Advertise on Bikeforums.net



User Tag List

Results 1 to 2 of 2
  1. #1
    Senior Member
    Join Date
    Oct 2007
    Location
    st augustine fl
    My Bikes
    2006 Pinarello F4:13, all Sram Red 10, 2008 Specialized Tarmac, all Sram Force 22, Fuji Touring bike
    Posts
    686
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Shimano Chainrings

    I have an older (95) Schwinn Paramount with a Shimano 105 group on it. I have been riding this for many, many miles and recently put on a new cassette and new chain and decided it would be a good idea to get new chainrings as well. I purchased a new set off e-bay that seem lighter and look quite a bit different from what came off. They are for a model FC-5502.

    They have some weird machining on them that looks like a wear pattern, some small rivet looking things that are placed around the ring. I don't know, I would hope Shimano has a method to it's madness. I put them on today and it shifts OK on the stand but required some adjustment. Does anyone know what the deal is with these rings??

    Yeah, yeah..I know I about the "Shiano" in the title..it's happy hour here!

    Mike
    Last edited by bykemike; 12-13-09 at 06:04 PM.
    "ready to navigate"

  2. #2
    Senior Member
    Join Date
    Feb 2005
    Location
    Oklahoma
    My Bikes
    Trek 5500, Colnago C-50
    Posts
    9,430
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    The rivet looking things are pick-up pins and help the chain shift up to a larger chainring, smoother and quicker. You may notice that some of the teeth have special shapes or ramps, also shifting aids.

    Al

Posting Permissions

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