Advertise on Bikeforums.net



User Tag List

Results 1 to 5 of 5
  1. #1
    Member
    Join Date
    Oct 2006
    Posts
    29
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    bottom bracket for 05' TCR

    ...hello, I'm building a new TCR and I'm just wondering what size BB I need to order...

    thanks for your help

  2. #2
    Member
    Join Date
    Oct 2006
    Location
    Redding, CA
    My Bikes
    Giant Trance 3 MTB / 06 Giant TCR C2
    Posts
    36
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    My '06 was english, should be the same for an '05.

  3. #3
    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
    23,577
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Measure the width of the bottom bracket shell. If it's 68 or 73mm, that also indicates English threading. The bottom bracket spindle length is determined by the crankset that you are using.

  4. #4
    Senior Member AnthonyG's Avatar
    Join Date
    May 2005
    Location
    Queanbeyan, Australia.
    Posts
    3,521
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    An 05 Giant TCR SHOULD have a standard sized Bottom Bracket which is 68 mm wide, English Thread. If your running a double chainring then you want a 108 mm spindle length and if you are using a tripple you want a 113 mm spindle length.

    Now that's just the standard but buyer beware if this advice is wrong.

    Regards, Anthony

  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
    25,260
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    Your bottom bracket is almost certainly 68 mm wide and standard English threading. The spindle length you need will be determined by the crank you choose and the crank's manufacturer will be very specific as to what is correct.

Posting Permissions

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