Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

Aluminum Frame Question

Notices
General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Aluminum Frame Question

Old 09-15-23, 01:03 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Apr 2017
Location: Kentucky
Posts: 89

Bikes: Tour Easy; Salsa Marrakesh

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
Liked 31 Times in 14 Posts
Aluminum Frame Question

I'm looking at a 2002 Cannondale R1000 CADD7. The bike was ridden very little with maybe 1,000 miles on it. Is it age/time that affect the frame, or would it depend on millage and stress? I can see no signs of stress or cracks in the frame.
Thanks
Irishred is offline  
Old 09-15-23, 01:07 PM
  #2  
Doesn't brain good.
 
base2's Avatar
 
Join Date: Jun 2015
Location: Pacific Northwest
Posts: 2,809

Bikes: 5 good ones, and the occasional project.

Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 1591 Post(s)
Liked 1,378 Times in 791 Posts
In the absence of xray or ultrasonic inspection, you'll never know about any cracks not visible to the naked eye. A magnifying glass and a bright light can be helpful.

You need not concern yourself with the unvisible. Ride it.
__________________
I shouldn't have to "make myself more visible;" Drivers should just stop running people over.

Car dependency is a tax.
base2 is online now  
Old 09-15-23, 01:45 PM
  #3  
Full Member
 
Join Date: Nov 2022
Location: California's capital
Posts: 234

Bikes: Litespeed Firenze, Spot Acme, Specialzed S Works Pro Race, Davidson Stiletto, Colnago Superissimo

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 77 Post(s)
Liked 132 Times in 79 Posts
Frame is fine, absent any obvious signs of a crash or other mistreatment. Even stored outdoors, an Al frame isn't particularly vulnerable to corrosive decay (other than near the ocean, then all bets are off). If this bike looks good throughout then it has been stored properly.

Have a '90s Al mtn bike that has been ridden a lot and is in great shape.

Good luck!
Rick_D is offline  
Old 09-15-23, 03:31 PM
  #4  
Full Member
 
Join Date: Dec 2004
Location: 20,000 leagues under the sea
Posts: 452

Bikes: 2019 CO-OP DRT 1.2, 2001 Trek 2200, 2021 Cannondale Topstone 1 Alloy

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 32 Post(s)
Liked 96 Times in 47 Posts
I ride a similar vintage Trek 2200 with an aluminum frame that was ridden quite a bit more than that C'dale. I'm also a borderline Clydesdale and have had no issues with my bike.
It really comes down to if there was something particularly jarring or stressing that happened to the frame. With that few miles on it, assuming nothing untoward happened in the past, it should last you many years to come.
Ubie is offline  
Old 09-15-23, 03:49 PM
  #5  
Newbie
 
Join Date: Sep 2023
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I'm sure it's fine. Age of the bike doesn't really hurt the integrity very much unless it was not stored well. The more annoying thing is the outdated specs of the bike. A lot of times older bikes won't be able to fit the more modern componentry. You might find limitations on drive train upgrades, tire clearance if you wanted to go a little bigger on tires, and that kind of thing.
TacosDePescado is offline  
Old 09-15-23, 04:04 PM
  #6  
I'm good to go!
 
Iride01's Avatar
 
Join Date: Jul 2017
Location: Mississippi
Posts: 14,161

Bikes: Tarmac Disc Comp Di2 - 2020

Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 5843 Post(s)
Liked 4,466 Times in 3,078 Posts
If it looks good, then assume it is good. Even a new bike could be bad right out of the factory. Of course you get a warranty with the new bike. You should probably consider whether you would be broke and destitute if this old bike should break on your first ride. So make your offer accordingly.

Unless it's been upgraded, it's going to have very old components on it. And it might not hold the wider tires people like to ride today.
Iride01 is offline  
Old 09-15-23, 04:22 PM
  #7  
Senior Member
 
staehpj1's Avatar
 
Join Date: Aug 2006
Location: Tallahassee, FL
Posts: 11,693
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1180 Post(s)
Liked 665 Times in 501 Posts
Originally Posted by Irishred
I'm looking at a 2002 Cannondale R1000 CADD7. The bike was ridden very little with maybe 1,000 miles on it. Is it age/time that affect the frame, or would it depend on millage and stress? I can see no signs of stress or cracks in the frame.
Thanks
If you don't see signs of crash damage I wouldn't sweat it. My 1990 Cannondales one a crit bike and the other a rigid MTB both have a huge amounts of mileage and are still going strong.
staehpj1 is offline  
Old 09-15-23, 06:29 PM
  #8  
Junior Member
 
Pantah's Avatar
 
Join Date: Aug 2021
Location: Sebastopol, CA
Posts: 123

Bikes: More than I have room for.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 37 Post(s)
Liked 64 Times in 32 Posts
I'm a bit of an aluminum frame fan, especially Cannondales, so my opinion may be a bit biased but I say you'll be fine. I've had a couple of road frames of theirs from the same era but from opposite ends of the catalog: a 1999 R4000 (top of the line) and a 2000 R300 (bottom of the line) and both were great bikes the whole time. From what I understand, that was before the time Cannondale really started messing around with thin walled tubes for a while that gave them a bad rap for cracking.
1,000 miles is not much in the grand scheme of things. Everything should work fine, even if wasn't maintained as well as it should have been. That bike should be 9 speed, probably Ultegra. If working well, which it should, it'll provide nice crisp shifting.
Folks have mentioned tire sizing. 700x25 is an easy fit, and what I personally run on my Cannondales of that era, 700x26 will fit, 700x27 probably? 700x28 would be a gamble. Even if it does fit, you'd have no room for the rim to get even slightly out of true.

Anyways, hope it works out and if you get it, send us a photo!
Pantah is offline  
Old 09-15-23, 06:55 PM
  #9  
Senior Member
 
Join Date: Jul 2020
Location: Humboldt County, CA
Posts: 825
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 390 Post(s)
Likes: 0
Liked 413 Times in 275 Posts
A CAAD7 frame would be well into the super-thin-wall, 2-pound-range era of Cannondale frames. Inspect the frame very carefully, especially around the bottom bracket and seat cluster joints. Any dents in the tubing, or cracks in the paint, find a different bike.

The ultra-light Cannondale frames were the ones that gave the brand the "crack-n-fail" reputation. They were just too light, and thus didn't deal with damage well at all. The Cannondale shop I worked at back then had a cutaway model of the CAAD7 frame. I could have crushed the unbutted belly section of the downtube in one hand. Those tubes were thin.

--Shannon
ShannonM is offline  
Old 09-15-23, 08:06 PM
  #10  
Senior Member
 
Trakhak's Avatar
 
Join Date: Jan 2005
Location: Baltimore, MD
Posts: 4,751
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 2079 Post(s)
Liked 2,405 Times in 1,365 Posts
Originally Posted by ShannonM
A CAAD7 frame would be well into the super-thin-wall, 2-pound-range era of Cannondale frames. Inspect the frame very carefully, especially around the bottom bracket and seat cluster joints. Any dents in the tubing, or cracks in the paint, find a different bike.

The ultra-light Cannondale frames were the ones that gave the brand the "crack-n-fail" reputation. They were just too light, and thus didn't deal with damage well at all. The Cannondale shop I worked at back then had a cutaway model of the CAAD7 frame. I could have crushed the unbutted belly section of the downtube in one hand. Those tubes were thin.

--Shannon
I worked at a Cannondale dealership starting before they began building bikes and into the late '90s. This myth about "Crack'n'Fail" drives me crazy. There was never a period when their frames were failing at anything above the rate of failure of comparable steel frames.

Crack-'n'-Fail, like Cramp-'n'-Go-Slow, Shi*mano, and (earlier) Flexxon Lafftech, was nothing more than meaningless bike store humor, possibly helped along by people working in dealerships whose business was being affected by Cannondale's success.

It wasn't a coincidence that, a couple of years after Cannondale's bikes showed up in bike stores, all their major rivals in the U.S. market were selling their own aluminum bike models (reluctantly, since it was costly to revamp their lines to compete). Meanwhile, several other bike brands faded away.

By the way---of course the cutaway Cannondale tube was easy to flex. The point of the cutaway was to emphasize that, thanks to the expertise of their engineers, they could build frames from aluminum tubing that was incredibly thin and light and yet strong enough for the frames to be covered under their lifetime warranty.

Don't take my word for it. Read this translation of the German Tour magazine's report of fatigue tests of 12 high-end racing frames, from 1997.

It's a terrific article, and a must-read, but here's the Reader's Digest version:

Various steel, titanium, aluminum, and carbon frames were subjected to extensive fatigue testing.

Spoiler: a Trek OCLV carbon frame, a European Principia aluminum frame, and a Cannondale aluminum frame passed the tests.

All of the steel and titanium frames failed. All of them.

The testers themselves said that they were surprised by the results. They also said that the frames that failed, had they been built under more-stringent quality control conditions, might well have passed the tests, too.

Still---the results were unequivocal. And Cannondale's aluminum frames are trustworthy.
Trakhak is offline  
Old 09-15-23, 09:01 PM
  #11  
Senior Member
 
big john's Avatar
 
Join Date: Sep 2005
Location: In the foothills of Los Angeles County
Posts: 24,183
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 7558 Post(s)
Liked 7,977 Times in 4,013 Posts
Originally Posted by ShannonM
A CAAD7 frame would be well into the super-thin-wall, 2-pound-range era of Cannondale frames. Inspect the frame very carefully, especially around the bottom bracket and seat cluster joints. Any dents in the tubing, or cracks in the paint, find a different bike.

The ultra-light Cannondale frames were the ones that gave the brand the "crack-n-fail" reputation. They were just too light, and thus didn't deal with damage well at all. The Cannondale shop I worked at back then had a cutaway model of the CAAD7 frame. I could have crushed the unbutted belly section of the downtube in one hand. Those tubes were thin.

--Shannon
I don't think there was ever a 2 pound CAAD frame.
big john is offline  
Old 09-16-23, 07:52 AM
  #12  
Senior Member
 
Join Date: Jun 2013
Location: location location
Posts: 3,020

Bikes: MBK Super Mirage 1991, CAAD10, Yuba Mundo Lux, and a Cannondale Criterium Single Speed

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 338 Post(s)
Liked 287 Times in 203 Posts
Originally Posted by big john
I don't think there was ever a 2 pound CAAD frame.
CAAD12 is the lightest so far at 1098 grams, or 2.4lbs.

my Cannondale Criterium from the 80s rides just fine, except for the broken derailleur hanger. The hanger is replaceable on the CAAD7, so that won’t be an issue.
Leinster is offline  
Likes For Leinster:
Old 09-16-23, 08:20 AM
  #13  
Senior Member
 
Join Date: Jan 2023
Location: Eastern Shore MD
Posts: 614

Bikes: Lemond Zurich/Trek ALR/Giant TCX/Sette CX1

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 388 Post(s)
Liked 534 Times in 267 Posts
Back in the day, 25-30k miles on my CAAD3 as a 220# power-lifer. Bike was a beast, fast and stiff.

And they were called crackendales back then too…

My current Emonda ALR is awesome….


I love aluminum frames and wouldn’t hesitate to buy one used.
Jughed is offline  
Old 09-16-23, 08:55 AM
  #14  
Dirty Heathen
 
Ironfish653's Avatar
 
Join Date: Oct 2015
Location: MC-778, 6250 fsw
Posts: 2,177

Bikes: 1997 Cannondale, 1976 Bridgestone, 1998 SoftRide, 1989 Klein, 1989 Black Lightning #0033

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 882 Post(s)
Liked 899 Times in 529 Posts
Originally Posted by big john
I don't think there was ever a 2 pound CAAD frame.
The CAAD-10 got down to a claimed 1150g. The "2.8" frames from 1993 were in the low 1300's, almost half a kilo lighter than even premium steel of the day. (Cinelli Supercorsa is ~1800g)

Remember, too, that by the time Cannondale built the OP's CAAD-7, they'd been making aluminum bikes, and only aluminum bikes, for almost two decades; longer than anyone except KLEIN; they're pretty much the benchmark.

Line up an early CAAD with a bunch of modern AL bikes, and the only thing that would give it away would be the shifter bosses and 1" headset; they were really ahead of the curve
Ironfish653 is offline  
Likes For Ironfish653:
Old 09-16-23, 04:13 PM
  #15  
Senior Member
 
big john's Avatar
 
Join Date: Sep 2005
Location: In the foothills of Los Angeles County
Posts: 24,183
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 7558 Post(s)
Liked 7,977 Times in 4,013 Posts
Originally Posted by Ironfish653
The CAAD-10 got down to a claimed 1150g. The "2.8" frames from 1993 were in the low 1300's, almost half a kilo lighter than even premium steel of the day. (Cinelli Supercorsa is ~1800g)

Remember, too, that by the time Cannondale built the OP's CAAD-7, they'd been making aluminum bikes, and only aluminum bikes, for almost two decades; longer than anyone except KLEIN; they're pretty much the benchmark.

