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  #21  
Old May 25th 21, 10:32 PM posted to rec.bicycles.tech
Tom Kunich[_4_]
external usenet poster
 
Posts: 2,196
Default Airborne

On Tuesday, May 25, 2021 at 11:29:35 AM UTC-7, AMuzi wrote:
On 5/25/2021 12:57 PM, Tom Kunich wrote:
On Tuesday, May 25, 2021 at 10:38:10 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 9:58:10 AM UTC-7, wrote:
On Friday, May 21, 2021 at 3:00:04 PM UTC-7, jbeattie wrote:
On Friday, May 21, 2021 at 2:00:40 PM UTC-7, wrote:
Received the Airborne and have started assembly. The Drive Side cup won't start though the threads look perfectly OK.
Are you screwing it in the right way? It is ISO left hand thread. The fact that it is a Ti BB shouldn't make it harder to screw in the cups unless the threads are munged. You'll need anti-seize with aluminum cups going into Ti.
The Airborne has a BRC Profile Designs fork on it and it looked like it was left out in the sun for a long time and the finish was flaking off of it. This didn't give me a great deal of confidence in it so I ordered a new identical fork. This will mean I have to remove the lower fork race and install it on the new fork. These fork headset bearings were made by Airborne and they feel like new so I'm confident in the rest of the bike as well. Oh, wait, some of the nutcases here think that the titanium is "worn out" and suffering from metal fatigue. Without knowing a single thing about the history of the bike mind you. This is a demonstration of the quality of thinking here.
Oh, wait, some of the nutcases think you got into the way-back machine and bought a discount Ti bike (with a documented history of failures) with a 1" steerer fork for no apparent reason except maybe some compulsive disorder. Now you're going to end up with a 21 year old POS with a NOS Profile fork -- and you mis-ordered your crank, so that has to go back. More work to get a simple part for an ISO threaded BB bike that will be worth whatever parts you put on it.

One hopes you don't bend the crown bearing seat taking that off and have to go rummaging around for a 1" replacement. This is like Mr. Magoo does bikes -- humorous but at the same time scary.


So you just proved my comments. Good job Jay. Tell us what is wrong with a 1" fork shaft. They were only increased in side so that they could use carbon shafts with reasonable reliability. Then the tapered shafts were invented purely so that they could make them even lighter.

It isn't a very good idea to put anti-seize on aluminum cups since that material contains several different kinds of metals in them that can react with aluminum. Phil Wood grease works as well as anything.

And for your information ALL bikes have histories of failure. There is NO bike that hasn't failed unless so far overbuilt that it is almost impossible to climb with. You know better than that so stop trying the argue about things you know are silly.

Do add molybdenum paste between aluminum and titanium. They
are otherwise very reactive together:

http://www.yellowjersey.org/photosfr...st/PARDOOX.JPG

Note the heaved/bulged end of that titanium tube. There's a
fat smear of Loctite filler inside it.


This only occurs in the presence of an electrolyte - salt water or acid solutions
Ads
  #22  
Old May 25th 21, 10:52 PM posted to rec.bicycles.tech
Tom Kunich[_4_]
external usenet poster
 
Posts: 2,196
Default Airborne

On Tuesday, May 25, 2021 at 11:35:28 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 10:57:23 AM UTC-7, wrote:
On Tuesday, May 25, 2021 at 10:38:10 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 9:58:10 AM UTC-7, wrote:
On Friday, May 21, 2021 at 3:00:04 PM UTC-7, jbeattie wrote:
On Friday, May 21, 2021 at 2:00:40 PM UTC-7, wrote:
Received the Airborne and have started assembly. The Drive Side cup won't start though the threads look perfectly OK.
Are you screwing it in the right way? It is ISO left hand thread. The fact that it is a Ti BB shouldn't make it harder to screw in the cups unless the threads are munged. You'll need anti-seize with aluminum cups going into Ti.
The Airborne has a BRC Profile Designs fork on it and it looked like it was left out in the sun for a long time and the finish was flaking off of it. This didn't give me a great deal of confidence in it so I ordered a new identical fork. This will mean I have to remove the lower fork race and install it on the new fork. These fork headset bearings were made by Airborne and they feel like new so I'm confident in the rest of the bike as well. Oh, wait, some of the nutcases here think that the titanium is "worn out" and suffering from metal fatigue. Without knowing a single thing about the history of the bike mind you. This is a demonstration of the quality of thinking here.
Oh, wait, some of the nutcases think you got into the way-back machine and bought a discount Ti bike (with a documented history of failures) with a 1" steerer fork for no apparent reason except maybe some compulsive disorder. Now you're going to end up with a 21 year old POS with a NOS Profile fork -- and you mis-ordered your crank, so that has to go back. More work to get a simple part for an ISO threaded BB bike that will be worth whatever parts you put on it.

One hopes you don't bend the crown bearing seat taking that off and have to go rummaging around for a 1" replacement. This is like Mr. Magoo does bikes -- humorous but at the same time scary.


So you just proved my comments. Good job Jay. Tell us what is wrong with a 1" fork shaft. They were only increased in side so that they could use carbon shafts with reasonable reliability. Then the tapered shafts were invented purely so that they could make them even lighter.

Uh, isn't this about resale? So now you have a heavy aluminum steerer fork that takes a 1" stem, spacers, top-cap star nut, etc., etc. You're locked into 2000 technology. It may work fine, but why? Where is the market?

Airborne was a discount brand to start, and if I were going to buy a discount Ti frame, I'd just wait for one over at Bikes Direct. Get a hydo-disc Ultegra Ti bike for $2,500. http://www.bikesdirect.com/products/...road-bikes.htm What are you going to sell your time-capsule for? Will it have Ultegra level equipment on it? Discs? Through-axles and (cheapish) DT Swiss wheels?

It isn't a very good idea to put anti-seize on aluminum cups since that material contains several different kinds of metals in them that can react with aluminum. Phil Wood grease works as well as anything.

Wrong. I'd use copper Ti prep to avoid reaction and because it is more robust and likely to stop BB cup creaking. Grease will work, but not as well.
And for your information ALL bikes have histories of failure. There is NO bike that hasn't failed unless so far overbuilt that it is almost impossible to climb with. You know better than that so stop trying the argue about things you know are silly.

https://www.roadbikereview.com/threa...-crack.351086/ Assuming any of my bikes broke, I can go back to the manufacturer. Your manufacturer is long gone.


You notice that that crack started in a weld don't you? And assuming that YOUR bike fails, it it more likely to be a catastrophic failure than a metal bike that gives plenty of warning. This isn't something I'm razing you about - we can see these failures all over the Internet. Carbon Fiber simply doesn't last a long time because even Look or Time frames are known to break and these are the ones that made special efforts for reliability which isn't done for most frames. Now, one "fix" is to replace your frame and such every couple of years. The cost of Chinese frames is now so low that you could do this. What's more, all of the Carbon Fiber bikes are using the same geometry so the only difference between them is the name tag. And they are all made in China anyway. My Colnago CLX3.0 is absolutely a great bike. So Why not pay $500 for a new one with a different name on it? TriFox X10 is $500 for a complete frameset and Hambini has been inspecting it and thinks that it looks better than most CF bikes.
  #23  
Old May 25th 21, 10:56 PM posted to rec.bicycles.tech
Tom Kunich[_4_]
external usenet poster
 
Posts: 2,196
Default Airborne

On Tuesday, May 25, 2021 at 12:00:19 PM UTC-7, sms wrote:
On 5/25/2021 11:35 AM, jbeattie wrote:

snip
Airborne was a discount brand to start, and if I were going to buy a discount Ti frame, I'd just wait for one over at Bikes Direct. Get a hydo-disc Ultegra Ti bike for $2,500. http://www.bikesdirect.com/products/...road-bikes.htm What are you going to sell your time-capsule for? Will it have Ultegra level equipment on it? Discs? Through-axles and (cheapish) DT Swiss wheels?

