Thread: Wheel building
View Single Post
Old 02-13-11 | 12:53 PM
  #31  
3alarmer's Avatar
3alarmer
Senior Member
 
Joined: Nov 2010
Posts: 22,994
Likes: 10,498
From: Sacramento, CA

Bikes: old ones

Originally Posted by SortaGrey
From my albeit limited experience.. your tension exceeded the limit of the rim. 130 kg is 286 lbs of force.. and this well over the specs of many alloy rims. Your rim sounds like it's loosing it's shape reacting to the high tension it's under... then applying the stress of testing shows that.. with the shape being compromised..........
So the newcomer to wheel building does same... learns by experience.
+1

Originally Posted by BG2
What i noticed after things happened was that some spokes where more tight and others where much more loose.

Is it possible to give me an answer on that one.
The results as you describe them are about what you'd
expect from failure due to over tensioning.

It is often correctable by running around the whole wheel
again and backing everything off by half a turn, then
truing up again being careful not to reach the same
tensions that caused the failure.

Respectfully yours,
Mike Larmer

p.s. The tensions you describe are not unreasonable and very
similar to what I usually try for in my own wheels, so I
understand your frustration in this case. Just one other
time when the magic didn't work, I guess.

Last edited by 3alarmer; 02-13-11 at 01:03 PM. Reason: add postscript
3alarmer is offline  
Reply