Advertise on Bikeforums.net



User Tag List

Results 1 to 4 of 4
  1. #1
    Member jprestley@comca's Avatar
    Join Date
    May 2006
    Posts
    25
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Extra Long Nipples

    Now that I've got your attention - I'm making some wheels with Ambrosio FCS 28 deep-V rims. It seems like I need to use the longer 16mm nipples (rather than the usual 12mm) to get them to protrude far enough through the rim to be able to grab them with a spoke wrench (even my trusty Spokey). Two questions: 1) Is this normal with deep-V rims, say for example, Velocity deep V's? and 2) When using this longer nipple, do you then subtract the 4mm from the spoke length given by whatever spoke length calculator you use? In other words are most of these calculators assuming a 12mm nipple length?
    VeloJon

  2. #2
    Small Member maddmaxx's Avatar
    Join Date
    Nov 2003
    My Bikes
    Leader home built hardtail, Diamondback Response
    Posts
    7,126
    Mentioned
    4 Post(s)
    Tagged
    1 Thread(s)
    The DT Swiss calculator adjusts the spoke length depending on what nipple is used. I believe it may also recomend a particular length nipple for some of the rim choices.

    It is normal to use a longer nipple on Deep V rims such as Mavic CXP33 or the New DT deep v
    Last edited by maddmaxx; 05-10-08 at 12:23 PM.

  3. #3
    Senior Member
    Join Date
    Dec 2005
    Posts
    7,819
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I had a g/f that had xtra long nipples also

  4. #4
    Senior Member
    Join Date
    Apr 2005
    Location
    KÝbenhavn
    My Bikes
    Kinesisbikes UK Racelight Tk
    Posts
    465
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jprestley@comca View Post
    Now that I've got your attention - I'm making some wheels with Ambrosio FCS 28 deep-V rims. It seems like I need to use the longer 16mm nipples (rather than the usual 12mm) to get them to protrude far enough through the rim to be able to grab them with a spoke wrench (even my trusty Spokey). Two questions: 1) Is this normal with deep-V rims, say for example, Velocity deep V's? and 2) When using this longer nipple, do you then subtract the 4mm from the spoke length given by whatever spoke length calculator you use? In other words are most of these calculators assuming a 12mm nipple length?
    It is not unusual for aero or semi-aero rims to benefit from longer nipple lengths. I build my Mavic CXP33 with 14 mm nipples because they make it is easier to turn the spokes without hitting the rim.

    AFAIK nipple length has nothing to do with spoke length. The point is that the ideal spoke length is one that is flush with the "nipple slot for the screwdriver" (I don't know the English word for it), and a longer nipple doesn't change that, they are just longer so one can get a grip with spoke key.
    Or to put it into a strange analogy, think of a woman with two dresses; one is a mini-skirt and one is a long skirt; The woman's height (=spoke length) doesn't change depending on whether she wears a short skirt (=12 mm nipple) or a long skirt (16 mm nipple).

    Again, AFAIK the actual amount of thread inside a 12mm and a 16 mm nipple is the same, the 16 mm nipple just has a longer skirt.

    --
    Regards

Posting Permissions

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