Nice, other than the carbon fork. Ora, out of Taiwan, makes the frames
https://www.oraeng-tw.com/. But I'd probably go with a Habanero with
the All-City Super Professional CroMo Fork and a 105 groupset so I could
still get a triple.

While Titanium is a good material, there are so many possibilities for an error in construction that it is probably a bad idea to buy an el cheap producto in that material.
  #24  
Old May 25th 21, 11:53 PM posted to rec.bicycles.tech
John B.[_3_]
external usenet poster
 
Posts: 5,697
Default Airborne

On Tue, 25 May 2021 10:47:36 -0700 (PDT), Tom Kunich
wrote:

On Tuesday, May 25, 2021 at 10:34:48 AM UTC-7, Frank Krygowski wrote:
On 5/25/2021 12:58 PM, Tom Kunich wrote:
Oh, wait, some of the nutcases here think that the titanium is "worn out" and suffering from metal fatigue.

Nobody said that, Tom. If I'm wrong, give us a direct quote and a link.

You must spend time imagining debates in which you construct, then
demolish straw men.

What a sad way to attempt self-validation.


Frank, WHY was the subject even brought up? Because you and others wanted to imply that anything I got must be junk. So don't give me your crap as if it doesn't stink like the rest of your opinions.


Hey Tommy.says that nobody said that and challenged you to provide
proof, and what do you do? Well a logical person would go ahead and
provide the proof top prove their assertion by you? Nope you just
result to insults.

A strange world that you live in where insults serve as proof.
--
Cheers,

John B.

  #25  
Old May 26th 21, 04:46 PM posted to rec.bicycles.tech
JBeattie
external usenet poster
 
Posts: 5,870
Default Airborne

On Tuesday, May 25, 2021 at 2:53:01 PM UTC-7, wrote:
On Tuesday, May 25, 2021 at 11:35:28 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 10:57:23 AM UTC-7, wrote:
On Tuesday, May 25, 2021 at 10:38:10 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 9:58:10 AM UTC-7, wrote:
On Friday, May 21, 2021 at 3:00:04 PM UTC-7, jbeattie wrote:
On Friday, May 21, 2021 at 2:00:40 PM UTC-7, wrote:
Received the Airborne and have started assembly. The Drive Side cup won't start though the threads look perfectly OK.
Are you screwing it in the right way? It is ISO left hand thread. The fact that it is a Ti BB shouldn't make it harder to screw in the cups unless the threads are munged. You'll need anti-seize with aluminum cups going into Ti.
The Airborne has a BRC Profile Designs fork on it and it looked like it was left out in the sun for a long time and the finish was flaking off of it. This didn't give me a great deal of confidence in it so I ordered a new identical fork. This will mean I have to remove the lower fork race and install it on the new fork. These fork headset bearings were made by Airborne and they feel like new so I'm confident in the rest of the bike as well. Oh, wait, some of the nutcases here think that the titanium is "worn out" and suffering from metal fatigue. Without knowing a single thing about the history of the bike mind you. This is a demonstration of the quality of thinking here.
Oh, wait, some of the nutcases think you got into the way-back machine and bought a discount Ti bike (with a documented history of failures) with a 1" steerer fork for no apparent reason except maybe some compulsive disorder. Now you're going to end up with a 21 year old POS with a NOS Profile fork -- and you mis-ordered your crank, so that has to go back. More work to get a simple part for an ISO threaded BB bike that will be worth whatever parts you put on it.

One hopes you don't bend the crown bearing seat taking that off and have to go rummaging around for a 1" replacement. This is like Mr. Magoo does bikes -- humorous but at the same time scary.


