New CAAD 12= The return of Aluminun bikes to the real world?
#101
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Yup.
Some folks are happy shelling out a couple of hundred and riding steel for years. Other folks are stoked to shell out Thousands and then paying a couple of hundred for Carbon for years. Or until the new Upgraded Frame comes out that shaves 10 minutes off 200 km, disregarding previous thousand dollar frame.
Some folks are happy shelling out a couple of hundred and riding steel for years. Other folks are stoked to shell out Thousands and then paying a couple of hundred for Carbon for years. Or until the new Upgraded Frame comes out that shaves 10 minutes off 200 km, disregarding previous thousand dollar frame.
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#104
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Who said anything about Banned?
".....The Return of Aluminum bikes to the real world?" I thought "Real World" meant non-racers.
In any case, I feel the CAAD10 was the return, the 12 might be somewhat of a step away from that.
As for Velonews, first a bad review of CAAD12, then that article about Counterfeit Carbon... Meh, I'm just gonna step back and watch this industry implode like Atari in the 80's. If it doesn't, no sweat off my back, I already got my Pure Fix frame standing by.
".....The Return of Aluminum bikes to the real world?" I thought "Real World" meant non-racers.
In any case, I feel the CAAD10 was the return, the 12 might be somewhat of a step away from that.
As for Velonews, first a bad review of CAAD12, then that article about Counterfeit Carbon... Meh, I'm just gonna step back and watch this industry implode like Atari in the 80's. If it doesn't, no sweat off my back, I already got my Pure Fix frame standing by.
#107
Senior Member
Harshness is not an intrinsic property to any material. Problem with Al is that it has 1/3 of the Young's modulus of steel, so in layman's terms, it's 1/3 as stiff as steel (assuming identical geometries). So Al bikes compensate through geometry and tubing thickness. Big tubes are stiffer in torsion. So are thicker tubes (especially in bending). If you look at old steel bikes, they have very thin tubes compared to the tubes we see today. These thin tubes allow for vertical compliance.
Also, in the search for the ultimate aero bike, some aluminum bikes have teardrop shaped downtubes, with the major axis vertical and the minor axis horizontal. This does NOT allow for much vertical compliance at all.
Also, in the search for the ultimate aero bike, some aluminum bikes have teardrop shaped downtubes, with the major axis vertical and the minor axis horizontal. This does NOT allow for much vertical compliance at all.
Last edited by Deontologist; 07-02-15 at 09:25 PM.
#108
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Harshness is not an intrinsic property to any material. Problem with Al is that it has 1/3 of the Young's modulus of steel, so in layman's terms, it's 1/3 as stiff as steel (assuming identical geometries). So Al bikes compensate through geometry and tubing thickness. Big tubes are stiffer in torsion. So are thicker tubes (especially in bending). If you look at old steel bikes, they have very thin tubes compared to the tubes we see today. These thin tubes allow for vertical compliance.
Also, in the search for the ultimate aero bike, some aluminum bikes have teardrop shaped downtubes, with the major axis vertical and the minor axis horizontal. This does NOT allow for much vertical compliance at all.
Also, in the search for the ultimate aero bike, some aluminum bikes have teardrop shaped downtubes, with the major axis vertical and the minor axis horizontal. This does NOT allow for much vertical compliance at all.
I'll never understand how Klein was able to make such a stiff bike....that rides so beautifully- with no harshness.
I could practice brazing, and probnably build a steel frame that would ride decently. I could never do the same with AL- even if I were an expert TIG welder.
#109
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If that had happened on an AL bike, it'd be toast. A carbon frame would be looking at mailing away to a specialist repair place at a cost of hundreds of dollars, if I was lucky enough that they thought it was repairable.
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#111
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I had a chainstay snap on a Columbus SL frame. Took it to the LBS to swap all the parts onto an old frame. LBS said "Why? We can weld that good as new." Which they did. For, IIRC, less than 30 or 40 Irish pounds (I wouldn't have been able to afford much more at the time), and I was back riding it 2 days later.
If that had happened on an AL bike, it'd be toast. A carbon frame would be looking at mailing away to a specialist repair place at a cost of hundreds of dollars, if I was lucky enough that they thought it was repairable.
If that had happened on an AL bike, it'd be toast. A carbon frame would be looking at mailing away to a specialist repair place at a cost of hundreds of dollars, if I was lucky enough that they thought it was repairable.
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#112
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But the thing is, if I had a broken steel bike, I could take it to any halfway competent professional welder, who needn't even have any experience with bikes, and he'd put it back together and have it, if not pro-race worthy, then at the very least capable of doing basic duty as a bicycle. The LBS I took my old bike to weren't frame builders, but they had welding equipment, and could fix steel bike frames for a very reasonable price.
With Al frames, you need to find a MiG or TiG welder with specialized equipment and who can put the whole frame in an oven. CF is a whole 'nother level of specialization and equipment again.
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But the thing is, if I had a broken steel bike, I could take it to any halfway competent professional welder, who needn't even have any experience with bikes, and he'd put it back together and have it, if not pro-race worthy, then at the very least capable of doing basic duty as a bicycle. The LBS I took my old bike to weren't frame builders, but they had welding equipment, and could fix steel bike frames for a very reasonable price.
With Al frames, you need to find a MiG or TiG welder with specialized equipment and who can put the whole frame in an oven.
CF is a whole 'nother level of specialization and equipment again.
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#115
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#118
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I like a lot of the new steel bikes. Wish they were more accessible.
Anyway, I put a deposit on a new Caad12 then canceled. I was going to get the non disc version. Seems like this bike was built with disc in mnd and the non disc versions are an after thought. I am going to wait till some folks put some miles on them. I may pick up a Caad10 if they dont meet expectations.
#119
Senior Member
I like a lot of the new steel bikes. Wish they were more accessible.
Anyway, I put a deposit on a new Caad12 then canceled. I was going to get the non disc version. Seems like this bike was built with disc in mnd and the non disc versions are an after thought. I am going to wait till some folks put some miles on them. I may pick up a Caad10 if they dont meet expectations.
#120
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#121
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#122
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I like a lot of the new steel bikes. Wish they were more accessible.
Anyway, I put a deposit on a new Caad12 then canceled. I was going to get the non disc version. Seems like this bike was built with disc in mnd and the non disc versions are an after thought. I am going to wait till some folks put some miles on them. I may pick up a Caad10 if they dont meet expectations.
#123
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Heck, I'm still riding my CAAD9, the last of the real Cannondales IMHO. It really is a terrific bike, and it's managed quite well during my 160 lb weight loss - I started at over 400 lbs. I had wheels built for it and my fit has changed a couple of times, but the frame is in great shape and rides well. The CF fork helps with the ride quality I'm sure.
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I had a chainstay snap on a Columbus SL frame. Took it to the LBS to swap all the parts onto an old frame. LBS said "Why? We can weld that good as new." Which they did. For, IIRC, less than 30 or 40 Irish pounds (I wouldn't have been able to afford much more at the time), and I was back riding it 2 days later.
If that had happened on an AL bike, it'd be toast. A carbon frame would be looking at mailing away to a specialist repair place at a cost of hundreds of dollars, if I was lucky enough that they thought it was repairable.
If that had happened on an AL bike, it'd be toast. A carbon frame would be looking at mailing away to a specialist repair place at a cost of hundreds of dollars, if I was lucky enough that they thought it was repairable.
We're comparing jobs that end in a like-new product done by folks who have a reputation for knowing how.
Last edited by rpenmanparker; 09-23-15 at 06:30 AM.