Running steerers flush with crowns
- Thread starter Viv92
- Start date
Problem is, you can't run it flush, you need it a couple of mm down to clear the recessed bit of the top cap. Since a top crown is already pretty shallow, this means you're clamping on not very much at all, and it'll possibly pinch the end of the tube. This isn't an issue with a stem as the clamping area is much bigger. There recommendation makes sense, run it a few mm longer and put a spacer on it.
Yeah, it's better to clamp as much of the steerer you can with the top crown...
Fark...FWIW though I rounded the bolt on my top crown, and my steerer has been totally unclamped for a few months now. Creaks a bit more maybe, but I still seem to be alive
Can't run it shorter. Wrecked my crown/steerer, got new one. new one is 2-3mm too short with King headset. If I can track down an FSA Orbit Xtreme I will have 3-4mm exposed above the top crown, enough to run a 5mm spacer and top cap.
If I can't find one of those however, I could run a slightly taller headset, and the steerer flush with the top crown. I know it needs to be 1mm shorter for the top cap to fit in.
This is as good as I can get it, will this kill me or no?
King Headsets have a pretty tall stack height. Find something with a lower stack height. I would highly recommend having those few mm's of steerer above the crown.
Anything from cane creek or FSA.
You definitely want the top crown to have full clamping surface. Run at least a thin spacer.
Any Opinions on the Opium? It's got some insanely low stack... reports of cracking though.
Cane Creek xx, xxc, or xxc flush. Best dh/fr headsets made right now.
They are all for 1.5 HTs. I have 1 1/8.
Too high. Just ordered CC one. Can't be too bad, and I'll be riding next weekend.
Yeah, but I know of people not doing it and there forks aren't wrecked so I'll go for it. I can run a 3mm spacer on top with the CC headset anyhow...
ive been running my boxxers with the steerer perfectly flush with upper crown on my dhr(2006,1.5 ht) for about 3months with absolutely no problems.if i had the choice id prefer not to but its working fine.
it is in the user manual:
"If using a direct mount stem, make sure the steerer is exposed 5mm above the upper crown. Use a short upper crown for head tube and headset stack heights of less than 150 mm or a tall upper crown for stack heights up to 180mm."
I would personally say, as long as your upper crown has full contact on the steerer, and you run a small spacer under the top cap so you can preload it, you will be fine. I dont see anything detrimental to having the top of the steerer flush with the crown, but as others have pointed out, you still need the spacer to be able to preload properly
i personaly always leave as much as possible, it also is better for resale value of the fork. but thats just my opinon.
That would be why my 66 has about 3/4 in of steerer above the stem.
Dual crown fork crowns are fairly cheap and replaceable though. I say cut them down to size.
Good choice on the Cane Creek headset. I think the Crank Brothers headset would be among the worst headset options.
Good choice on the Cane Creek headset. I think the Crank Brothers headset would be among the worst headset options.
I have one in a box and haven't used it yet (because I still don't have clearance to ride after my achilles rupture), but I don't have high hopes for it. Sort of a "cross my fingers and hope" that it doesn't chip or crack on install. If it makes it in, I'm sure it's fine, but I wouldn't have bothered if it weren't half price and I wasn't running a CK I wanted to get rid of. I'm waiting for Crank Bros to beef up the lip on the outer cup...
The CC and FSA are definitely better options, although I would trust any Aheadset licensed option from most companies unless they tried to do something funky or different. It's hard to screw up a headset, yet some companies still manage to.
Boxxer crowns in Australia are insanely expensive for what they are.