Advertise on Bikeforums.net



User Tag List

Results 1 to 8 of 8
  1. #1
    Senior Member jdip's Avatar
    Join Date
    Aug 2012
    Posts
    114
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Does my tire need to be replaced?

    These are the tires that came with my new Cannondale Synapse. They have around 600km on them and the rear one seems to be splitting at a small section. I noticed this maybe 200km ago and it doesn't seem to have gotten much worse than when I first saw it. Is it dangerous to ride with this? Should it be replaced? Thanks..





  2. #2
    Senior Member
    Join Date
    Apr 2006
    Posts
    2,212
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    How good is your health insurance? Yes replace the tire as it will be cheaper. Roger

  3. #3
    Senior Member
    Join Date
    Sep 2003
    Location
    Allen, TX
    My Bikes
    Look 585
    Posts
    1,388
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It looks like the tread is separating from the tire. I wouldn't trust them.

  4. #4
    Senior Member
    Join Date
    Apr 2009
    Location
    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
    Posts
    22,409
    Mentioned
    66 Post(s)
    Tagged
    1 Thread(s)
    Trad separation on tires, especially HP tires isn't all that rare. Many HP tires are not molded in one piece over the tire plies, but are separately molded treads which are rubber cemented on. The best tires are made this way so the fabric isn't weakened by heat.

    Use rubber cement, or something like 3m FastTaK to glue it back and you'll be good to go. The way to do this is to inflate the tire, peel back the tread, and coat both the tread and body with glue, let it dry completely, then carefully rolling the tread into place. Work carefully, it's a contact bond, so you only get one shot.

    BTW- the 2 main causes of this problem are overloading/underinflation, and riding in the rain. I ride tubulars, and have been dealing with tread separation for 45 years. Just another minor inconvenience. Your tire is safe as long as the structural cloth plies don't show any damage. You can tell because when they weaken the tire will get lumps or twists, this happens long before they let go.
    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.

  5. #5
    Senior Member longbeachgary's Avatar
    Join Date
    Sep 2008
    Location
    Beautiful Long Beach California
    My Bikes
    Eddy Merckx MXL; 2012 CAAD10; 2013 CAAD10 - The Silver and Black; Cannondale CAAD10 DI2 - The Black Dahlia; 2013 Cannondale CAAD10 DI2, The Black Mambo
    Posts
    3,273
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by rhenning View Post
    How good is your health insurance? Yes replace the tire as it will be cheaper. Roger
    Great advice. Don't take any unnecessary chances.

  6. #6
    Galveston County Texas 10 Wheels's Avatar
    Join Date
    Nov 2007
    Location
    In The Wind
    My Bikes
    GTO
    Posts
    25,854
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Take it back to your bike shop.

    Good chance they will give you a warranty replacement.
    [SIZE=1][B]What I like about Texas[/B]
    http://www.youtube.com/watch?v=PGukLuXzH1E

    Set F1re To The Ra1n ( NY Night Rain Ride)
    http://www.youtube.com/watch?v=W7jfcWEkSrI

  7. #7
    Senior Member jdip's Avatar
    Join Date
    Aug 2012
    Posts
    114
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for the input everyone. I'll take it back to the shop first and see what they say. The bike is still very new so it sucks that this has already happened.

  8. #8
    Senior Member Slaninar's Avatar
    Join Date
    Nov 2010
    Location
    Novi Sad
    My Bikes
    Custom assembled on Polar Forrester frame. :)
    Posts
    1,296
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Had that happen on a Schwalbe Marathon. They replaced it for no charge. I wouldn't ride a tyre like that if I had money for a new one. Or could get it replaced. If not, I'd glue it and take corners and downhills slower. Have ridden worse.
    Evviva il comunismo e la libertà.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •