Twenty6 DM Stem..SHoudl I Be Concerned?
- Thread starter StunZeeD
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Ill start by saying I looked at the build on your bike NIIIIICE!!!!!! Good job and the new answer bars I need to get some... Good choice and what a SICK build man....So just built up my bike and went with wide Answer Pt's, plan to cut them down to around 30ish but still kinda concerned about the Twnety6 Stem.
Looks kind of weak, especially with wide bars..should I swap out now while I can still return?
Its pretty stout theres been 1 broken one Im aware of but I still use it and beat on mine pretty regularly. Its a good stem, looks can be deceiving, it looks to narrow on the clamp on front as well as thin material especially for wide bars but it works well....
I was concerend with my original one but so far so good. Id like to try the new Hope stem/crown..
Im running dirty thirties so same width your running.
Its a good unit, I wouldnt concern myself with it...
Make sure you even the clamp spread on top and bottom I slapped mine on and since readjusted it, not that it caused any issue but when somethings holding my face from slamming into it Id like to make sure all is good. LOL
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Someone should use a torque wrench on that. Just sayin'... 
LOL.... It slides bottom close or top close, you have to center it and then blot down clockwise to center it. I threw it on there literally and adjusted later.Someone should use a torque wrench on that. Just sayin'...
That is the one thing Im not excited about, the gap you see there. The bottom is close to touching but not and the top has that amount of opening so even if its spread evenly between top and bottom isnt that a bit too much gap using ti bolts with the leverage that thing sees?
It has not been a problem but wouldnt that be something that should have a tighter tolerance or is it because of the PC on the bars???
I'm sure you will be fine... Its a standard handlebar/stem, nothing special, just that the markings on the bar are make the stem look super narrow (they want you to buy their stem too). That being said their stem is really wide, which makes a lot of sense for a wider bar.
You could probably sell that stem used for what you can buy the answer stem new.
You could probably sell that stem used for what you can buy the answer stem new.
You should be very concerned. Send your bike to me immediately for testing. I'll have it back to you by mid november with an answer.
I've heard of breakages before but I don't know if it's worth being concerned about. Everything I've heard has suggested they are stout and safe.
FWIW, I think they are switching to a wider clamping area on the new model.
FWIW, I think they are switching to a wider clamping area on the new model.
I've been on my twenty6 stem for a year in a half with no problems.
I was pretty disappointed with my experience with twenty6 products.
I bought a direct mount stem and it had a fault down one side that split.
You get problems like that, so I got a replacement no worries.
The replacement wasn't machined properly in the bar clamp area - so I had offset steering... plus the anodising faded quickly (my bike is stored indoors in the dark btw)
Bought a Thomson X4 - light & wont risk twisting your forks on impact
Also I bought a set of the chromo axle pedals (that still cost a fortune), they didn't last long at all, the metal was really soft - even the axle nut disintegrated when I tried to rebuild them.
Bought some Atom Labs - harder wearing and cheaper
I bought a direct mount stem and it had a fault down one side that split.
You get problems like that, so I got a replacement no worries.
The replacement wasn't machined properly in the bar clamp area - so I had offset steering... plus the anodising faded quickly (my bike is stored indoors in the dark btw)
Bought a Thomson X4 - light & wont risk twisting your forks on impact
Also I bought a set of the chromo axle pedals (that still cost a fortune), they didn't last long at all, the metal was really soft - even the axle nut disintegrated when I tried to rebuild them.
Bought some Atom Labs - harder wearing and cheaper
HOLY $H*T! LOL do they sell it by the lb, theyd probably make more money that way!!!I reccomend this- just to be safe:
I have a lot of buddys that run his stuff... not me though. Ive had a few bad customer service issues. The fading is common and so is flaking. One of my buddys bought the white levers and they started to flake. Both levers were different color underneath.