So you just proved my comments. Good job Jay. Tell us what is wrong with a 1" fork shaft. They were only increased in side so that they could use carbon shafts with reasonable reliability. Then the tapered shafts were invented purely so that they could make them even lighter.

Uh, isn't this about resale? So now you have a heavy aluminum steerer fork that takes a 1" stem, spacers, top-cap star nut, etc., etc. You're locked into 2000 technology. It may work fine, but why? Where is the market?

Airborne was a discount brand to start, and if I were going to buy a discount Ti frame, I'd just wait for one over at Bikes Direct. Get a hydo-disc Ultegra Ti bike for $2,500. http://www.bikesdirect.com/products/...road-bikes.htm What are you going to sell your time-capsule for? Will it have Ultegra level equipment on it? Discs? Through-axles and (cheapish) DT Swiss wheels?

It isn't a very good idea to put anti-seize on aluminum cups since that material contains several different kinds of metals in them that can react with aluminum. Phil Wood grease works as well as anything.

Wrong. I'd use copper Ti prep to avoid reaction and because it is more robust and likely to stop BB cup creaking. Grease will work, but not as well.
And for your information ALL bikes have histories of failure. There is NO bike that hasn't failed unless so far overbuilt that it is almost impossible to climb with. You know better than that so stop trying the argue about things you know are silly.

https://www.roadbikereview.com/threa...-crack.351086/ Assuming any of my bikes broke, I can go back to the manufacturer. Your manufacturer is long gone.

You notice that that crack started in a weld don't you? And assuming that YOUR bike fails, it it more likely to be a catastrophic failure than a metal bike that gives plenty of warning. This isn't something I'm razing you about - we can see these failures all over the Internet. Carbon Fiber simply doesn't last a long time because even Look or Time frames are known to break and these are the ones that made special efforts for reliability which isn't done for most frames. Now, one "fix" is to replace your frame and such every couple of years. The cost of Chinese frames is now so low that you could do this. What's more, all of the Carbon Fiber bikes are using the same geometry so the only difference between them is the name tag. And they are all made in China anyway. My Colnago CLX3.0 is absolutely a great bike. So Why not pay $500 for a new one with a different name on it? TriFox X10 is $500 for a complete frameset and Hambini has been inspecting it and thinks that it looks better than most CF bikes.


As an FYI, talking to the people at Ruckus, typical CF non-crash related frame failure does not result in catastrophe or even a crash. Crash damage is a whole other thing. Non-crash related damage is caused by many things including user error like clamping top tubes or dropping objects on CF frames -- or chain suck. Fatigue failure and manufacturing error would be in there, too. I haven't handled a carbon failure case in over a decade, and none of my past cases involved frame failures. They involved forks -- and mostly non-defective forks and spurious claims (stuff caught in forks from sticks to dog leashes). I did some aluminum MTB frame cases with front end failures which resulted in a re-design and the use of gussets. With shock forks, you can really load-up the front end of a MTB. I also had a spate of shock-fork failure cases that did involve an assembly error.

I can understand the fear of CF forks because the consequence of a failure is dire. But considering the thousands of forks in use, the failure rate must be tiny. It would be helpful to get a real number and not hype one way or the other. I've been using CF forks since the early 90s (first generation Kestrel with a steel threaded steerer) and have had no problems, but a single data point isn't very helpful -- particularly if that data point is you.

-- Jay Beattie.

  #26  
Old May 26th 21, 04:57 PM posted to rec.bicycles.tech
Frank Krygowski[_4_]
external usenet poster
 
Posts: 10,538
Default Airborne

On 5/25/2021 1:47 PM, Tom Kunich wrote:
On Tuesday, May 25, 2021 at 10:34:48 AM UTC-7, Frank Krygowski wrote:
On 5/25/2021 12:58 PM, Tom Kunich wrote:
Oh, wait, some of the nutcases here think that the titanium is "worn out" and suffering from metal fatigue.

Nobody said that, Tom. If I'm wrong, give us a direct quote and a link.

