Advertise on Bikeforums.net



User Tag List

Results 1 to 5 of 5
  1. #1
    Senior Member
    Join Date
    Sep 2006
    Location
    Layton, UT
    My Bikes
    2004 Giant OCR, 2002 Specialized Stumpjumper, 2008 Trek 6500 Disc
    Posts
    686
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Bottom Brackets that will fit BB-6500

    I have an older bike Giant OCR, that has Ultegra crank FC-6500 and the BB-6500. So, I thought it would probably be a good idea to replace the bottom bracket, but when I look to replace it, it appears that the BB-6500 are almost non existent.

    Does anyone know of a way to see what bottom brackets would fit the cranks and the bike I have?

    length 109.5 (9-speed),
    Type V1 splined,
    Chainline 43.5
    BCD 130
    Tread 147

    If anyone knows of a good source to get these that aren't outrageous cost, it would be appreciated. (I saw one on fleabay, so hopefully, that one works out. Says new never installed. but would prefer a new from a store.)

  2. #2
    just pokin' along desertdork's Avatar
    Join Date
    Aug 2008
    Location
    the desert
    Posts
    1,042
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    BB-5500 & BB-7700 are still around

  3. #3
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,278
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by desertdork View Post
    BB-5500 & BB-7700 are still around
    I know for sure the 105-level BB-5500 is still available in 109.5 mm (double) and 118.5 mm (triple) spindle lengths. I have the triple version in one bike and it's been very good.

    Lickton's in Chicago has them in both lengths. Here is the link to the 109.5 mm version: http://www.lickbike.com/productpage....B='0229-13'

    They don't list the BB-7700 Dura Ace version and, while it was light and smooth, it wasn't a sealed cartridge and required routine maintenance.

  4. #4
    Senior Member
    Join Date
    Sep 2006
    Location
    Layton, UT
    My Bikes
    2004 Giant OCR, 2002 Specialized Stumpjumper, 2008 Trek 6500 Disc
    Posts
    686
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    thanks. You guys are awesome. Do I need to pull my BB off to ensure the replacement is the correct size, or can I assume the size from the FC-6500 / 6503 crank arms for double from Shimano?

    They list the BB as either 73, 70, or 68 as the the thread dimensions on Shimano's doc page.
    Last edited by gholt; 04-17-11 at 11:35 AM.

  5. #5
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,278
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Octalink road bottom brackets (V1 that fit 105, Ultegra and Dura Ace cranks) only came in 109.5 and 118.5 spindle lengths and in English threading requiring a 68 mm bottom bracket shell width and Italian threading that requires a 70 mm bottom bracket width. Your Giant is English threaded with nearly 100% certainly.

    A 73 mm bottom bracket shell is an MTB width. It uses English threads but a wider shell and is not used on road bikes.

Posting Permissions

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