CARBON Track Crankset
#4
Senior Member
Joined: Jun 2009
Posts: 741
Likes: 0
cybrnitro,
Well, for what it's worth I'm concerned about the longevity/durability of anything carbon fiber on a bicycle. There is tons of readily available data that proves exactly how temporary CF is because of epoxy corrosion/erosion/degradation due to all sorts of environmental issues and how it is mixed (in the case of bicycles) with different metals and what have you which all leads to the deterioration of mechanical properties of the fiber itself. On and on. I'm not that type of engineer so only know what I read and tell myself I understand. The bottom line for me is that somewhere deep down inside I know that one day and of course at the worst possible time that CF will fail me without notice or apparent reason. I do not and will not own anything made of it. But, I'm old and crotchety. Grain of salt and all that. I prefer steel, like titanium and tolerate aluminum when done right.
Well, for what it's worth I'm concerned about the longevity/durability of anything carbon fiber on a bicycle. There is tons of readily available data that proves exactly how temporary CF is because of epoxy corrosion/erosion/degradation due to all sorts of environmental issues and how it is mixed (in the case of bicycles) with different metals and what have you which all leads to the deterioration of mechanical properties of the fiber itself. On and on. I'm not that type of engineer so only know what I read and tell myself I understand. The bottom line for me is that somewhere deep down inside I know that one day and of course at the worst possible time that CF will fail me without notice or apparent reason. I do not and will not own anything made of it. But, I'm old and crotchety. Grain of salt and all that. I prefer steel, like titanium and tolerate aluminum when done right.
#5
Senior Member
Joined: Jun 2009
Posts: 741
Likes: 0
cybrnitro,
Oh yea, unless you ride your steed with the greatest consistency at 5 MPH or less you should run a front brake. My insurance rates go up even when the cyclist wrapped around my car axle is brakeless. Lets do each other a favor - I promise to watch out for and respect you. You take common sense measures to be safe as you are sharing the roads. No one owes you anything and you will lose any "argument" you get into because you are the smallest, weakest and least protected thing on the road. A front brake is common sense.
Oh yea, unless you ride your steed with the greatest consistency at 5 MPH or less you should run a front brake. My insurance rates go up even when the cyclist wrapped around my car axle is brakeless. Lets do each other a favor - I promise to watch out for and respect you. You take common sense measures to be safe as you are sharing the roads. No one owes you anything and you will lose any "argument" you get into because you are the smallest, weakest and least protected thing on the road. A front brake is common sense.
#7
Senior Member
Joined: Jun 2009
Posts: 741
Likes: 0
cybrnitro,
I wish you no harm, sir. I assume by theory you mean a belief that guides behavior. Your brain is missing nothing. You have what we've all been given. You are speaking out of a point somewhat south of your head.
I wish you no harm, sir. I assume by theory you mean a belief that guides behavior. Your brain is missing nothing. You have what we've all been given. You are speaking out of a point somewhat south of your head.
#9
#10
Live4Him
Joined: Apr 2010
Posts: 315
Likes: 0
From: Central California
Bikes: https://www.bikeforums.net/showthread.php?637645-My-new-project-*pics*&highlight=gonathan85
#12
Senior Member
Joined: May 2009
Posts: 744
Likes: 0
From: Portland Oregon
Bikes: '82 Giante super challange, 70 Gitane Tour de France, GT Gutterball
#14
Senior Member
Joined: Jan 2010
Posts: 177
Likes: 0
From: Orange County, California
Bikes: Neuvation F100, Dawes Lightning 1000
#16
Hanging on by a thread
Joined: Mar 2010
Posts: 176
Likes: 0
Bikes: 1994 Bridgestone MB1 (bought new), 1983 Bruce Gordon road bike (Campy Super Record), 2010 Gary Fisher Rig (yeah!), Soma Rush (Wow...me love)
#18
Senior Member
Joined: Aug 2006
Posts: 225
Likes: 0
From: Huntersville, NC
Bikes: yes!
Don't sell the FSA Carbon cranks short. I was running them on my bmx race bike and they were friggin' awesome! Never had one issue and they surely took more of a beating than anything you're going to throw at them. And they looked smokin' too.
#21
Thats the thing that scares us the most though. Maybe I'm wrong, but I feel like carbon is going to crack before aluminum or steel bends. I just fell like steel/aluminum is safer on the street than carbon.
#22
Senior Member
Joined: Aug 2008
Posts: 1,025
Likes: 0
I wouldn't use a carbon handlebar for that reason. Other than that, there isn't any reasonable reason to avoid carbon. An aluminum or steel frame will crumple just as bad as a CF in a wreck, if not worse. If carbon fiber is good enough for airplanes, then its more than durable enough for a bike.
#23
Veteran Racer


Joined: Jul 2009
Posts: 11,862
Likes: 918
From: Ciudad de Vacas, Tejas
Bikes: 34 frames + 80 wheels
#24
Oscillation overthruster
Joined: May 2010
Posts: 1,532
Likes: 1
From: Duncan, BC
Bikes: Cinelli Mash / CAAD9 5
Steel cranks don't bend they snap right the hell off. I had some nice redline flight 401 snap clean off and nearly take out my leg.
I've also been running a stock Trek T1 carbon fork for 2+ years on the road and the velodrome. I weigh 215. I have no worries about losing teeth.
I've also been running a stock Trek T1 carbon fork for 2+ years on the road and the velodrome. I weigh 215. I have no worries about losing teeth.
#25
My carbon "fears" don't really apply to like handlebars and such. I'm really just taking about chainrings really. Crankarms, frames, wheels, spokes, forks, handlebars... whatever. Its really just the chainring I wouldn't want carbon, or chain, but yeah.






