bike:
    Ibis Mojo 3
    It's just a flesh wound....

    No, that's minor. As stated, very gentle sanding to remove any sharp edges and if it still has any indentations or edges, use clear nail polish.
     
  7. herzalot

    herzalot MTB Addict

    Location:
    Laguna Beach
    Name:
    Chris
    Current Bike:
    '15 Intense Tracer 275c DVOish
    BikeCo (Joe and Tracy) and Dana point's Bike Religion (Meng).
     
  8. Obsidian

    Obsidian Well-Known Member

    Location:
    Costa Mesa
    Name:
    Obsidian
    Current Bike:
    2017 Intense Tracer
    Cool. I have heard good things about BikeCo.
     
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  9. evdog

    evdog Well-Known Member

    Location:
    San diego
    Name:
    Evan S
    I always used to us JB Weld to fill scratches on stanchions. Same principle as nail polish - cleanse the area and scratch of any oil, sand down edges gently, fill, and sand once dry. Always worked perfectly for me. I don't own nail polish and wasn't gonna buy it for this....
     
  10. DangerDirtyD

    DangerDirtyD MTB Addict

    Location:
    La Verne, CA
    Name:
    Dennis (AKA Dio)
    Current Bike:
    2013 Trek Slash 9 (26er)
    Ask @rossage, he has all the colors.
     
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