You must spend time imagining debates in which you construct, then
demolish straw men.

What a sad way to attempt self-validation.


Frank, WHY was the subject even brought up?


Don't deflect. You're imagining things again, probably deliberately.

Admit that, or post the direct quote that you pretend you're responding to.

But you can't, of course.

--
- Frank Krygowski
  #27  
Old May 26th 21, 08:02 PM posted to rec.bicycles.tech
Tom Kunich[_4_]
external usenet poster
 
Posts: 2,196
Default Airborne

On Tuesday, May 25, 2021 at 3:53:09 PM UTC-7, John B. wrote:
On Tue, 25 May 2021 10:47:36 -0700 (PDT), Tom Kunich
wrote:

On Tuesday, May 25, 2021 at 10:34:48 AM UTC-7, Frank Krygowski wrote:
On 5/25/2021 12:58 PM, Tom Kunich wrote:
Oh, wait, some of the nutcases here think that the titanium is "worn out" and suffering from metal fatigue.
Nobody said that, Tom. If I'm wrong, give us a direct quote and a link.

You must spend time imagining debates in which you construct, then
demolish straw men.

What a sad way to attempt self-validation.


Frank, WHY was the subject even brought up? Because you and others wanted to imply that anything I got must be junk. So don't give me your crap as if it doesn't stink like the rest of your opinions.

Hey Tommy.says that nobody said that and challenged you to provide
proof, and what do you do? Well a logical person would go ahead and
provide the proof top prove their assertion by you? Nope you just
result to insults.

A strange world that you live in where insults serve as proof.


John, it is quite clear that you like Frank have personality disorders. Why else would anyone think that you can "prove" opinions? I suggest that as you're waiting to die, you think of the fire you're headed into.
  #28  
Old May 26th 21, 08:14 PM posted to rec.bicycles.tech
Tom Kunich[_4_]
external usenet poster
 
Posts: 2,196
Default Airborne

On Wednesday, May 26, 2021 at 8:46:03 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 2:53:01 PM UTC-7, wrote:
On Tuesday, May 25, 2021 at 11:35:28 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 10:57:23 AM UTC-7, wrote:
On Tuesday, May 25, 2021 at 10:38:10 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 9:58:10 AM UTC-7, wrote:
On Friday, May 21, 2021 at 3:00:04 PM UTC-7, jbeattie wrote:
On Friday, May 21, 2021 at 2:00:40 PM UTC-7, wrote:
Received the Airborne and have started assembly. The Drive Side cup won't start though the threads look perfectly OK.
Are you screwing it in the right way? It is ISO left hand thread. The fact that it is a Ti BB shouldn't make it harder to screw in the cups unless the threads are munged. You'll need anti-seize with aluminum cups going into Ti.
The Airborne has a BRC Profile Designs fork on it and it looked like it was left out in the sun for a long time and the finish was flaking off of it. This didn't give me a great deal of confidence in it so I ordered a new identical fork. This will mean I have to remove the lower fork race and install it on the new fork. These fork headset bearings were made by Airborne and they feel like new so I'm confident in the rest of the bike as well. Oh, wait, some of the nutcases here think that the titanium is "worn out" and suffering from metal fatigue. Without knowing a single thing about the history of the bike mind you. This is a demonstration of the quality of thinking here.
Oh, wait, some of the nutcases think you got into the way-back machine and bought a discount Ti bike (with a documented history of failures) with a 1" steerer fork for no apparent reason except maybe some compulsive disorder. Now you're going to end up with a 21 year old POS with a NOS Profile fork -- and you mis-ordered your crank, so that has to go back. More work to get a simple part for an ISO threaded BB bike that will be worth whatever parts you put on it.

One hopes you don't bend the crown bearing seat taking that off and have to go rummaging around for a 1" replacement. This is like Mr. Magoo does bikes -- humorous but at the same time scary.

