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Can't stop stipping nipples

Old 12-22-09, 05:04 PM
  #1  
TreeUnit
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Can't stop stipping nipples

I am currently rebuilding a wheel, having just painted it.
As the title states, I cannot stop smashing nipples in my spoke wrench. I have a park tool Triple Spoke Wrench, and I ensure before tightening each nipple that I am using the "size 0" wrench. Nonetheless, problems persist.
Any suggestions?
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Old 12-22-09, 05:06 PM
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too much tension or siezed nipples
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Old 12-22-09, 05:13 PM
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Keep in mind, I just disassembled this wheel without difficulty, so I am not sure seizing would explain the smashing. Tension is a possibility, but I have never destroyed so many nipples building a wheel before.
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Old 12-22-09, 05:22 PM
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Try lubricating the nipples where they touch the rim. Also, some form of spoke-thread treatment is likely to help, if you didn't do that already. If you need something low-budget that you can buy locally, pipe-thread sealant is cheap and readily available.
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Old 12-22-09, 06:21 PM
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Heck, I use linseed oil. One jug will last a lifetime. It does sound like a lube problem to me.
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Old 12-22-09, 06:23 PM
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You've got the wrong spoke wrench. You need one that holds all four corners of the nipples.
I use a red coded Spokey wrench.
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Old 12-22-09, 09:18 PM
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Originally Posted by Al1943 View Post
You've got the wrong spoke wrench. You need one that holds all four corners of the nipples.
I use a red coded Spokey wrench.
Stop saying this. It's bad advice.

You don't need that spoke wrench for regular wheelbuilds up to standard rear drive or front tension. With the correct size spoke wrench, proper lubrication and proper length spokes stripping nipples is a very good indication that you're exceeding proper tension by massive amounts. That 4 sides wrench is much slower to use and increases build time of a wheel substantially for ZERO gain.
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Old 12-23-09, 03:33 AM
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Drop of triflow into the gap between the nipple and hole for each hole...spin the sucker for a minute and get to work. Wouldn't hurt to "wiggle" each nipple before getting started to make sure the oil works in. If the spoke wrench has minimal slack and you are still stripping the nipples...then as operator says your are overtensioning - OR - you have reallly cheap nipples.

=8-)
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Old 12-23-09, 08:18 AM
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I can't help you. I have nipped stripples.
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Old 12-23-09, 08:26 AM
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Are you making sure to the push the spoke wrench all the way to the rim eyelet and then hold it there while turning the spoke? If not, you are mainly pressing against the counterbored and unsupported area of the nipple which will squash easily. More likely you are just overtensioning though.
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Old 12-23-09, 08:50 AM
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Originally Posted by TreeUnit View Post
As the title states, ?
Can't stop stipping nipples
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Old 12-23-09, 09:07 AM
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Ally or brass?
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Old 12-23-09, 12:36 PM
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Ally stipped nipples?
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Old 12-23-09, 03:21 PM
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Are you using a Park SW-7? If so, that's kind of an on the road emergency adjustment spoke wrench. I got one in my "Park Pack" years ago, still carry it on the road. You should take 6 bucks and treat yourself to a Park SW-0.
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Old 12-23-09, 05:41 PM
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Originally Posted by Dirtdrop View Post
Ally stipped nipples?
I think she was at the last STRIP CLUB I visited.
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Old 12-23-09, 05:50 PM
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Lenny Preheim (RIP) taught me the technique of truing wheels with high tension. It involves making sudden turns of the spoke wrench. This helps prevent rounding off the nipples.

The above advice is also good, but this technique can help.
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Old 12-24-09, 12:51 PM
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Originally Posted by Al1943 View Post
You've got the wrong spoke wrench. You need one that holds all four corners of the nipples.
I use a red coded Spokey wrench.
a four sided nipple wrench? I do not know about this. I never used anything fancier than the regular park ones or an inexpensive round one that had spots for several different size nipples.

I agree I bet the heads are binding in the paint arouns the holes. also are you reusing the nipples? I may reuse spokes, sometimes but never reuse nipples.
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Old 12-24-09, 04:19 PM
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Round off nipples no more:

https://harriscyclery.net/itemdetails.cfm?ID=640

Al
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Old 12-24-09, 04:59 PM
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My concerns have been mentioned already, but to reiterate:
1) Is the tension too high?
2) Are you using aluminum nipples?
3) Are you reusing nipples?
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Old 12-24-09, 05:52 PM
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Yeah, aluminum nipples are one of the worst ideas in the bike marketplace, worse than steel nipples.
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Old 12-24-09, 08:21 PM
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Originally Posted by noglider View Post
Yeah, aluminum nipples are one of the worst ideas in the bike marketplace, worse than steel nipples.
They're not that bad, actually. Alloy nipples these days are forged 7075-T6. The material's OK, surface friction is what needs to be addressed.
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Old 12-24-09, 09:04 PM
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In reality the very best wheels are built with aluminum alloy nipples.
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Old 12-24-09, 11:55 PM
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OK, then please explain why they're good. As you may know, I haven't worked in the business for a long time. What makes them better than brass? Most of us are not attempting world records, so it can't be the weight difference.
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Old 12-25-09, 12:43 AM
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Originally Posted by noglider View Post
OK, then please explain why they're good. As you may know, I haven't worked in the business for a long time. What makes them better than brass? Most of us are not attempting world records, so it can't be the weight difference.
I'd turn that around and ask why brass, an alloy mainly composed of copper and tin, is better than forged 7075-T6 aluminum. How many other parts of our bikes are made of brass? In my opinion, the two selling points of brass nipples are that they're cheaper, and that brass as a material has inherent lubricity so it may tolerate unlubricated installation better.

Alloy's selling points: reduces rotating weight at the edge of the wheel where it counts the most, and is available in colors so you can get the +0.1mph color-coordination advantage
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Old 12-25-09, 12:56 AM
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I like to dab a tiny bit o' grease in my spoke holes with a q-tip prior to builds. Works as well as oils, has typically been less messy for me. I dip the spoke threads in a grease tub also. Anti-seize or spoke prep should work a little longer if ya wanna get fancy about it.

Paint in the hole could be the culprit, I guess you would have had to try pushing a nipple through a hole prior to building and checked for resistance to know for sure if that was the case.
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