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Lugged frame bikes that are brazed at a lower temperature does not ruin the strength of the tubing as much. Also the lugs extend back on to tubes as you say, so they spread the stress over a wider area to help prevent breakage. And yes I know-------------------that people that claim to know say the steel tubing of today is made to take the temps of fillet welding that is done these days. However I would venture to guess a brazed and lug frame would stand the stresses longer. Actually as I have posted elsewhere, I believe that mfg may be smoke screening about fillet welds and the supposed superior tubing, because robot welders can turn out a fillet welded frame much faster. Fast builds means more profit for the mfgs. Faster is not always better. |
Originally Posted by cyccommute
(Post 16792186)
You even have to hunt far and wide to find a production steel bike of good quality.
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Originally Posted by cyccommute
(Post 16794993)
That's one. I can name about a hundred aluminum bikes for each steel one you can bring up. And I'm much more likely to find a model in a store then you will for a Surly.
and the full range of aluminum bikes from the burliest and toughest to lightweight racing bikes are all on display at every bike store compare that to the one or two steel models you can expect to see or test ride |
Originally Posted by cyccommute
(Post 16794993)
That's one. I can name about a hundred aluminum bikes for each steel one you can bring up. And I'm much more likely to find a model in a store then you will for a Surly.
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Originally Posted by FastJake
(Post 16796839)
If you're buying new, sure. But if you're looking used, steel bikes were made exclusively for many decades. I have a few steel bikes. Not necessarily by choice, but because it was the cheapest/most available bike to fit my needs. I also have a few aluminum and a couple carbon fiber bikes.
with the exception of carbon your fleet sounds like mine but nowadays when buying used the ratio of steel to aluminum available is steadily rising because while steel was just about the only game in town twenty five + years ago by fifteen years ago bike shop bikes were almost exclusively aluminum |
Originally Posted by cyccommute
(Post 16790069)
I doubt that the steel frame made any noise prior to failure. I've broken steel frames (2 but one of them multiple times) as well as many steel parts (mostly spokes). None of them have given any notice of impending failure that I could detect but that is the nature of steel. Because it a strong, stiff material, a crack can propagate though the bulk of the material and still be strong enough to withstand forces placed on it without moving.
I would almost bet that the aluminum bike make some creaking noises that you couldn't pin down prior to failure. In your case it was probably a bottom bracket creak. I've broken 2 aluminum frames and many aluminum parts (rims mostly). Only one of them was a true "failure" of the frame while the other one was due to a large setback on the saddle that cracked the seat tube. The former cracked at the bottom bracket bridge and was a materials problem covered by warranty. However, as was the case with all the aluminum parts I've broken, the frame creaked and groaned for a long time before I noticed the cracks at the welds. The rims I've broken and the cranksets I've broken have all creaked and groaned before failure. Again, that is the nature of aluminum. Aluminum isn't nearly as stiff nor as strong and it will flex under load. A crack will open and close with the force cycle its experiencing and send out a resonance which we hear as a creaking noise. I didn't mention it before, but there was definitely a creaking noise that I couldn't pin down towards the end of last year's season. I checked almost every potential source of creaking besides the frame itself. I remember thinking it was coming from the bottom bracket area too (tried reseating the cranks), and that's right near where the weld failed. I agree there was probably a crack there late last season, I just wasn't looking for it. I've had various creaks in the past that were due to lack of grease issues (seatpost, stem, etc.) and even improperly-seated wheels, so I didn't think it was something as serious as a frame crack. When the weather turned bad, I stopped riding and forgot about the creak. My first ride this season was when the chainstay snapped. Haha, if it hadn't, I probably would have been posting a thread titled "Unknown source of creaking" and I'm sure a bunch of people would have linked to Sheldon's page about creaks.
Originally Posted by cyccommute
(Post 16790069)
Standing straight up while out of the saddle is the least efficient way to climb hills. I had a steel touring bike that I had to climb out of the saddle that way. If I tried to throw the bike from side to side with a touring load, the bike would wander all over the road. My aluminum touring bike is stiffer and allows me to stand and throw the bike from side to side as I climb and it is much more efficient when climbing. I've had the same (frustrating) experience with tandems and find it an extremely inefficient way to climb out of the saddle. If standing straight up and pedaling out of the saddle were more efficient, that's the way the pros would do it.
You'll see plenty of pro riders going off-saddle. Granted, in many cases it's to initiate a breakaway or attack, but many times you'll see them just cranking away off the saddle. It could be to work different muscle groups or relax the groin region. Besides the thrill of attacking a hill, I am also going off the saddle for these reasons.
Originally Posted by cyccommute
(Post 16790069)
vega2614's problem isn't with his climbing style or his usage but was a material and construction problem...mostly construction. Keep riding aluminum, vega2614. You don't have to be consigned to the steel ghetto.
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Originally Posted by FastJake
(Post 16796839)
If you're buying new, sure. But if you're looking used, steel bikes were made exclusively for many decades. I have a few steel bikes. Not necessarily by choice, but because it was the cheapest/most available bike to fit my needs. I also have a few aluminum and a couple carbon fiber bikes.
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Originally Posted by vega2614
(Post 16799237)
It is amazing how spot on this analysis is. Have you been following me on my rides? :)
I didn't mention it before, but there was definitely a creaking noise that I couldn't pin down towards the end of last year's season. I checked almost every potential source of creaking besides the frame itself. I remember thinking it was coming from the bottom bracket area too (tried reseating the cranks), and that's right near where the weld failed. I agree there was probably a crack there late last season, I just wasn't looking for it. I've had various creaks in the past that were due to lack of grease issues (seatpost, stem, etc.) and even improperly-seated wheels, so I didn't think it was something as serious as a frame crack. When the weather turned bad, I stopped riding and forgot about the creak. My first ride this season was when the chainstay snapped. Haha, if it hadn't, I probably would have been posting a thread titled "Unknown source of creaking" and I'm sure a bunch of people would have linked to Sheldon's page about creaks.
Originally Posted by vega2614
(Post 16799237)
Yes, less efficient, but in many cases more effective for certain reasons. As I'm sure you know, you can get a significant increase in power by going off saddle. In most cases I am climbing for maybe 2 minutes tops so I'm not worried about efficiency, and I get up the hill a lot faster. For long duration hills, yes, I usually spin most of the way, intermixed with off saddle riding. Aside: when I did TOMRV in 2011, there was a guy that did the entire double century ride with no saddle.
You'll see plenty of pro riders going off-saddle. Granted, in many cases it's to initiate a breakaway or attack, but many times you'll see them just cranking away off the saddle. It could be to work different muscle groups or relax the groin region. Besides the thrill of attacking a hill, I am also going off the saddle for these reasons.
Originally Posted by vega2614
(Post 16799237)
Music to my ears. Hopefully the warranty replacement carbon frame will stay together. I've since switched the towing duties to an old aluminum Trek mountain bike.
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Originally Posted by cyccommute
(Post 16799897)
I think you are misunderstanding what I said above. I wasn't saying that you shouldn't stand up on climbs. Only that trying to pedal with the bike kept vertical underneath you is not the best way to climb out of the saddle. I throw the bike from side-to-side as I ride out of the saddle. I've had to ride where I couldn't throw the bike from side-to-side and I've never found it to be effective nor efficient.
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