So you just proved my comments. Good job Jay. Tell us what is wrong with a 1" fork shaft. They were only increased in side so that they could use carbon shafts with reasonable reliability. Then the tapered shafts were invented purely so that they could make them even lighter.
Uh, isn't this about resale? So now you have a heavy aluminum steerer fork that takes a 1" stem, spacers, top-cap star nut, etc., etc. You're locked into 2000 technology. It may work fine, but why? Where is the market?

Airborne was a discount brand to start, and if I were going to buy a discount Ti frame, I'd just wait for one over at Bikes Direct. Get a hydo-disc Ultegra Ti bike for $2,500. http://www.bikesdirect.com/products/...road-bikes.htm What are you going to sell your time-capsule for? Will it have Ultegra level equipment on it? Discs? Through-axles and (cheapish) DT Swiss wheels?

It isn't a very good idea to put anti-seize on aluminum cups since that material contains several different kinds of metals in them that can react with aluminum. Phil Wood grease works as well as anything.
Wrong. I'd use copper Ti prep to avoid reaction and because it is more robust and likely to stop BB cup creaking. Grease will work, but not as well.
And for your information ALL bikes have histories of failure. There is NO bike that hasn't failed unless so far overbuilt that it is almost impossible to climb with. You know better than that so stop trying the argue about things you know are silly.
https://www.roadbikereview.com/threa...-crack.351086/ Assuming any of my bikes broke, I can go back to the manufacturer.. Your manufacturer is long gone.

You notice that that crack started in a weld don't you? And assuming that YOUR bike fails, it it more likely to be a catastrophic failure than a metal bike that gives plenty of warning. This isn't something I'm razing you about - we can see these failures all over the Internet. Carbon Fiber simply doesn't last a long time because even Look or Time frames are known to break and these are the ones that made special efforts for reliability which isn't done for most frames. Now, one "fix" is to replace your frame and such every couple of years. The cost of Chinese frames is now so low that you could do this. What's more, all of the Carbon Fiber bikes are using the same geometry so the only difference between them is the name tag. And they are all made in China anyway. My Colnago CLX3.0 is absolutely a great bike. So Why not pay $500 for a new one with a different name on it? TriFox X10 is $500 for a complete frameset and Hambini has been inspecting it and thinks that it looks better than most CF bikes.

As an FYI, talking to the people at Ruckus, typical CF non-crash related frame failure does not result in catastrophe or even a crash. Crash damage is a whole other thing. Non-crash related damage is caused by many things including user error like clamping top tubes or dropping objects on CF frames -- or chain suck. Fatigue failure and manufacturing error would be in there, too. I haven't handled a carbon failure case in over a decade, and none of my past cases involved frame failures. They involved forks -- and mostly non-defective forks and spurious claims (stuff caught in forks from sticks to dog leashes). I did some aluminum MTB frame cases with front end failures which resulted in a re-design and the use of gussets. With shock forks, you can really load-up the front end of a MTB. I also had a spate of shock-fork failure cases that did involve an assembly error.

I can understand the fear of CF forks because the consequence of a failure is dire. But considering the thousands of forks in use, the failure rate must be tiny. It would be helpful to get a real number and not hype one way or the other. I've been using CF forks since the early 90s (first generation Kestrel with a steel threaded steerer) and have had no problems, but a single data point isn't very helpful -- particularly if that data point is you.


Jay, I too have been using carbon fiber forks, even after I had a failure because it was so obviously a quality control problem of the first order. I just bought a new Profile Designs 1" fork to replace the one on the Airborne which I couldn't trust because it obviously been left in direct sunlight which can degrade the resin. But catastrophic carbon fiber failures are common enough that we can't claim that they don't exist. And the older a CF bike is the more likely catastrophic failures are simply because the carbon fiber doesn't fail but the resin does. Now MOST bikes of this type are never ridden a lot and so I would consider them lifetime bikes. But all it takes is a void in the wrong spit and it can fail at any moment. Trek has developed their own process for maximum compression and I have doubts that they can ever have any serious voids, but most of the carbon fiber bikes are made in China and while they CAN have excellent quality control, they also have midnight bikes - those made after hours and sold as the real thing with less layers and little to no quality control. I was knocking on a Cervelo and you could HEAR the voids. Was it a Cervelo?
  #29  
Old May 26th 21, 08:30 PM posted to rec.bicycles.tech
Tom Kunich[_4_]
external usenet poster
 
