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#1
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handlebar
On steel frame bikes, what material are
handlebars typically made of? It seems lighter and more shiny than the frame, but perhaps this is a property of the coating and/or the steel itself rather than indicative of another material altogether? Is the handlebar the most safety-critical part of the bike? I have seen several brake but this never happened to me nor did I ever sense any inclination it would. Is this because of other people's more aggressive riding style or do they have thinner handlebar pipes, or pipes in softer material? -- underground experts united http://user.it.uu.se/~embe8573 |
#2
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handlebar
Hi,
On Tuesday, 09 January at 01:01, Emanuel Berg wrote: On steel frame bikes, what material are handlebars typically made of? they are typically made of aluminium. One bar, a straight one broke on me. I did hear prior to it breaking, creaking noises. Luckily I was slowing to a stop when it happened so I wasn't injured. It seems lighter and more shiny than the frame, but perhaps this is a property of the coating and/or the steel itself rather than indicative of another material altogether? Is the handlebar the most safety-critical part of the bike? I have seen several brake but this never happened to me nor did I ever sense any inclination it would. Is this because of other people's more aggressive riding style or do they have thinner handlebar pipes, or pipes in softer material? -- All the best Wim |
#3
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handlebar
On Tuesday, January 9, 2018 at 12:01:36 AM UTC, Emanuel Berg wrote:
On steel frame bikes, what material are handlebars typically made of? It seems lighter and more shiny than the frame, but perhaps this is a property of the coating and/or the steel itself rather than indicative of another material altogether? Is the handlebar the most safety-critical part of the bike? I have seen several brake but this never happened to me nor did I ever sense any inclination it would. Is this because of other people's more aggressive riding style or do they have thinner handlebar pipes, or pipes in softer material? -- underground experts united http://user.it.uu.se/~embe8573 Steel. I typically ride with North Road bars and have never even heard of such bars being made of aluminium. It seems likely to me that what Wim had was a specialty item. Andre Jute Not reckless |
#4
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handlebar
Andre Jute wrote:
Steel. I typically ride with North Road bars and have never even heard of such bars being made of aluminium. It seems likely to me that what Wim had was a specialty item. Is there a blacksmith trick to determine this on an actual handlebar? Here is a web page [1] that attempts to answer this question, and from skimming it I imagine this is the best answer: Take one piece of aluminium and one piece of stainless steel and hold it in ur hand - they must be the same size, you can feel the weight different: aluminium is much lighter, while stainless is much heavier. Or a simple test, take a needle file, just file on the aluminium and you see that aluminium material can be removed easily by filing away with a needle file while stainless is much harder and you can't file and remove any material on that piece of stainless steel, in short stainless is the heavier and harder material and aluminium is the lighter and easily deformed material. [1] http://www.engineering.com/Ask/tabid...0/Default.aspx -- underground experts united http://user.it.uu.se/~embe8573 |
#5
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Just tap the bar with your fingernail. Ali sounds duller than steel. Ali also looks duller than steel. Ali will also display a thicker wall than steel. Finally, it is very likely that an Ali handlebar will have a larger diameter than a steel 'bar.
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#6
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handlebar
On 10/01/18 09:05, Andre Jute wrote:
Just tap the bar with your fingernail. Ali sounds duller than steel. Ali also looks duller than steel. Ali will also display a thicker wall than steel. Finally, it is very likely that an Ali handlebar will have a larger diameter than a steel 'bar. Going to make fitting that stem a long Sunday afternoon job! |
#7
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handlebar
On Wednesday, January 10, 2018 at 2:38:52 AM UTC+1, Emanuel Berg wrote:
Andre Jute wrote: Steel. I typically ride with North Road bars and have never even heard of such bars being made of aluminium. It seems likely to me that what Wim had was a specialty item. Is there a blacksmith trick to determine this on an actual handlebar? Here is a web page [1] that attempts to answer this question, and from skimming it I imagine this is the best answer: Take one piece of aluminium and one piece of stainless steel and hold it in ur hand - they must be the same size, you can feel the weight different: aluminium is much lighter, while stainless is much heavier. Or a simple test, take a needle file, just file on the aluminium and you see that aluminium material can be removed easily by filing away with a needle file while stainless is much harder and you can't file and remove any material on that piece of stainless steel, in short stainless is the heavier and harder material and aluminium is the lighter and easily deformed material. [1] http://www.engineering.com/Ask/tabid...0/Default.aspx -- underground experts united http://user.it.uu.se/~embe8573 Use a magnet. Lou |
#9
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handlebar
On Wednesday, January 10, 2018 at 4:46:01 PM UTC, Frank Krygowski wrote:
But unlike aluminum ones, stainless steel bars are very rare, if not nonexistent. Here you go, Franki-boy. First link that comes up on Google throws out a whole lot of stainless steel handlebars offered on Ebay, and since I had Scharfie's favorite page open, here's a bunch of stainless handlebars you can buy in bulk to set yourself up as a bling dealer -- https://www.alibaba.com/showroom/sta...andlebars.html -- or buy just one on Aliexpress to educate yourself. I chuckled at your "non-existent" stainless steel bars. It's so dumb, nobody will believe it. I have two stainless steel handlebars on bikes in the loft, and probably more in boxes of components. One I chose from the Humpert catalogue to be fitted to my Utopia Kranich as a temporary measure just to see how I liked something different from my normal North Road Bars. In Europe Humpert bars are the mainstream for upscale bikes, and they're nutters for testing components. If they list stainless bars, you may be absolutely certain there is nothing wrong with stainless bars. You should check your facts, Franki-boy. Andre Jute Always happy to help PS The Humpert catalogue also comes in English if you don't speak German. |
#10
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On Wed, 10 Jan 2018 02:38:48 +0100, Emanuel Berg
wrote: Take one piece of aluminium and one piece of stainless steel and hold it in ur hand - they must be the same size, you can feel the weight different: aluminium is much lighter, while stainless is much heavier. It depends on the type of stainless steel. Exotic alloys, complex heat treatment, and a lengthy annealing process, will produce a stainless steel that is quite strong and suitable for bicycle frames (and by implication, handlebars): http://www.kvastainless.com/tubing-info.html http://www.kvastainless.com/bicycles/ http://www.kvastainless.com/technical-library.html The problem is that while steel is fairly cheap, the necessary elements needed to make stainless (nickel, chromium, vanadium, silicon, manganese, phosphor, sulfur, etc) will raise the cost. As an added bonus, stainless work hardens very easily, making fabrication difficult and expensive. http://www.qtstools.com/TechInfo/SAE%20steel%20grades.htm Ferro-chrome ore (which contains about 50-75% chromium), sells for $2.80/kg (Oct 2017 prices). http://www.infomine.com/investment/metal-prices/ferro-chrome/ while iron ore runs about $0.30/kg. http://www.infomine.com/investment/metal-prices/iron-ore-fines/ Very roughly, that would make 20% Chromium stainless cost about $5.00/kg, while a simple high carbon steel, would be about 1/10th the prices of stainless. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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