Taipei Cycle Show 2011
- Thread starter frango
- Start date
Not even of shadows?Answer Products is on the move to make some new stuff look out for them in the future! No pictures sorry
...and... first info is here
http://www.pinkbike.com/news/Pinkbike-in-Taiwan.html
http://www.pinkbike.com/news/Pinkbike-in-Taiwan.html
and some sweet new cranksI've been told, that FSA - Gravity is going to introduce carbon flatbar, about 740mm wide for DH
That's the handlebar I talked about
http://www.pinkbike.com/photo/6306984/
It's 740mm wide, 10*/4* I can't wait for it
And some other info
http://mikelevy.pinkbike.com/album/Taiwan/
http://larock.pinkbike.com/album/Taiwan/
http://www.pinkbike.com/photo/6306984/
It's 740mm wide, 10*/4*
I can't wait for it And some other info
http://mikelevy.pinkbike.com/album/Taiwan/
http://larock.pinkbike.com/album/Taiwan/
Ask and you shall receiveThat's the handlebar I talked about
http://www.pinkbike.com/photo/6306984/
It's 740mm wide, 10*/4*
And some other info
http://mikelevy.pinkbike.com/album/Taiwan/
http://larock.pinkbike.com/album/Taiwan/
notbad looking dm (apart from the carbon bar shearing non radiused edges of course):
no rise, only 740mm
I am only 170cm high, so it seems perfectly wide for me
No rise is good. It gives you more room for adjustment. I run a flat bar and for local tracks a slack ha requires a very low bar height but when I go into the steeps I can always use spacers under the crown. If I had a riser Id have less options. Though yeah its flat so its not cool.
I'm hung up on how they're claiming that stem is 118 grams...that's lighter than the point one stem, which appears to have way less material...sketchy
Flat bar = fail
740mm = fail
Carbon handlebars for DH = FAIL! And I don't want get into an argument about why, they just are. Handlebars are the very very very last component on a DH bike that should be carbon. Actually scratch that, handlebars on a DH bike should never be carbon. No matter what the marketing bull**** says.
Unless you don't actually like your teeth/face/life of course, in which case by all means go ahead.
maybe it's made out of softanium just like their Gravity Light cranks?
What are you thoughts on carbon fibre F1 suspension thats subjected to 6G loads a few thousand times every race?
and the well informed opinions start.
i've used carbon bars for DH before, not a single issue. Would use 'em again too.
A buddy of mine from college - major hucker - used to run carbon bars. if a part could be broken, he was the one to do it. I watched him do ~25-30 foot drops while using carbon bars. not a single issue.e
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*rolls eyes*
are you afraid the carbon will fail, snap, and you shall smack your face on your stem? hmmm that sounds awfully familiar to another material used in handlebars, aluminum.
serious, if you want no risk, use steel bars, other wise carbon is fine.
serious, if you want no risk, use steel bars, other wise carbon is fine.
They are a completely different components designed to do completely different things. F1 suspension does not have a load of sharp edged components bolted to it at varying degrees of monkey tightened torques and then loaded in bending with dirt and grit and crash scrapes all over them. F1 suspension is designed to handle the loads it sees very specifically. It is only loaded at the ends through carefully designed bonded joints.
I'm sure there will be plenty of people who will say "i've been using carbon bars for ages with no issue..." Of course, you won't get an issue or any warning of an issue until one day, JRA, and then BANG. Ooops...
Seriously. I study the failure of carbon composites for a living (in F1 thankyou very much)! I will NEVER run a carbon bar for DH riding.
A handle bar is a very specific component whose conditions of use (and abuse) are in no way ideal for the vulnerabilities of this material. It's almost like, 'What's the worst way to load a light weight carbon tubular beam?' - just bolt some square edged metal parts to it, get some tiny bits of dirt under there, a few scratches and then repeatedly load it (and sometimes hucking overload it) at the ends whilst being supported in the middle by another big metal square edged clamp. See what happens....
