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What headset design for Carbon Steerer?(14 posts)

What headset design for Carbon Steerer?Ixnixit
May 6, 2001 12:54 PM
was just over reading the tech literature at Campy and they warn not to use the standard star nut in a carbon steerer. I like an idiot just stripped the bottom nut out of my Pinarello headset and need a replacement (yes I'm going to try and buy the little parts first.) If I choose to replace it, what's your recommendation?
any threadless headset will work...dave
May 6, 2001 2:06 PM
Campy record is a fine headset, chris king is also very popular, but pricey. From your description though, you don't need a new headset.

None of these headsets come with the internal reinforcing plug required for carbon steerers because every brand of steering tube is a little different. Unlike steel steerers, there is no standard inside diameter for the steering tube. The reinforcing plug is supplied by the fork manufacturer.

If you've stripped threads from the reinforcing plug, you can either buy a new one, or possibly install a helicoil to repair the thread.
not truepeloton
May 6, 2001 3:30 PM
You can't run a Chris King headset on a carbon steerer without risking failure of the steerer itself. This has to do with the way the King headset functions, and I admit I am not certain of the finer details of the problem. I believe it has something to do with compression of the steerer. I would look into other options in headsets if you are running a carbon steerer. Too bad too, Chris King headsets are real nice.
interesting info...dave
May 6, 2001 6:06 PM
Never heard that one before. Everyone seems to rave about Chris King. I use a campy record myself.
Chris King and CarbonMGS
May 6, 2001 6:52 PM
Don't know where you got your information.
I've used a carbon steerer on three different bikes, all with Chris King headsets.

I've used both a HSC and currently use a Colnago fork without a problem

No where in the information on the web or elsewhere is this information about problems with Chris King and carbon steerers listed.

Additionally, the number of bikes for sale, specifically with carbon steerers, often list Chris King as the headset.
This is just......B.S.....!!!
May 6, 2001 8:00 PM
Couldn't say it better .....(nm)MGS
May 7, 2001 5:05 PM
*NOT* not truegrz mnky
May 7, 2001 12:36 PM
Nice cycling gossip, but you're totally wrong.

Chris King works fine with carbon steerers - next time you see a gathering of high end road bikes with carbon steerers (any make) check out how many are running King's. You just need to use the correct expansion bolt instead of the star nut. The King NoThreadset is THE premium threadless headset to use. Been running an Ouzo Pro for over a year and even have a few crashes, but the front end is fine.
glad to hear that...peloton
May 7, 2001 7:10 PM
it isn't true. King makes a great headset.
... are you sure???Akirasho
May 8, 2001 1:13 PM
I know there are issues with stems... but I was unaware of any problem with headsets.

While I'm no expert, I can't see where a CK headset would put undue forces on a CF steerer... I'm currently waiting on a frame to be painted... then, it's to be built with a CK headset and a Reynolds Ouzo Pro Aero with CF steerer.

Can you give me your source?

Thanks and...

Be the bike.
False Alarm - Relaxgrz mnky
May 8, 2001 2:31 PM
Nah, the poster is incorrect. the King works fine with the Ouzo, just be sure to use the cap and expansion device supplied by Reynolds....and don't cut the fork too short! :-)
May 6, 2001 6:52 PM
I am surprised to hear though that it is okay to use the Record headset. The Campy tech literature speaks in very florid terms about steerer failure, death, dying and maiming if you use their star nut in a carbon tube.

I realize I don't have to actually replace the headset. I was asking in the event that Pinarello does not sell the small parts and I was forced to buy the whole thing instead of the two pieces I need. In that case, I am guessing that the Pinarello headset is going to be absurdly expensive in comparison to a Record or Chorus or just about anything else. And then, there's buying it = I couldn't find it or any parts anywhere on-line.
you don't use the star nut....dave
May 6, 2001 8:14 PM
Maybe you missed the point. Star nuts are for steel steerers. Regardless of the headset you choose, the reinforcing plug that comes with the fork must be used with it. You do not use the star nut. The reinforcing plug keeps the carbon steerer from cracking from the stem clamping force, and has threads for the top cap bolt.

What you need to buy is not a headset part, the reinforcing plug is considered part of the fork.
got it, butIxnixit
May 6, 2001 9:18 PM
I did miss your point, however the Vola fork I have does not have a reinforcing plug that is part of the fork, the expansion sleeve and two mushroom headed nuts are parts of and sold with the Pinarello headset.