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 Post subject: Custom Stem Builder?
PostPosted: Mon Jan 08, 2018 4:30 am 
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Joined: Tue Jan 19, 2016 7:10 am
Posts: 346
I'm looking for a custom stem maker in the US who can do extreme rises. My current supplier goes up to 35° 150mm but sometimes there's a demand for even higher. I'd prefer aluminum because of cost but titanium is a possibility. 1 1/8" steerer, 31.8mm 4 bolt bar clamp.


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 Post subject: Re: Custom Stem Builder?
PostPosted: Mon Jan 08, 2018 6:19 am 
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Joined: Fri Oct 28, 2011 3:25 am
Posts: 1474
Location: United Kingdom of Great Britain and Northern Ireland
Ask any framebuilder who tig welds. But only expect them to offer to make one from steel and not anything else.


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 Post subject: Re: Custom Stem Builder?
Posted: Mon Jan 08, 2018 6:19 am 


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 Post subject: Re: Custom Stem Builder?
PostPosted: Mon Jan 08, 2018 7:11 am 
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Yeah, that's the fallback and I know a few who make Ti stems so they could probably do weird sizes but I'm hoping to find someone who can do aluminum (reasonable price and weight).


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 Post subject: Re: Custom Stem Builder?
PostPosted: Mon Jan 08, 2018 1:13 pm 
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Joined: Wed Nov 15, 2017 3:52 am
Posts: 7
Not US, and not aluminum,but maybe try and email Berk Composites. I follow them on IG and they do really nice work.


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 Post subject: Re: Custom Stem Builder?
PostPosted: Mon Jan 08, 2018 2:28 pm 
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Joined: Tue Jan 13, 2009 2:35 am
Posts: 789
I'm just curious about why?

Why would you need a stem greater than 35 degrees and longer than 150mm? At that point, I think you'd want to start looking for a new frame.


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 Post subject: Re: Custom Stem Builder?
PostPosted: Mon Jan 08, 2018 3:19 pm 
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Joined: Tue Jan 19, 2016 7:10 am
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topflightpro wrote:
I'm just curious about why?

Why would you need a stem greater than 35 degrees and longer than 150mm? At that point, I think you'd want to start looking for a new frame.
Our travel case can only fit a fork steerer tube up to a certain length. About once a year (maybe every other year) we have a customer who wants the bar higher than the max steerer length and 35°, 130 or 150mm stem gets it. Those customers have to remove the fork from the frame and pack it in a seperate bag. As a mechanic on the tours I've seen a couple bikes like this. To me that kind of defeats the purpose of the Santana Safecase & Z-coupler system because it's normally such a simple and elegant way to pack a travel tandem. I'd like to offer those guys a solution that lets them put the handlebar where they want and still pack the bike as intended*. Who knows, maybe no one will choose it cuz they prefer the look of a more traditional stem and tall steerer and are willing to deal with a little extra packing hassle.

Also remember, 150mm isn't very "long" when angled up at 35°+. The Safecase doesn't limit top tube length within reason, only steerer length. It was designed before the age of foot long head tubes.

It sounds as if Ti guys like Erikson or Moots are the only option. Or one of the steel stem guys. I just wanted to make sure I wasn't overlooking anything.


*I realize handlebar risers and steerer extensions exist but those are even goofier looking than a 45° stem and probably heavy and flexy.


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 Post subject: Re: Custom Stem Builder?
PostPosted: Mon Jan 08, 2018 3:32 pm 
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Posts: 789
That makes sense. Thanks.


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 Post subject: Re: Custom Stem Builder?
PostPosted: Mon Jan 08, 2018 9:18 pm 
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Joined: Sat May 26, 2012 11:26 pm
Posts: 1016
Have you had a look at adjustable stems. Bbb make a high stack trekking stem at up to 60 degrees rise.

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 Post subject: Re: Custom Stem Builder?
PostPosted: Mon Jan 08, 2018 11:56 pm 
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Posts: 346
Thanks for pointing those out. Perhaps that would work but maybe a little short on reach when angled way up because they don't make an extension longer than 120. Also, kinda heavy and inellegant.

It doesn't look like Ericksen makes stems and custom Moots are $520. Any leads on something cheaper than Moots but lighter than steel or adjustable?


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 Post subject: Re: Custom Stem Builder?
PostPosted: Tue Jan 09, 2018 12:14 am 
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Joined: Wed May 13, 2015 10:35 pm
Posts: 118
Frank the welder on Instagram welds the Spooky frames. He may be able to help? As a experienced aluminium welder in the bike trade it might be worth a try.


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 Post subject: Re: Custom Stem Builder?
Posted: Tue Jan 09, 2018 12:14 am 


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