On Monday, April 5, 2021 at 4:04:08 PM UTC-7, wrote:
On Monday, April 5, 2021 at 3:49:56 PM UTC-7, Tom Kunich wrote:

Jay, the headset for my Douglas is absolutely NOT the standard hidden headset. It requires a Cane Creek 40 series headset which is not a week off. And I have to get the bottom FSA bottom headset race removed. It appears that the Cane Creek is not a press in but just drops right in and is held in place without motion by the pressure of the top cap.
I would not have had all of these problems is Colorado Cyclist had answered their emails to both their service center and sales.

Down the rabbit hole again. First, quit using all the wrong terms like "flush mount" or "hidden headset." Those are all wrong and don't follow modern designations. There is no standard "hidden headset." Second, the Cane Creek 40 series can be external (EC) internal orZero Stack (ZS), integrated (IS), hybrid, etc., etc. https://canecreek.com/product/forty/ Look at the dropdown menu. The series number tells you nothing about your headset type.. It's just a mid-fi product line.

Next, are there cups pressed into your frame? Please answer yes or no.
Does it look like the middle one: https://bike.bikegremlin.com/wp-cont...eadset-cup.jpg Have you been measuring to the inside of the cup or to the actual wall of the headtube? If so, WTF?

If you DO NOT have cups pressed into your frame, and you properly measured the upper headtube bore at 41mm, then that CONFIRMS an IS41 internal headset -- that and a milled-in bearing seat and the fact the bike is spec'd with a 1 1/8" fork. A ZS headset would have an ID of 44mm and not 41mm. At least that covers it for the upper bearing. If you have a hybrid headset, you could have a ZS lower bearing -- there could be a cup pressed in there that would have an ID of 41mm. The pictures I posted previous of the Fusion did NOT have a ZS lower because there was no visible cup shoulder. But if the Vector has a lower, pressed in, flush mounted ZS cup, then you have a hybrid headset and need to buy one of those.

This would be a five minute inspection in a bike shop -- or a five minute diagnosis on this NG if you didn't leak cryptic information and posted some pictures -- maybe with some calipers across the bore of the HT and looking down the bore.

-- Jay Beattie.