2nd nut Chris King headset?

[dekindy]

I saw the description below for a CSI believed to be a 1999 model year frame. Can you tell me about this product, please?

"The head tube is 16cm. The headset, a Chris King 2nut set increases that height to an effective 20cm."

[PaulE]

Chris King has at least 2 different threaded 1 inch headsets. One is the grip nut which is meant to be used without any spacers between the two locknuts. Another is the 2 Nut. The 2 Nut can accept as many spacers between the two locknuts as the length of the threaded steerer tube will allow.

So the CSI mentioned below must have a long steerer tube for its 16 cm headtube.

[eddief]

http://chrisking.com/headsets/hds_gnut

http://chrisking.com/headsets/hds_2nut

[Mike748]

The pictures in the auction appear to show a spacer between the upper race and the locknut, so the fork was cut long.

The CK 2 nut headset is a conventional threaded headset.

[Tom Matchak]

Chris King's "2Nut" model headset is their original threaded headset. This is the classic design, with a locking nut that tightens down against the top adjustable cap. Since the locknut and adjustable cap are independent pieces, you can insert a spacer(s) between these two pieces, effectively increasing the HT length.

In contrast, CK also makes the "Grip Nut" model of threaded headset. In this design, the locknut interfaces with a collet-like extension on the adjustable cap, forming an integrated unit which locks tight against the steerer. This design, which I believe is exclusive to CK, does not allow a spacer to be added to the upper stack.

From the for-sale bike's quoted description, the seller is just saying that the headset is the classic design, and that it has been set up with a generous (looks like 4 cm) stack of spacers under the locknut.

On a related note, all of those extra spacers don't necessarily mean that you can position the stem 4 cm higher. The tightening wedge on the bottom of the stem's quill should not be located in the threaded section of the steerer. This may be what limits your stem height, rather that the minimum-insertion mark on the quill.

[Ti Designs]

So what's the difference between the old new coke and coke classic?

[dekindy]

Chris King's "2Nut" model headset is their original threaded headset. This is the classic design, with a locking nut that tightens down against the top adjustable cap. Since the locknut and adjustable cap are independent pieces, you can insert a spacer(s) between these two pieces, effectively increasing the HT length.

In contrast, CK also makes the "Grip Nut" model of threaded headset. In this design, the locknut interfaces with a collet-like extension on the adjustable cap, forming an integrated unit which locks tight against the steerer. This design, which I believe is exclusive to CK, does not allow a spacer to be added to the upper stack.

From the for-sale bike's quoted description, the seller is just saying that the headset is the classic design, and that it has been set up with a generous (looks like 4 cm) stack of spacers under the locknut.

On a related note, all of those extra spacers don't necessarily mean that you can position the stem 4 cm higher. The tightening wedge on the bottom of the stem's quill should not be located in the threaded section of the steerer. This may be what limits your stem height, rather that the minimum-insertion mark on the quill.

That is great to know. Thanks!

[Ken Robb]

any truth to the rumor that "The Shack" team is using the 2nut?

[dekindy]

any truth to the rumor that "The Shack" team is using the 2nut?

No, however Lance is endorsing it and it will be sold at over 4,400 TheShack (formerly RadioShack) retail locations nationwide.