Carbon Fiber or not?
#1
Junior Member
Thread Starter
Join Date: Jan 2014
Location: Princeton, New Jersey
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Carbon Fiber or not?
I have been contemplating buying a new bike for some time now, and I thought I finally decided that I was going to get a new Cannondale Synapse. In the past couple days however, I've been reading a few articles talking about the carbon fiber frames breaking https://www.bustedcarbon.com/ .
Is this a real problem, and should I consider going in a different direction?
Thanks.
Is this a real problem, and should I consider going in a different direction?
Thanks.
#2
Zoom zoom zoom zoom bonk
Join Date: Sep 2006
Location: New Zealand
Posts: 4,589
Bikes: Giant Defy, Trek 1.7c, BMC GF02, Fuji Tahoe, Scott Sub 35
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 540 Post(s)
Liked 704 Times
in
352 Posts
[Yes] > Get a solid steel bike with disc wheels
[No] > Get a crabon bike.
#3
Senior Member
Join Date: Nov 2010
Posts: 502
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
I have been contemplating buying a new bike for some time now, and I thought I finally decided that I was going to get a new Cannondale Synapse. In the past couple days however, I've been reading a few articles talking about the carbon fiber frames breaking https://www.bustedcarbon.com/ .
Is this a real problem, and should I consider going in a different direction?
Thanks.
Is this a real problem, and should I consider going in a different direction?
Thanks.
#5
ka maté ka maté ka ora
Join Date: Oct 2008
Location: wessex
Posts: 4,423
Bikes: breezer venturi - red novo bosberg - red, pedal force cg1 - red, neuvation f-100 - da, devinci phantom - xt, miele piste - miche/campy, bianchi reparto corse sbx, concorde squadra tsx - da, miele team issue sl - ultegra
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
Likes: 0
Liked 3 Times
in
3 Posts
If you have to ask, carbon is likely not for you.
#7
Senior Member
Join Date: Oct 2007
Location: West Yorkshire, United Kingdom
Posts: 5,772
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 452 Post(s)
Liked 103 Times
in
86 Posts
Much as Bustedcarbon was nice to look at, it's an old (not updated since 2011) site, where most of the failures were from crashed & non-riding impacts; with carbon, if you can break it, any other material would also fail, or have failed much sooner.
For Cannondale being crack'n'fail, that was the 90's, things have moved on a lot since then
For Cannondale being crack'n'fail, that was the 90's, things have moved on a lot since then
#9
Super Moderator
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,803
Bikes: Old Steelies I made, Old Cannondales
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 1160 Post(s)
Liked 840 Times
in
558 Posts
I'm sure there are "witty" names for every company.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
#11
Junior Member
Thread Starter
Join Date: Jan 2014
Location: Princeton, New Jersey
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
#12
Senior Member
I ride Al, carbon and steel bikes and would have no problem recommending carbon. Most of the relaxed geo frames tend to be a little heavier built than the race frames and are very tough.
I think a big part of carbon's rep for failing has more to do with the nature of how it fails. Steel and aluminum tend to dent or crack noticeable before they actually come apart. Carbon frames on the other hand can look fine until suddenly they are in multiple pieces. Often times it can be due to the actual damage taking place with an earlier impact and going unnoticed until a second, possibly lesser incident snaps it. So if you do go with carbon be smart about giving your frame a good inspection after any tip over or other accident (or have your shop do so). Google the "coin tap test".
#13
pan y agua
Join Date: Aug 2005
Location: Jacksonville
Posts: 31,240
Bikes: Willier Zero 7; Merlin Extralight; Calfee Dragonfly tandem, Calfee Adventure tandem; Cervelo P2; Motebecane Ti Fly 29er; Motebecanne Phantom Cross; Schwinn Paramount Track bike
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 1409 Post(s)
Liked 637 Times
in
335 Posts
And you don't need to worry about CF frames failing at a higher rate than aluminum or steel.
In this test, https://www.sheldonbrown.com/rinard/E...tigue_test.htm, now a bit dated, CF frames did better than steel or titanium, and they've only gotten better since then.
__________________
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
#14
Senior Member
Join Date: Dec 2005
Posts: 7,859
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
If you are too worried then you wont ride carbon ever.
Sucks to have an accident I give you that, personally when I got my 1st carbon I was really scared but depending of what you are going to get, you will notice that carbon its ok for bikes, got a chinese knock off once and the bike felt ok for the price i paid, so can't really complain of the frame and fork.
As with every material you always find stuff that fails, there is people with bad luck too so it is a gamble if you ask me, even with steel if you have bad luck you can have a problem in a frame.
Good luck
Sucks to have an accident I give you that, personally when I got my 1st carbon I was really scared but depending of what you are going to get, you will notice that carbon its ok for bikes, got a chinese knock off once and the bike felt ok for the price i paid, so can't really complain of the frame and fork.
As with every material you always find stuff that fails, there is people with bad luck too so it is a gamble if you ask me, even with steel if you have bad luck you can have a problem in a frame.
Good luck

#16
Senior Member
Join Date: Jul 2004
Location: northern michigan
Posts: 13,303
Bikes: '77 Colnago Super, '76 Fuji The Finest, '88 Cannondale Criterium, '86 Trek 760, '87 Miyata 712
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 657 Post(s)
Liked 579 Times
in
308 Posts
CF? Do you like levitating in a stiff crosswind?

