Aluminum drop bars... And corrosion.
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Aluminum drop bars... And corrosion.
Am I being a Nervous Nancy for leaning towards the idea that these bars should be retired to the shelf?
Last edited by deux jambes; 05-26-20 at 08:42 PM.
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Non omnino gravis
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Yea. Screw it. I still have a few teeth left, and I’d like to keep ‘em. So...
Reducing the avoidable, unfortunate accident risk factor!
Just pulled the trigger on a nice looking set of 3ttt Competizione TDF bars. They’ll provide a more comfortable bend, they’ll actually match the stem, AND...
I won’t have to second guess them while riding!
Reducing the avoidable, unfortunate accident risk factor!
Just pulled the trigger on a nice looking set of 3ttt Competizione TDF bars. They’ll provide a more comfortable bend, they’ll actually match the stem, AND...
I won’t have to second guess them while riding!
Last edited by deux jambes; 05-27-20 at 12:41 AM.
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Haven't seen pitting that bad and deep on an aluminum drop bar.
Was the bike maybe owned by a triathlete that had to swim in ocean water before the bike stage?
Not sure but the deep pitting might develop into cracks.
Bars in much better used condition are pretty cheap and live teeth are not replaceable....... I suggest you replace it as soon as you can...
Was the bike maybe owned by a triathlete that had to swim in ocean water before the bike stage?
Not sure but the deep pitting might develop into cracks.
Bars in much better used condition are pretty cheap and live teeth are not replaceable....... I suggest you replace it as soon as you can...
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After posting, I had that thought, “If you have to ask, then you already know.” Took a trip on over to eBay and purchased a good set of bars.
Last edited by deux jambes; 05-27-20 at 12:42 AM.
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Unsafe at any speed!
Aluminum and materials like CFRP (Carbon Fiber Reinforced Plastic) and even titanium to a lesser degree are susceptible to catastrophic failure caused by minor surface damage like nicks and scratches.
This is especially so since many the products made from those materials employ cutting edge design technology utilizing material properties such as weight reduction.
deux jambes Those bars appear to have been exposed to a corrosive atmosphere such as salt air or have may even been submerged. Also it appears that there could be some surface delamination caused by flaws in the aluminum billet that the tubing was drawn from.
In any case, the aluminum alloys used in a lot of the low cost bars BITD, especially during the bike boom era were low strength. They started to sag or droop after a few years of hard riding ending up in unexpected catastrophic failure!
Bars like these should be IMMEDIATELY replaced and preferably cut in half so that no one can try to reuse them!
verktyg
This is especially so since many the products made from those materials employ cutting edge design technology utilizing material properties such as weight reduction.
deux jambes Those bars appear to have been exposed to a corrosive atmosphere such as salt air or have may even been submerged. Also it appears that there could be some surface delamination caused by flaws in the aluminum billet that the tubing was drawn from.
In any case, the aluminum alloys used in a lot of the low cost bars BITD, especially during the bike boom era were low strength. They started to sag or droop after a few years of hard riding ending up in unexpected catastrophic failure!
Bars like these should be IMMEDIATELY replaced and preferably cut in half so that no one can try to reuse them!
verktyg
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Cut them into small fun shapes and make a wind-chime with a faulty chain-ring/freewheel and a piece of broken frame!
THat would be an interesting handlebar to use with a Viscount fork and a Modolo stem!
THat would be an interesting handlebar to use with a Viscount fork and a Modolo stem!
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A hacksaw and the cut-up shards buried deep in the garbage. That is the correct plan.
I volunteer at a high-volume bike Co-op. Please do not donate your crashed or corroded bars to your Co-op. In fact, I would just cut them up and discard them at home, because even if we chuck them into metal recycling, there is a good chance someone will pull them out for use, or flip them on Craigslist.
Personally, after surviving bars broken during a ride, on my personal bikes I no longer install second-hand bars, no matter how they look or feel. Only brand new bars right out of the wrapper.
And, I do not trust carbon bars of questionable origin, such as through Ebay, Craigslist, AliExpress, etc. Only bars right from a brand name sourced through official channels, so I can trace the pedigree of the product from factory to wholesaler. Lots and lots of fakes out there, even being sold retail.
I volunteer at a high-volume bike Co-op. Please do not donate your crashed or corroded bars to your Co-op. In fact, I would just cut them up and discard them at home, because even if we chuck them into metal recycling, there is a good chance someone will pull them out for use, or flip them on Craigslist.
Personally, after surviving bars broken during a ride, on my personal bikes I no longer install second-hand bars, no matter how they look or feel. Only brand new bars right out of the wrapper.
And, I do not trust carbon bars of questionable origin, such as through Ebay, Craigslist, AliExpress, etc. Only bars right from a brand name sourced through official channels, so I can trace the pedigree of the product from factory to wholesaler. Lots and lots of fakes out there, even being sold retail.
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That's actually a beautiful bar...it would make a good wall design as well...hmmm...
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Save the panto center section, stick a cork in each end and use it as a spare small hardware/parts tube in your tool kit.
(That's a nice Millers Falls hacksaw by the way)
: Mike
(That's a nice Millers Falls hacksaw by the way)
: Mike
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Last edited by Nemosengineer; 05-27-20 at 08:22 PM.
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Speaking of... I have a bike (2, in fact) that have these beautiful leather stitched Almarc handlebars. Now I wonder what the Cinelli bars underneath may look like
#16
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Yeah, that's a donor for a Texas or Midwestern wind chime. We don't need any alerts until it's over 30 mph. Up to that point it's just a normal day. But if I heard a drop bar wind chime clanging out in the garden I'd know to roll over and go back to sleep. No bike sailing today.
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Drill a hole in them and hang them up on the wall, they make good air hose holders, tire hangers, coat racks, etc.
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They'd go nicely with my Bottecchia wall art!
Hang a bike on a pallet wall!
Hang a bike on a pallet wall!
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 1982 AD SLE, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super
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My old garage had dozens of old steel bars screwed to the wall and rafters for hanging tires, rim hoops, hoses, rim strips, wheels, and the occasion bike. When i moved it took me two days to take down all the things I screwed to the walls and overhead floor joists. (Not to mention the 350 bikes and truck load of parts I had accumulated. These days I think I've got the bikes and parts narrowed down to maybe one big Uhaul load or two trips with my 24ft enclosed car trailer.
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Exactly! I am a big fan of pallets with iron pipe crafting!
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1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 1982 AD SLE, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super
1987 Crest Cannondale, 1987 Basso Gap, 1992 Rossin Performance EL, 1990ish Van Tuyl, 1985 Trek 670, 1982 AD SLE, 2003 Pinarello Surprise, 1990ish MBK Atlantique, 1987 Peugeot Competition, 1987 Nishiki Tri-A, 1981 Faggin, 1996 Cannondale M500, 1984 Mercian, 1982 AD SuperLeicht, 1985 Massi (model unknown), 1988 Daccordi Griffe , 1989 Fauxsin MTB, 1981 Ciocc Mockba, 1992 Bianchi Giro, 1977 Colnago Super
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I posted about it at the time - https://www.bikeforums.net/general-c...ke-my-bar.html
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Speaking of cutting the bars in half, I once found an old French bike at the dump.
Started to tear it down, and found the two halves of the bars were simply clamped in the stem.
I had visions of someone having difficult threading the bars through the stem, and finding this "solution."
Started to tear it down, and found the two halves of the bars were simply clamped in the stem.
I had visions of someone having difficult threading the bars through the stem, and finding this "solution."