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if you worked for STR, i wouldnt believe you
and the well informed opinions start.
hahahaha...if there are any two people to listen to as far as carbon construction go (at least on this message bored), #1 would be gridds and #2 would be BCD. #3 might be the guy who built the tramantine or whatever, and then maybe crazy aaron@lahar if he's not too methed out.*rolls eyes*
*laughs* Ha Ha. Unidirectional carbon is by far the most fragile type of carbon composite there is. And mating aluminium to carbon is another massive can of worms....
A decent shot peened aluminium bar is far more durable than carbon. Aluminium will yield locally around the stress risers of square edged clamps to reduce the stress concentration. Carbon, by it's purely elastic nature, cannot do this - the stress riser will always be there.
Anyway, you all go ahead and buy unnesessary, overpriced accidents waiting to happen. Idiots.
You say that but the 'suspension' failure i believe you're referring to was actually a complete failure of the metal uprights - a pure case of poor design.if you worked for STR, i wouldnt believe you
And no (as you know), I don't work for STR.
Yes the variation of clamping force is a negative for sure. But come on, the forces we're talking about here are miniscule compared to F1 suspension arms. I know we're mostly talking compressive forces but there still must be huge to torsional forces too? But I don't really know, you tell me
woops. i thought those uprights were carbon as well.You say that but the 'suspension' failure i believe you're referring to was actually a complete failure of the metal uprights - a pure case of poor design.
And no (as you know), I don't work for STR.
But still - completely different structures doing completely different things.Yes the variation of clamping force is a negative for sure. But come on, the forces we're talking about here are miniscule compared to F1 suspension arms. I know we're mostly talking compressive forces but there still must be huge to torsional forces too? But I don't really know, you tell me
With carbon, huge and torsional forces are easy to cope with. Stress concetrations are not.
You need to be very careful with carbon. You can’t just say “it’s made of carbon… F1 cars and jet fighters are made of carbon too… it must be good”… Just doesn’t happen like that. There are a HUGE amount of variables in carbon structures, from correct design (vital) to material differences in lay up, ply count, resin matrix type, fibre type, weave style, cure cycles, combinations and permutations of all the above etc etc etc…
Just because F1 suspension is made of carbon in absolutely no way what-so-ever does it mean carbon bars will be good too. Not in the slightest.
Similarly with carbon frames. Design is key. Carbon IMO is an ideal material to build a frame from (see Carbon V10) but this does an entirely different job to a handle bar and you generally don’t go clamping metal stress risers around a highly loaded beam part on a frame do you?
Just because F1 suspension is made of carbon in absolutely no way what-so-ever does it mean carbon bars will be good too. Not in the slightest.
Similarly with carbon frames. Design is key. Carbon IMO is an ideal material to build a frame from (see Carbon V10) but this does an entirely different job to a handle bar and you generally don’t go clamping metal stress risers around a highly loaded beam part on a frame do you?
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Bike show thread, to carbon debate. 
ininformed opinion = fail. I used easton monkey lite for dh for 2.5 seasons. I crash all the time and Im sure I abused it more than most riders and they held fine. I mean bike landing to a direct rock hits - many times with no problems. I love the anti carbonz crowd. Get a calendar its not 2003.
I wouldnt trust a gravity bar though but I would trust any easton product.
As for flats - you are even further away from the truth than carbon. Congratss on never trying the product but having opinions on it. Way the go internet super hero.
did you read anything he said?
I love seeing new stuff but get pretty bored with everyone arguing over this stuff...
Mixed feelings on the bars...
Mixed feelings on the bars...
Yes. He has some points - there are many variables so it's hard to make a carbon dh bar but not impossible so there is no fail. Easton prooved him wrong. Talk to shop owners - they don't get crazy amounts of easton dh bars on warranty. I think even sanjuro confirmed it on rm.
norbar = fail.
I'm not an anti carbon internet superhero you bellend.
I'm an anti carbon DH handlebar Formula 1 Composites R&D Engineer.
All carbon bars will always seem fine, no probs.... until they fail. Suddenly. Without warning.
I'm not an anti carbon internet superhero you bellend.
I'm an anti carbon DH handlebar Formula 1 Composites R&D Engineer.
All carbon bars will always seem fine, no probs.... until they fail. Suddenly. Without warning.