- King Headset scoring: fact or myth?
This is for those who have first hand experience of Chris King headsets, so please no hearsay or conjecture.Posted 9 years ago
Have you had the headset scoring the fork steerer tube?
Did you have the headtube faced before installation?
Did this occur on a steel or aluminium steerer?
Never had it happen to me. Same CK headset on a Reba (ali steerer) and a Thor (again ali steerer). Headsets been used on 3 bikes, and never faced any of the headtubes.
Don’t doubt it happens, don’t know whether I’m convinced that it’s a failure of King’s design though.Posted 9 years agoGordymacSubscriber
Yes on both my bikes, Turner 5 spot with Pikes & Chromag Samurai with Pikes.
Yes they were both faced.
Aluminium steerers on both (Pike 454 u-turn) Don’t really run them above 130mm, only very occasionally are they wound out to the full 140mm.
Now ditched the Kings on both bikes and running Cane Creek S8s with no problems whatsoever.Posted 9 years agoauricgoldfingerSubscriber
No scoring, used on 3 frames, with travel up to 160mm.
However, I have found yesterday that the inside of the lower cup is heavily scored on the inside on one side. It appears my steerer has scored my King headset!
My LBS, also say they’ve never seen it (are a CK stockist)Posted 9 years agojames-oMember
no issues on a carbon road steerer, regular use over 4 years. same fork, same headset, inspected a couple of times and all well and good.
“due to dirt getting trapped between the o-ring and the steerer and marking the steerer if there’s a small amount of play present”
it probably is…Posted 9 years agoadstickMember
Nope, the marking is normally the whole depth of the race, not just around where the o-ring fits. I’m not sure it will cause detrimental damage to the fork, but if left it definitely stops the headset working properly.
Question is, why would you buy a King when:Posted 9 years ago
-they have been shown to score steerer tubes
-there is a better headset design out there
-they cost 4 times more than a very good headset
I don’t understand why this affects CK headset only, as all headsets use some sort of adjustable washer to centre the steerer, CK use an o-ring, other’s use a wedge. There’s essentially no difference. If anything, you’d expect the wedge expander to do more damage, as it’s metal, and the o-ring that CK use is soft rubber.Posted 9 years agonasherMember
It happened on my pikes and my friends Fox 36.
What annoyed me most was the creaking, and my pikes had avery deep groove.
However I had one on my road bike with a carbon steerer…..no problems at all.
It seems the problems lie with long travel suspension forks, there was a thread somwhere on MTBR saying that the design and tight tolerances of the CK headset does not allow for any ‘give’ hence the scoring.
BTW I used other headsets and no problems.Posted 9 years ago
there was a thread somwhere on MTBR saying that the design and tight tolerances of the CK headset does not allow for any ‘give’ hence the scoring.
whereas the o-ring can be squashed out of the way and this play causes the scoring as the steerer comes into contact with the headset cups (alledgely).
these two posts are suggesting that the issue is that CK simultaneously have too much, and too little “give” which makes me think that the problem isn’t well understood?Posted 9 years ago
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