Line up an early CAAD with a bunch of modern AL bikes, and the only thing that would give it away would be the shifter bosses and 1" headset; they were really ahead of the curve
I had a CAAD 5. Weight Weenies says it was close to 1500g in my size 63. Also had a touring frame from 1988 with a steel fork. Not light but great for touring.
big john is offline  
Likes For big john:
Old 09-16-23, 05:27 PM
  #16  
Senior Member
 
Join Date: Jul 2014
Posts: 1,453
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 1053 Post(s)
Liked 654 Times in 424 Posts
Originally Posted by Trakhak
...
It wasn't a coincidence that, a couple of years after Cannondale's bikes showed up in bike stores, all their major rivals in the U.S. market were selling their own aluminum bike models (reluctantly, since it was costly to revamp their lines to compete). Meanwhile, several other bike brands faded away.
.....
It must not have been too hard to compete. That was also around the time that all those bikes at Walmart were starting to be made out of aluminum, something that persists to this day.

The shift came because hydroforming technology, already in use in many places, became more affordable. As soon as bicycle manufacturers figured out how much money they could save making bike frames this way, all of a sudden it was marketed as "innovation" and "advanced engineering".
Jeff Neese is offline  
Likes For Jeff Neese:
Old 09-17-23, 04:45 AM
  #17  
Dirty Heathen
 
Ironfish653's Avatar
 
Join Date: Oct 2015
Location: MC-778, 6250 fsw
Posts: 2,177

Bikes: 1997 Cannondale, 1976 Bridgestone, 1998 SoftRide, 1989 Klein, 1989 Black Lightning #0033

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 882 Post(s)
Liked 899 Times in 529 Posts
I think that CNC controlled, wire-feed pulsed TIG welding setups, along with the increases in power and accessibility of computer systems in the late 80s-early 90s to run said automated welding setups, made it more practical to mass produce aluminum bikes , then being able to bend tubes into funny shapes

You also presume that they're using the same material and construction techniques; Im pretty sure Merida and Pacific aren't making sub-1400g frames with smooth fillet, double -pass puddle welds like they did in Bedford and Chehalis

Going to Al does save you about 30% of the weight of an equivalent steel part. Some would call that an advancement; but then, heavier bikes give you a better workout
Ironfish653 is offline  
Old 09-17-23, 05:34 AM
  #18  
Steel is real
 
georges1's Avatar
 
Join Date: Mar 2013
Location: Not far from Paris
Posts: 2,021

Bikes: 1992Giant Tourer,1992MeridaAlbon,1996Scapin,1998KonaKilaueua,1993Peugeot Prestige,1991RaleighTeamZ(to be upgraded),1998 Jamis Dragon,1992CTWallis(to be built),1998VettaTeam(to be built),1995Coppi(to be built),1993Grandis(to be built)

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 566 Post(s)
Liked 779 Times in 512 Posts
Older made in USA Cannondales from CAAD2 to CAAD8 were of brilliant craftsmanship and well finished. I have a 2001 red trek 2300 in alpha aluminium SL in red color as project but if I had more space in my garage, I would have without a doubt added a Cannondale .I have on the other hand two other nice Aluminium frames a Veneto Art Decor in Columbus Altec 2 and a Daccordi Fly. Older Trek 2200-2300 Alpha SL Aluminium frames were of very good quality. Most of the people I raced with back in the days still have their US made CAAD frames, many upgraded the componentry on their bikes. A well made frame will last you a lifetime.
georges1 is offline  
Old 09-17-23, 06:26 AM
  #19  
Senior Member
 
Trakhak's Avatar
 
Join Date: Jan 2005
Location: Baltimore, MD
Posts: 4,751
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 2079 Post(s)
Liked 2,405 Times in 1,365 Posts
Originally Posted by Jeff Neese
It must not have been too hard to compete. That was also around the time that all those bikes at Walmart were starting to be made out of aluminum, something that persists to this day.
That's two different topics. First: the bike brands competing with Cannondale were set up to build steel bikes and would have preferred to continue doing so indefinitely, since revamping their factories to accommodate aluminum frame manufacture, to say nothing of doing the R&D needed to catch up with Cannondale's head start and retraining their work force, would have required a sizable investment. But, seeing their market being eaten into by Cannondale, they did what they had to do.

Second, it was at least 10 years after Cannondale's bikes hit the market that the first aluminum bikes showed up in big box stores. And those bikes are comparable to Cannondale's bikes only if you believe that steel Huffys and Murrays are comparable to steel De Rosas and Pinarellos.

Yes, they're steel. But that's where the resemblance ends. Heft a cheap aluminum bike sometime. They weigh so much more than bike store aluminum bikes because the tubing is thick enough that the builders don't have to bother heat treating them. Very cheap to build that way.

Originally Posted by Jeff Neese
The shift came because hydroforming technology, already in use in many places, became more affordable. As soon as bicycle manufacturers figured out how much money they could save making bike frames this way, all of a sudden it was marketed as "innovation" and "advanced engineering".
So what's your point? Regardless of whether the engineering was innovative (and the engineering to optimize hydroforming for the complex stress patterns of a high-performance bicycle frame would indeed be advanced), the result was that aluminum frames became even lighter than before without sacrificing performance.
Trakhak is offline  
Old 09-17-23, 09:36 AM
  #20  
climber has-been
 
terrymorse's Avatar
 
Join Date: Dec 2004
Location: Palo Alto, CA
Posts: 6,322

Bikes: Scott Addict R1, Felt Z1

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 2736 Post(s)
Liked 2,758 Times in 1,394 Posts
Originally Posted by Trakhak
First: the bike brands competing with Cannondale were set up to build steel bikes and would have preferred to continue doing so indefinitely, since revamping their factories to accommodate aluminum frame manufacture, to say nothing of doing the R&D needed to catch up with Cannondale's head start and retraining their work force, would have required a sizable investment. But, seeing their market being eaten into by Cannondale, they did what they had to do.
When discussing high-end aluminum frames, Klein Bikes deserve a mention. They were never huge in the marketplace, but their frames were pretty great. I had a pre-Trek Klein Navigator that got me to the finish of the Everest Challenge (and the top step of the podium, ahem). Trek probably acquired Klein to compete with Cannondale's offerings, but when carbon frames soared in popularity, there was no need to have a competitive aluminum offering, and soon Klein was no more.
__________________
Ride, Rest, Repeat

terrymorse is offline  
Likes For terrymorse:
Old 09-17-23, 10:46 AM
  #21  
Senior Member
 
Trakhak's Avatar
 
Join Date: Jan 2005
Location: Baltimore, MD
Posts: 4,751
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 2079 Post(s)
Liked 2,405 Times in 1,365 Posts
The shop I worked in was a Klein dealership before Cannondale started producing bikes. We sold maybe two Kleins per year, if that. Great bikes, of course, but the pressed-in bottom bracket was an unfortunate choice from a servicing standpoint.

The Cannondales had their downsides from the point of view of the bike store, too. Five years earlier, the shop had signed on to be the first Trek dealership in Maryland, so we spent a few years assembling the bikes from the bare frame up, with the frame and fork arriving in one box and the components in another.

Eventually they joined the rest of the industry in shipping their bikes partly assembled, to the relief of their dealers throughout the country. Then we picked up Cannondales, and we were back to assembling two boxes worth of frame and components from scratch. Amusing in retrospect. Not at the time.
Trakhak is offline  
Old 09-17-23, 10:56 AM
  #22  
Senior Member
 
Join Date: Jan 2023
Location: Eastern Shore MD
Posts: 614

Bikes: Lemond Zurich/Trek ALR/Giant TCX/Sette CX1

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 388 Post(s)
Liked 534 Times in 267 Posts
Originally Posted by Jeff Neese
It must not have been too hard to compete. That was also around the time that all those bikes at Walmart were starting to be made out of aluminum, something that persists to this day.

The shift came because hydroforming technology, already in use in many places, became more affordable. As soon as bicycle manufacturers figured out how much money they could save making bike frames this way, all of a sudden it was marketed as "innovation" and "advanced engineering".
Have you ridden one?

My ALR 5 is light years ahead of my old CAD 3 in terms of ride quality/feel.

And no, not because of geometry or tires. Geometry is very close between the bikes and the ALR comes with 25mm.

Its just an overall better frame. My CAD3 was a bone rattling ride. Road buzz, vibrations, jarring… The ALR dampens all of that out.

And just to compare to a real road bike rather than a Wallyworld unit - the equally equipped ALR 5 is only 0.2kg heavier than the carbon SL5 - and it’s $1100 cheaper.

