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 Post subject: Slam That Stem Question.
PostPosted: Mon Mar 13, 2017 8:38 am 
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Joined: Thu Feb 12, 2015 9:40 am
Posts: 554
Location: Pom living in Australia
Hi Guys.
Originally my stem looked like this.Image
Then two weeks ago i dropped slightly to this, which i feel more comfortable with.Image
And then i bought this to go lower.Image
Image
Now after taking the stem and spacer off i came across this problem.
Image
Image
Even with removing the two micro spacers the upper head set bearings are to high. The gap between the dust cap and headtube should only be a papers width. Does this mean i need to change the bearings to one that sits lower.
Cheers


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 Post subject: Slam That Stem Question.
Posted: Mon Mar 13, 2017 8:38 am 


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PostPosted: Mon Mar 13, 2017 9:57 am 
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Posts: 1622
You could ditch the A junction holder and get the same drop on the Standard cover and use double sided tape to locate the A junction. Lighter and lower.

;)

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PostPosted: Mon Mar 13, 2017 10:46 am 
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Posts: 554
Location: Pom living in Australia
Yes that was one option that I was considering, will try that first, but I still would like to use the other cap on it's own with the junction box stuck under the stem. Lower the better for me.
What tape would you suggest please. !!
Cheers


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PostPosted: Mon Mar 13, 2017 11:14 am 
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Joined: Wed Jan 22, 2014 11:48 am
Posts: 2094
Location: Vienna Austria
The cover in the 2nd pic fits your headtube and bearings. It *covers* them.

If you get a bearing cover that's too shallow to cover the bearings, my suggestion would be to use one that fits - and you already have it.

Alternatively, I volunteer to take that badly designed frame off your hand so you can get one with flush bearings to fit your slamthatstem cover! :D


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 Post subject: Slam That Stem Question.
PostPosted: Mon Mar 13, 2017 11:56 am 
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Joined: Mon Mar 18, 2013 3:45 am
Posts: 334
You could try to fit a rubber shield or even a large rubber o-ring to fill the gap between top cap and frame. Some Ritchey dust cover/top caps have a rubber skirt that hangs down, you could try a few bike shops and see if they have something that fits?

Alternatively BMX headsets come with some pretty low bearing covers, Stolen has a pretty cool rubber one which has deeper sides and would fit really well. Light too. It's called the Stolen Implant.

Image

Or you could simply take a hacksaw to your current top cap and make yourself a low profile one. I've done it on one of my bikes which had a taller bearing arrangement similar to yours (Acros?). Took all of 10mins to cut, sand, re-coat and install.


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PostPosted: Mon Mar 13, 2017 12:00 pm 
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Joined: Thu Feb 12, 2015 9:40 am
Posts: 554
Location: Pom living in Australia
The caps are suppose to be universal.
Sorry Marin, you can't have my badly designed frame. :D


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PostPosted: Mon Mar 13, 2017 12:03 pm 
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Posts: 334
The Slam that Stem covers were designed for Tange headsets supplied with Cannondales. They fit a lot of other headsets but certainly not universal


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PostPosted: Mon Mar 13, 2017 12:34 pm 
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Joined: Thu Feb 12, 2015 9:40 am
Posts: 554
Location: Pom living in Australia
I was on the understanding that if needed using the micro spacers it would fit. O well never mind. !!!


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PostPosted: Mon Mar 13, 2017 12:45 pm 
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On closer look the second top cap has a rubber skirt, is it removable? Can you place that under the Slam that Stem cover?

Technically you don't even need one, so if you really want to Slam just run it without. Oh and take Nefarious's suggestion and ditch the Di2 spacer. Wasted mm's there.


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PostPosted: Mon Mar 13, 2017 1:23 pm 
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Joined: Thu Feb 12, 2015 9:40 am
Posts: 554
Location: Pom living in Australia
Fixie82 wrote:
On closer look the second top cap has a rubber skirt, is it removable? Can you place that under the Slam that Stem cover?

Technically you don't even need one, so if you really want to Slam just run it without. Oh and take Nefarious's suggestion and ditch the Di2 spacer. Wasted mm's there.


I will have a look tomorrow and see if I can remove it.
Yes I'll ditch the DI2 holder as it has been on my mind for a while, plus it will save 7g.
Is there a special tape to stick the JB under the stem.
Cheers


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PostPosted: Mon Mar 13, 2017 2:27 pm 
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Posts: 1046
Location: 93306
You could see if switching to a shorter compression ring would solve your issue.


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PostPosted: Mon Mar 13, 2017 6:01 pm 
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what brand is this frame. Top bearing looks ill-fitting.....

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PostPosted: Mon Mar 13, 2017 7:58 pm 
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Joined: Thu Feb 12, 2015 9:40 am
Posts: 554
Location: Pom living in Australia
nathanong87 wrote:
what brand is this frame. Top bearing looks ill-fitting.....

Lightweight Urgestalt.


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PostPosted: Tue Mar 14, 2017 1:05 am 
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Here's a pic of the top cap I cut down as the headset on the Stork, which is an Acros, had a higher assembly and left a gap just like yours. Without changing out the bearings and retention sleeve this is a low as it's going.

ImageImage


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Posted: Tue Mar 14, 2017 1:05 am 


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PostPosted: Tue Mar 14, 2017 4:05 am 
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Joined: Thu Feb 12, 2015 9:40 am
Posts: 554
Location: Pom living in Australia
Thanks Fixie82 for the pics, another solution to think about.


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