Posts: 2,196
Default Airborne

On Wednesday, May 26, 2021 at 8:46:03 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 2:53:01 PM UTC-7, wrote:
On Tuesday, May 25, 2021 at 11:35:28 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 10:57:23 AM UTC-7, wrote:
On Tuesday, May 25, 2021 at 10:38:10 AM UTC-7, jbeattie wrote:
On Tuesday, May 25, 2021 at 9:58:10 AM UTC-7, wrote:
On Friday, May 21, 2021 at 3:00:04 PM UTC-7, jbeattie wrote:
On Friday, May 21, 2021 at 2:00:40 PM UTC-7, wrote:
Received the Airborne and have started assembly. The Drive Side cup won't start though the threads look perfectly OK.
Are you screwing it in the right way? It is ISO left hand thread. The fact that it is a Ti BB shouldn't make it harder to screw in the cups unless the threads are munged. You'll need anti-seize with aluminum cups going into Ti.
The Airborne has a BRC Profile Designs fork on it and it looked like it was left out in the sun for a long time and the finish was flaking off of it. This didn't give me a great deal of confidence in it so I ordered a new identical fork. This will mean I have to remove the lower fork race and install it on the new fork. These fork headset bearings were made by Airborne and they feel like new so I'm confident in the rest of the bike as well. Oh, wait, some of the nutcases here think that the titanium is "worn out" and suffering from metal fatigue. Without knowing a single thing about the history of the bike mind you. This is a demonstration of the quality of thinking here.
Oh, wait, some of the nutcases think you got into the way-back machine and bought a discount Ti bike (with a documented history of failures) with a 1" steerer fork for no apparent reason except maybe some compulsive disorder. Now you're going to end up with a 21 year old POS with a NOS Profile fork -- and you mis-ordered your crank, so that has to go back. More work to get a simple part for an ISO threaded BB bike that will be worth whatever parts you put on it.

One hopes you don't bend the crown bearing seat taking that off and have to go rummaging around for a 1" replacement. This is like Mr. Magoo does bikes -- humorous but at the same time scary.

So you just proved my comments. Good job Jay. Tell us what is wrong with a 1" fork shaft. They were only increased in side so that they could use carbon shafts with reasonable reliability. Then the tapered shafts were invented purely so that they could make them even lighter.
Uh, isn't this about resale? So now you have a heavy aluminum steerer fork that takes a 1" stem, spacers, top-cap star nut, etc., etc. You're locked into 2000 technology. It may work fine, but why? Where is the market?

Airborne was a discount brand to start, and if I were going to buy a discount Ti frame, I'd just wait for one over at Bikes Direct. Get a hydo-disc Ultegra Ti bike for $2,500. http://www.bikesdirect.com/products/...road-bikes.htm What are you going to sell your time-capsule for? Will it have Ultegra level equipment on it? Discs? Through-axles and (cheapish) DT Swiss wheels?

It isn't a very good idea to put anti-seize on aluminum cups since that material contains several different kinds of metals in them that can react with aluminum. Phil Wood grease works as well as anything.
Wrong. I'd use copper Ti prep to avoid reaction and because it is more robust and likely to stop BB cup creaking. Grease will work, but not as well.
And for your information ALL bikes have histories of failure. There is NO bike that hasn't failed unless so far overbuilt that it is almost impossible to climb with. You know better than that so stop trying the argue about things you know are silly.
https://www.roadbikereview.com/threa...-crack.351086/ Assuming any of my bikes broke, I can go back to the manufacturer.. Your manufacturer is long gone.