U.S.A. designed and machined including hardware, moto style clamp. Aprox 130grams W/ hardware. Currently undergoing in field and all associated load testing. 50mm length, standard zero rise and true zero rise(bottom of bar to top of crown) 100% cnc machined from 6061. Let me know your thoughts as I'm sure you will.
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I was thinking "not bad"...then i saw the faceplate
Where on Sunlines web site does it mention 7075?
the twenty6 sucks... i broke TWO of them - each one crash each.. first one got warrantied and got the 2nd one, which cracked in three places.
my truvativ direct mount stem has taken way harder spills and hasnt budged a millimeter.
Nice.
My only contribution is that from talking to the guys at Thomson, they think people are nuts for running ti bolts on any stem because of the forces involved. I trust him because I've never broken anything Thomson.
It just seems that the twentysix stems are turning out to be too light. Ya maybe only a few broke, but thats a few more than any other direct mount that is around. I have the function bikes integrated crown stem on my 40 and I love it.
The Twenty6 is 6061?
Hmm. I always assumed it was 7075.
I'll start by saying that I have no experience with this stem. Last year I did design and manufacture a direct mount stem for my own use. I calculated some load scenarios with a liberal SF and ran some tests in Cosmos to validate the design and make sure that it would withstand the specified loading. It was a nice little exercise in determining how to efficiently design a DM stem and also which areas would be under the highest stress/strain.
After that entire process, looking at the design of the Twenty6 stem kind of left me scratching my head. I'm not saying that the stem is prone to failure, but I would be more comfortable using other brands.
Hmm. I always assumed it was 7075.
I'll start by saying that I have no experience with this stem. Last year I did design and manufacture a direct mount stem for my own use. I calculated some load scenarios with a liberal SF and ran some tests in Cosmos to validate the design and make sure that it would withstand the specified loading. It was a nice little exercise in determining how to efficiently design a DM stem and also which areas would be under the highest stress/strain.
After that entire process, looking at the design of the Twenty6 stem kind of left me scratching my head. I'm not saying that the stem is prone to failure, but I would be more comfortable using other brands.
Cool! I've also gone into designing my own DM stem on Inventor and running it under the Stress analysis FEA program it has. Any imput as to how much force as a minnimun I should be trying and where exactly should I apply it?
I was gonna say the design looked really good until I saw the M in front. I understand that brandind is something really important, but your killing your design with it...
Yes do that, the Canfield stems look so good, and I love the way it puts the center of the handlebar in line with the stem for a lower ride.
I have a Hope Direct Mount Crown and Stem on the way for my 40. Nice and low profile like the Canfield but w/fewer bolts since the stem and crown are all one piece.
http://www.pinkbike.com/news/Hope-Tech-direct-mount-stem-crown-2010.html
http://www.pinkbike.com/news/Hope-Tech-direct-mount-stem-crown-2010.html
I called Chris today about the stem, black is out of stock for a bit but the other colors are available... As soon as black is back in stock Im on the canfield, Ill use the tall bxr crown and slacken the HA a bit while lowering hte bars with his stem... SO win/win
What colors do they come in? Ive only seen black.
Blue, gold, ??,?? cant remember I think there was like 3 colors. I wouldnt mind blue if it were a darker blue.
We have gold, lt blue and XTR grey. These shots where pre laser etching.
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.......mmmmmm anyone want a Blue Twenty6 DM Stem?
That Canfield Blue DM is sexxxxxy!
WTH Lance you guys holding out on the colors LOL I wasnt even aware you guys had additional colors till I chatted with C last night...
Exactly what I was thinking LOL...........mmmmmm anyone want a Blue Twenty6 DM Stem?
Man, I don't know how much of that is the stem's fault. I mean, you are riding a Banshee - I doubt 26 designed their stems to go 20 feet to flat off of a skinny.the twenty6 sucks... i broke TWO of them - each one crash each.. first one got warrantied and got the 2nd one, which cracked in three places.
my truvativ direct mount stem has taken way harder spills and hasnt budged a millimeter.
Wow, If that ain't
I don't know what is. so pro