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Old 07-27-07, 12:12 AM   #1
game
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Adjusting height of Threadless Headset?

I'm rather new to the scene so please forgive me... I don't know a damn thing about bicycle mechanics. But I am here trying to learn! Earlier in the week I actually paid my bike shop $5 to flip my stem over. I watched them perform this 10 second job and realized I was a true jackass. Now with my stem flipped, my handlebars are a little too low. Can I raise my headset half an inch or 1 full inch? I believe I have a Cane Creek threadless headset. I removed the bolt in the cap on the top of the stem to find a star nut. Now what??? Any help would be much appreciated.

Thanks in advance.
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Old 07-27-07, 04:21 AM   #2
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The top of your install should have about a 3mm gap like this in order to tension the bearings with the top cap and star nut. Just follow the directions in the link below.



Headset Adjustment - Threadless Type

Refer to this link for specifics and scroll down the page.

Park Tool Site - Headset Applications
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Old 07-27-07, 05:05 AM   #3
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You may not be able to raise it if the steerer tube is cut. If there are no spacers above the stem then it cannot go up. If there are, then spacers from above the stem can be moved to below the stem.

Perhaps a stem with a different angle would help.
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Old 07-27-07, 05:42 AM   #4
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Originally Posted by maddmaxx View Post
You may not be able to raise it if the steerer tube is cut. If there are no spacers above the stem then it cannot go up. If there are, then spacers from above the stem can be moved to below the stem.

Perhaps a stem with a different angle would help.
maddmaxx has pointed out the limitation inherent in the threadless stem design.

You just flipped it, so you're not used to riding this way. I you have no above stem spacers to move, give it a couple weeks of riding at least before you buy a different angle stem.
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Old 07-27-07, 07:00 AM   #5
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They sell a Heads Up riser, that gives you 3 more inchs. $25
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Old 07-27-07, 07:12 AM   #6
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Ummm... Unflip it? Just sayin'.
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Old 07-27-07, 07:17 AM   #7
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Ummm... Unflip it? Just sayin'.
+1. This seems like an easy one.
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Old 07-27-07, 07:28 AM   #8
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You may not be able to raise it if the steerer tube is cut. If there are no spacers above the stem then it cannot go up.
Yup, this is a downside (IMHO) of a threadless set-up. As stated, if you have spacers, you can do some adjusting limited to the height of the spacers.

... Brad
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Old 07-27-07, 07:49 AM   #9
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Or you can buy another stem with a different amount of rise.
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Old 07-27-07, 08:07 AM   #10
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Without knowing the actual stem rise you have it's hard to suggest, but a zero rise stem like http://aebike.com/page.cfm?PageID=30...ils&sku=SM2312
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Old 07-27-07, 08:37 AM   #11
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Ummm... Unflip it? Just sayin'.
I think he should go back to the shop and ask for a stem just like the one he has, only with the rise in the other direction so when he flips it, it'll work out perfectly. He could probably find one for under $100 I bet.
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Old 07-27-07, 11:00 AM   #12
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OK very cool. Thanks guys.
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Old 07-27-07, 10:01 PM   #13
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Or you could put the spacers on top of the stem and flip it upwards.
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