Advertise on Bikeforums.net



User Tag List

Results 1 to 6 of 6
  1. #1
    Senior Member
    Join Date
    Jul 2006
    Posts
    377
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    1981 Miyata 310 Bottom Bracket - what length??

    The old bottom bracket looked waaaay too wide - like 1cm at least. I have a 103mm bb which fits the non drive side perfectly but the drive side needs more length - there 's a deeper recess for the bb spindle than on more modern cranks.

    the crank says miyata as well.

    anyway, i'd be impressed if anyone could dig up this bit of knowledge.

  2. #2
    Still learning oddjob2's Avatar
    Join Date
    May 2012
    Location
    North of Canada, Adirondacks, NNJ
    My Bikes
    Too many
    Posts
    5,748
    Mentioned
    53 Post(s)
    Tagged
    1 Thread(s)
    Even though the crankset may be pantographed Miyata, the back of it may have the manufacturer's ID. Once you figure that out, look here.

    Sheldon Brown's Bottom Bracket Size Database
    Life is like riding a bicycle. To keep your balance you must keep moving. Albert Einstein
    2014 Additions: 1985 Trek 560, 1992 Trek Multitrack 700 (my 2nd), 1994 Trek Carbon 2200, Peugeot PX-10, 1981 Schwinn Voyageur 11.8, 1989 Bridgestone RB-1, Miyata 912

  3. #3
    Senior Member catmandew52's Avatar
    Join Date
    Jul 2011
    Location
    S. E. Michigan
    Posts
    515
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Maybe this would help, http://4.bp.blogspot.com/_whtVpXkKwl...600/img013.jpg

    Catalog says should be SR crankset.
    Take care that no one hates you justly. ~Publilius Syrus

  4. #4
    Senior Member
    Join Date
    Jul 2006
    Posts
    377
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    looks like its an SR SI-5DRG-AH

  5. #5
    Senior Member
    Join Date
    Jul 2006
    Posts
    377
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

  6. #6
    Senior Member
    Join Date
    Jul 2006
    Posts
    377
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    fwiw - i installed a 122mm bb and everything looks good so far. i'll report back with any updates.

Posting Permissions

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