You notice that that crack started in a weld don't you? And assuming that YOUR bike fails, it it more likely to be a catastrophic failure than a metal bike that gives plenty of warning. This isn't something I'm razing you about - we can see these failures all over the Internet. Carbon Fiber simply doesn't last a long time because even Look or Time frames are known to break and these are the ones that made special efforts for reliability which isn't done for most frames. Now, one "fix" is to replace your frame and such every couple of years. The cost of Chinese frames is now so low that you could do this. What's more, all of the Carbon Fiber bikes are using the same geometry so the only difference between them is the name tag. And they are all made in China anyway. My Colnago CLX3.0 is absolutely a great bike. So Why not pay $500 for a new one with a different name on it? TriFox X10 is $500 for a complete frameset and Hambini has been inspecting it and thinks that it looks better than most CF bikes.

As an FYI, talking to the people at Ruckus, typical CF non-crash related frame failure does not result in catastrophe or even a crash. Crash damage is a whole other thing. Non-crash related damage is caused by many things including user error like clamping top tubes or dropping objects on CF frames -- or chain suck. Fatigue failure and manufacturing error would be in there, too. I haven't handled a carbon failure case in over a decade, and none of my past cases involved frame failures. They involved forks -- and mostly non-defective forks and spurious claims (stuff caught in forks from sticks to dog leashes). I did some aluminum MTB frame cases with front end failures which resulted in a re-design and the use of gussets. With shock forks, you can really load-up the front end of a MTB. I also had a spate of shock-fork failure cases that did involve an assembly error.

I can understand the fear of CF forks because the consequence of a failure is dire. But considering the thousands of forks in use, the failure rate must be tiny. It would be helpful to get a real number and not hype one way or the other. I've been using CF forks since the early 90s (first generation Kestrel with a steel threaded steerer) and have had no problems, but a single data point isn't very helpful -- particularly if that data point is you.


https://www.npr.org/2018/08/18/63982...f-counterfeits
  #30  
Old May 26th 21, 11:57 PM posted to rec.bicycles.tech
John B.[_3_]
external usenet poster
 
Posts: 5,697
Default Airborne

On Wed, 26 May 2021 12:02:35 -0700 (PDT), Tom Kunich
wrote:

On Tuesday, May 25, 2021 at 3:53:09 PM UTC-7, John B. wrote:
On Tue, 25 May 2021 10:47:36 -0700 (PDT), Tom Kunich
wrote:

On Tuesday, May 25, 2021 at 10:34:48 AM UTC-7, Frank Krygowski wrote:
On 5/25/2021 12:58 PM, Tom Kunich wrote:
Oh, wait, some of the nutcases here think that the titanium is "worn out" and suffering from metal fatigue.
Nobody said that, Tom. If I'm wrong, give us a direct quote and a link.

You must spend time imagining debates in which you construct, then
demolish straw men.

What a sad way to attempt self-validation.

Frank, WHY was the subject even brought up? Because you and others wanted to imply that anything I got must be junk. So don't give me your crap as if it doesn't stink like the rest of your opinions.

Hey Tommy.says that nobody said that and challenged you to provide
proof, and what do you do? Well a logical person would go ahead and
provide the proof top prove their assertion by you? Nope you just
result to insults.

A strange world that you live in where insults serve as proof.


John, it is quite clear that you like Frank have personality disorders. Why else would anyone think that you can "prove" opinions? I suggest that as you're waiting to die, you think of the fire you're headed into.


There you go Tommy talking changing the subject instead of answering
the question. Nobody was talking about "opinions" I wrote "prove their
assertion". Are you so ignorant that you thing that the word
"assertion" means "opinion"? For your benefit:

assertion ~ noun - a declaration that is made emphatically (as if no
supporting evidence were necessary)

Damn Tommy, you out to buy a dictionary and learn what all these big
words mean.
--
Cheers,

John B.

 




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