#18
Junior Member
Join Date: Nov 2013
Location: Somewhere in New Jersey
Posts: 21
Bikes: EPX 202 Road Bike; Fuji Ace Road Bike
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
i have had my carbon frame since 2000. Never a problem. Cannondale has a great rep and I see plenty of Synapses on the road - never heard a complaint. I say go for it.
#19
Cat 5 field stuffer
Join Date: Sep 2010
Location: Hammond, La
Posts: 1,426
Bikes: Wabi Lightning RE, Wabi Classic
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Likes: 0
Liked 6 Times
in
2 Posts
Buy Carbon, they pop out of molds and are very convenient for the manufacturer. They also allow for cool shapes so you can have lots of decals advertising the manufacturer.
#20
Senior Member
I used to avoid CF like the plague, I wasn't even happy with the CF forks and seat posts which came on the aluminum bikes I bought. But then I came into an AWESOME deal on a 2000 Trek 5500; I was initially purchasing it for the component set as an upgrade to my then-current bike, but ultimately figured I'd first ride it until it broke.
Riding an all CF bike was... a revelation. Truly amazing, coming from nothing but aluminum and steel bikes.
Sadly, I quickly found out why the bike was so cheap: the frame and fork were both cracked. I only managed about two months of heavy weekend riding before I had to follow my original plan and move the components to my aluminum frame and fork, but they were an amazing couple of months. It really made me look at CF very differently.
Now, all that said, I have two CF frames hanging in my garage which are cracked: that Trek 5500 and my brother's old Madone. I have two other steel frames and one aluminum frame also hanging in the garage which were all ridden hard, hard, hard and aside of scratches and road wear could be ridden again. In my life I've never personally broken an aluminum frame, but I did break a steel frame (an old Bianchi Strada LX, right at the weld where the seat stay meets the seat tube).
Ultimately, if you've never ridden CF you should give it a try. I think that all frames can break, it's just more sensational and attention-grabbing when CF breaks. Because... OMFGCARBON!
Riding an all CF bike was... a revelation. Truly amazing, coming from nothing but aluminum and steel bikes.
Sadly, I quickly found out why the bike was so cheap: the frame and fork were both cracked. I only managed about two months of heavy weekend riding before I had to follow my original plan and move the components to my aluminum frame and fork, but they were an amazing couple of months. It really made me look at CF very differently.
Now, all that said, I have two CF frames hanging in my garage which are cracked: that Trek 5500 and my brother's old Madone. I have two other steel frames and one aluminum frame also hanging in the garage which were all ridden hard, hard, hard and aside of scratches and road wear could be ridden again. In my life I've never personally broken an aluminum frame, but I did break a steel frame (an old Bianchi Strada LX, right at the weld where the seat stay meets the seat tube).
Ultimately, if you've never ridden CF you should give it a try. I think that all frames can break, it's just more sensational and attention-grabbing when CF breaks. Because... OMFGCARBON!

__________________
https://www.pedalroom.com/members/iamtim
https://www.pedalroom.com/members/iamtim
#21
Senior Member
#23
Senior Member
Moved to P&R, just like the gun nuts threads.
#24
More Speed = More Work
Join Date: Mar 2014
Posts: 79
Bikes: Wilier Zero7, Litespeed Tuscany, Santa Cruz Superlight
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I did a lot of research on carbon too before buying the Wilier. It appears that most of the carbon problems a) happened when in the years carbon was first coming out, b) involve mountain bikes, and/or c) involve a crash. It would be surprising for a carbon road bike from a reputable manufacturer to break from even aggressive riding. Anything is possible, of course.
i can tell you that I bought a carbon frame, and couldn't be happier.
Cheers
i can tell you that I bought a carbon frame, and couldn't be happier.
Cheers
#25
Senior Member
Join Date: Oct 2006
Location: Orange County, CA
Posts: 4,768
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 629 Post(s)
Likes: 0
Liked 367 Times
in
205 Posts
Rode my crabon bike and crabon helmet on a mountain ride a couple weeks ago. Crashed it and had to get flown out of the mountain to the hospital via helicopter. Crabon bike had a very small crack in the top tube and the helmet also cracked in the front. I highly recommend not crashing your bike.