Weight, performance, visually nearly identical to each other - but much cheaper.
Jughed is offline  
Likes For Jughed:
Old 09-17-23, 03:35 PM
  #23  
Senior Member
 
Maelochs's Avatar
 
Join Date: Oct 2015
Posts: 15,160

Bikes: 2015 Workswell 066, 2017 Workswell 093, 2014 Dawes Sheila, 1983 Cannondale 500, 1984 Raleigh Olympian, 2007 Cannondale Rize 4, 2017 Fuji Sportif 1 LE

Mentioned: 143 Post(s)
Tagged: 0 Thread(s)
Quoted: 7454 Post(s)
Liked 3,141 Times in 1,678 Posts
Originally Posted by Jeff Neese
The shift came because hydroforming technology, already in use in many places, became more affordable. As soon as bicycle manufacturers figured out how much money they could save making bike frames this way, all of a sudden it was marketed as "innovation" and "advanced engineering".
Originally Posted by Trakhak
So what's your point? Regardless of whether the engineering was innovative (and the engineering to optimize hydroforming for the complex stress patterns of a high-performance bicycle frame would indeed be advanced), the result was that aluminum frames became even lighter than before without sacrificing performance.
Ummm .... yeah, exactly. That's his point.
Maelochs is offline  
Old 09-17-23, 06:05 PM
  #24  
Senior Member
 
Join Date: Jul 2014
Posts: 1,453
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 1053 Post(s)
Liked 654 Times in 424 Posts
Originally Posted by Trakhak
That's two different topics. First: the bike brands competing with Cannondale were set up to build steel bikes and would have preferred to continue doing so indefinitely, since revamping their factories to accommodate aluminum frame manufacture, to say nothing of doing the R&D needed to catch up with Cannondale's head start and retraining their work force, would have required a sizable investment. But, seeing their market being eaten into by Cannondale, they did what they had to do.
......
So what's your point? Regardless of whether the engineering was innovative (and the engineering to optimize hydroforming for the complex stress patterns of a high-performance bicycle frame would indeed be advanced), the result was that aluminum frames became even lighter than before without sacrificing performance.
You say you worked for a Cannondale dealer - it sounds like you drank a lot of that Kool-Aid.

Bicycle manufacturers certainly would not have preferred to keep building bikes out of steel, once the manufacturing technology became mature enough to make them so much cheaper out of aluminum. That switch would have happened with or without Cannondale. Are you under the impression that Cannondale invented hydroforming, or TIG welding, or anything else involved in aluminum frame production? Also, the "complex stress patterns" of a bicycle frame have been well-known to frame builders for ages.

What Cannondale did was take already-developed technology (hydroforming) that had become more affordable, in the same way that 3D printing went from being high-end specialty production to now cheap desktop devices, and and apply it to bicycle frames. Computer-aided design has also been around for a long time, and from the field of materials science we already knew the properties of aluminum.

So what did Cannondale really develop? Answer: they developed the way to MARKET aluminum bicycles. They actually did the other manufacturers a service by convincing average consumers and newbies that aluminum frames were somehow "advanced" and "high tech". Cannondale paved the way to selling mass-market aluminum bikes, not making them. They didn't invent a single thing.

I've got to hand it to their marketing team - that's where the genius lies at Cannondale. If you can convince people to buy those ridiculous single-sided forks, you can sell anything.
Jeff Neese is offline  
Old 09-17-23, 06:30 PM
  #25  
Senior Member
 
rekmeyata's Avatar
 
Join Date: Sep 2010
Location: NE Indiana
Posts: 9,008

Bikes: 2020 Masi Giramondo 700c; 2013 Lynskey Peloton; 1992 Giant Rincon; 1989 Dawes needs parts; 1985 Trek 660; 1985 Fuji Club; 1984 Schwinn Voyager; 1984 Miyata 612; 1977 Raleigh Competition GS

Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 1011 Post(s)
Liked 192 Times in 158 Posts
With only 1,000 miles or so on the bike, its virtually new, age doesn't deteriorate aluminum or any other metal.

I doubt they stored the bike outside, so corrosion is probably not a factor, but even if there is some it can be cleaned up rather easily. The least aggressive way is to ball up a piece of aluminum foil and then dip it in white vinegar then rub it on the corroded areas. If that doesn't work then buy some aluminum polish pre-cleaner, spray on the cleaner and allow it to sit for about 10 minutes, then brush oxidized areas, rinse and dry the area.

Once you have cleaned the corrosion off then get some clear spray-on lacquer and spray the frame, but practice spraying first on a piece of PVC pipe to help you figure out how to spray a rounded object without getting runs.

But I doubt there is any corrosion on the frame, because Cannondale clear coated their frames, however after Cannondale sold out the Chinese are not using a high-quality clear coat and people are complaining that it's flaking off, however yours is a 2002 which was made 6 years before they sold out, so all the more reason why that frame is in great shape.
rekmeyata is offline  
Likes For rekmeyata:

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.