Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 05-10-08, 07:09 AM   #1
jprestley@comca
Member
Thread Starter
 
jprestley@comca's Avatar
 
Join Date: May 2006
Bikes:
Posts: 25
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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?
jprestley@comca is offline   Reply With Quote
Old 05-10-08, 07:29 AM   #2
maddmaxx 
Small Member
 
maddmaxx's Avatar
 
Join Date: Nov 2003
Bikes: Leader home built hardtail, Diamondback Response
Posts: 7,136
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 367 Post(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
__________________
We are an empire. Use it wisely.

Last edited by maddmaxx; 05-10-08 at 12:23 PM.
maddmaxx is online now   Reply With Quote
Old 05-10-08, 09:37 AM   #3
ultraman6970
Senior Member
 
Join Date: Dec 2005
Bikes:
Posts: 7,860
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I had a g/f that had xtra long nipples also
ultraman6970 is offline   Reply With Quote
Old 05-10-08, 11:57 AM   #4
interested
Senior Member
 
Join Date: Apr 2005
Location: KÝbenhavn
Bikes: Kinesisbikes UK Racelight Tk
Posts: 465
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(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
interested is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 11:14 AM.