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PostPosted: Fri Jun 08, 2018 6:27 am 
Dirt Disciple

Joined: Mon Apr 25, 2016 10:27 am
Posts: 80
Currently my stem is way to long for me and a little steep in angle. I've attached a photo of the kind of thing I have currently (too steep). 90mm with a less steep angle if possible .

Thanks


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PostPosted: Fri Jun 08, 2018 12:25 pm 
retrobike rider
retrobike rider
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Joined: Tue Jan 29, 2008 11:04 pm
Posts: 2257
Location: A wretched hive of scum and villainy...
OK to drill a good solid forged aluminium stem such as Cinelli/GB/SR/3TTT etc.
Don't do it to a modern welded tubular stem.
Plenty of touring and cyclocross bikes surviving from the 60s and 70s like this.

Drill about 30mm from the stem bolt, a 1.5mm hole through all for the cable inner followed by a 6 mm diameter, 3-4 mm deep in the top of the stem (to hold the cable outer).
Make sure it's centred and (if possible) parallel to the quill (not square with the extension) to get a clean looking cable line.

All the best,


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PostPosted: Fri Jun 08, 2018 12:36 pm 
Dirt Disciple

Joined: Mon Apr 25, 2016 10:27 am
Posts: 80
Thanks Dan, I had thought about drilling a hole but don't have the vice for it .... yet ! Good info cheers


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PostPosted: Fri Jun 08, 2018 1:32 pm 
retrobike rider
retrobike rider
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Joined: Tue Jan 29, 2008 11:04 pm
Posts: 2257
Location: A wretched hive of scum and villainy...
Although it would be possible with a vice and hand-held drill, probably better to do it with something more solid and accurate, like a milling machine, really.

Do you know any old blokes in sheds, model engineering, old motorbike etc?

All the best,


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PostPosted: Fri Jun 08, 2018 4:41 pm 
Dirt Disciple

Joined: Sun Jan 01, 2012 6:49 pm
Posts: 49
Or you could use a conventional stem with a cable hanger on the headset.


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 Post subject: Re:
PostPosted: Sat Jun 09, 2018 12:55 am 
Retro Guru

Joined: Wed Dec 10, 2008 9:19 am
Posts: 2373
Location: Sheffield, top city
Or use an uphanger attached to fork crown

BITD drilling the stem was the way - clean, lightweight, uncomplicated. But as old parts become rarer, you may not want to shed-modify them. Plus, if you have concealed cables, its gonna look awkward


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PostPosted: Tue Jun 19, 2018 1:11 pm 
Retro Guru
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Joined: Fri Jan 03, 2014 9:50 pm
Posts: 353
Location: London
Your current stem looks quite like an MTB one, and so the 1 1/8" column size to fir their wider diameter steerer tubes. If it's not though, then I've a 1" one for a tourer bike that might fit the bill?


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 Post subject: Re:
PostPosted: Tue Jun 19, 2018 1:28 pm 
Dirt Disciple

Joined: Mon Apr 25, 2016 10:27 am
Posts: 80
That's just an example I found online. Could you send me some details of the stem you have please? What length is it? Cheers


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 Post subject: Re: Re:
PostPosted: Tue Jun 19, 2018 5:43 pm 
Retro Guru
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Joined: Fri Jan 03, 2014 9:50 pm
Posts: 353
Location: London
Pm'd you.

The_Big_Commute wrote:
That's just an example I found online. Could you send me some details of the stem you have please? What length is it? Cheers


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