Advertise on Bikeforums.net



User Tag List

Results 1 to 6 of 6
  1. #1
    Senior Member
    Join Date
    Feb 2007
    Posts
    135
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Newbie: Rejoining Chains? extending Chains with/without master Links?

    Can someone explain the ins and outs of Chains? breaking / Rejoining / masterlinks / etc..

    The other day I had a stuck link on my multi-speed Trek "Hybrid" and the guy at the LBS just removed it and stuck the chain back together.

    But then my SS Fixed Gear has a "track" Chain (KMC Kool Chain) on it that came with a "Master Link".

    I shortened the chain but now i'm thinking "what if I want to put on a bigger Chainring" do i need to buy a new chain? can I put add some of the links to the KMC back?

    ie When can and when can't you just break and rejoin a chain and what do you need to do it.

    Do i need special tools - or special rivet things?

  2. #2
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    Location
    St Peters, Missouri
    My Bikes
    Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
    Posts
    23,736
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Depends on the chain.

    We used to resize chains by pushing a rivet almost all of the way out and replacing it. The problem with doing that is the chain isn't quite as strong when the rivet is pushed back into place.

    Shimano chains come with special, replacement pins so you push the old rivet all of the way out and insert the special, replacement pin to rejoin the chain. The problem with that is you have to be sure to get the right size replacement pin for your chain, they are kind of a PITA to use, and you have to use a new pin every time that you break the chain.

    Sachs, and some others, use special replacement links to rejoin the chain. They are kind of nice because they make it easy to take off and replace the chain for cleaning.

    Lengthening a chain isn't something that you have to do very often. Usually, when I've had to do it, it's been because I had gotten a new cassette. I always replace the chain when I get a new cassette so adding additional links isn't something that I'd do.

    In the case of a tight link I use my chain tool to loosen the link and never shorten the chain. A chain that's too short to safely cover the big/big combination is dangerous.

  3. #3
    Elitist Troglodyte DMF's Avatar
    Join Date
    Jun 2006
    Location
    Dallas
    My Bikes
    03 Raleigh Professional (steel)
    Posts
    6,896
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Also, whatever chain you use, never remove/replace the same pin twice. Pressing it out once enlarges the hole (Shimano's special pins are slightly over-size to compensate). Pressing it out twice can make the hole so large that the pin might drift out, which is extremely dangerous.
    Stupidity got us into this mess - why can't it get us out?

    - Will Rogers

  4. #4
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,295
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by lukeC
    Do i need special tools - or special rivet things?
    Not for the KMC chain. Specifically which model (not that it would matter). 3/32 or 1/8 ?
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  5. #5
    robot ninja monkey yogi
    Join Date
    Jan 2005
    Location
    Manhattan
    Posts
    89
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i have a KMC chain with a master link, but push and wrangle as i may, i can't re-open the master link. any tricks for doing so?

  6. #6
    Elitist Troglodyte DMF's Avatar
    Join Date
    Jun 2006
    Location
    Dallas
    My Bikes
    03 Raleigh Professional (steel)
    Posts
    6,896
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The KMC link snaps into place and won't simple fall apart. I use a chain grabber to let me work on the link with both hands, turn it 90 to the rest of the chain and judiciously apply pliers - one jaw on each side.
    Stupidity got us into this mess - why can't it get us out?

    - Will Rogers

Posting Permissions

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