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 Post subject: Re: Extralite stem bolts
PostPosted: Thu Jan 17, 2013 6:07 am 
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Joined: Wed Jan 19, 2011 11:14 am
Posts: 1454
Location: SYD
I can confirm the face plate bolts are m4 12mm items.
Very hard to find in torx and for the record the Toronto cycles m4 Allen's are pretty soft.

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 Post subject: Re: Extralite stem bolts
PostPosted: Thu Jan 17, 2013 6:12 am 
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Joined: Thu May 24, 2012 1:01 am
Posts: 47
teufelhunden222 wrote:
Have you guys considered drilling the center of the Ti bolts? I mean after all this is WW


Yes, and in some applications, a small capsule filled with compressed angels farts is installed to lighten it even further.

Seriously though, check out the work done to lighten the newer Extralite stem bolts. That's some attention to detail:

Image


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 Post subject: Re: Extralite stem bolts
Posted: Thu Jan 17, 2013 6:12 am 


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 Post subject: Re: Extralite stem bolts
PostPosted: Thu Jan 17, 2013 6:17 am 
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Joined: Wed Apr 08, 2009 5:23 am
Posts: 380
Location: Port Angeles, WA
The four M4 bolts together weigh 3g.

To drill them would require a very fine bit, and not saving even a gram. But hey, you'd probably be the first!


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 Post subject: Re: Extralite stem bolts
PostPosted: Thu Jan 17, 2013 8:35 am 
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Joined: Thu Jan 10, 2013 9:16 pm
Posts: 83
Even if it saves 1/2 a gram. its a free 1/2 a gram :) If it were me, I would do it on a lathe.

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 Post subject: Re: Extralite stem bolts
PostPosted: Thu Jan 17, 2013 12:46 pm 
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Joined: Sat Apr 22, 2006 12:38 am
Posts: 1952
Location: Dutchess County, NY
FYI, this is where I found my replacement bolts for my old extralite stem:

http://www.titaniumfasteners.com/shop/? ... 47eae389c1


It looks as if they don't have them in 12 or 15mm length (it would be the TSHCS), but you could always get 20mm ones and cut them down to size.

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 Post subject: Re: Extralite stem bolts
PostPosted: Thu Jan 17, 2013 2:10 pm 
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Joined: Thu Aug 16, 2012 12:56 am
Posts: 467
Location: YYZ
sugarkane wrote:
I can confirm the face plate bolts are m4 12mm items.
Very hard to find in torx and for the record the Toronto cycles m4 Allen's are pretty soft.


Good to know. I ordered the standard M5 "stem bolts" and found there is a bit of play with allen head. Actually thought they may have been ASE rather than Metric, but they are indeed Metric. Just a bit sloppy.

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 Post subject: Re: Extralite stem bolts
PostPosted: Mon Sep 21, 2015 8:40 am 
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Joined: Tue Feb 18, 2014 10:52 pm
Posts: 32
Sorry to bump such thread. Some years ago I got an Roadstem Ul3 for very cheap (like 25eur), it came with some rusty steel bolts (they didn't seem original at all).
So I found this thread and bought some titanium bolts from ebay. My stem never held correctly the handlebars (first an ITM Millenium Carbon Road bar, and then an el cheapo aluminium road bar).
The bolts were tighnen correctly and even carbon paste was used.
Some days ago I realized that Extralite stems don't use regular bolts, the zone where the bolt head touch e rounded, no flat, and so are the bolts.
Here you can see it perfectly:
Image

Image

Image

Here is a normal bolt:
Image

Using regular bolts result in the head bolt not touching every part of the clamp or stem as you can see in mine:

Image

Image

This second one was made because a friend of mine used it and overtight it.
So, rule number one, get original Extralite Bolts.
Or use it as a paperweight (bolts cost 45eur, it is almost cheaper to buy another used stem, with original bolts).
Image
Hope it helps in the future.

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