Busted Carbon
11-29-10, 06:48 PM
#51
Senior Member
I thought this only happened to Trek Madones...
__________________
Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --the tiniest sprinter
Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --the tiniest sprinter
11-29-10, 06:56 PM
#52
Senior Member
__________________
Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --the tiniest sprinter
Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --the tiniest sprinter
11-29-10, 07:10 PM
#53
CAADdict
Join Date: Jul 2009
Location: BF Heaven
Posts: 6,756
Bikes: 2009 Cannondale CAAD9-?
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 5 Times
in
5 Posts
Galvanic corrosion. Basically, the interface between the carbon fiber (the actual fiber, not the bulk material) and bare aluminum becomes a little battery when you add a bit of electrolyte (water with dissolved salts of some sort or another) and eats away at the aluminum side. Here's an old thread on the subject.
That's definitely "must know" information.
11-29-10, 07:18 PM
#54
"Chooch"
Join Date: Jun 2010
Location: Prairieville, Louisiana
Posts: 1,659
Bikes: Late 1990s Ciocc Titan
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Uh, uh. I'm staying OUT of this one! 
Last edited by ciocc_cat; 11-29-10 at 07:23 PM.
11-29-10, 07:24 PM
#55
Bike ≠ Car ≠ Ped.
Galvanic corrosion. Basically, the interface between the carbon fiber (the actual fiber, not the bulk material) and bare aluminum becomes a little battery when you add a bit of electrolyte (water with dissolved salts of some sort or another) and eats away at the aluminum side. Here's an old thread on the subject.
DannoXYZ, in post 7 in that thread, mentions the gel coat on carbon that should protect against carbon-Al galvanic corrosion. Hopefully it works that way in the real world, too.
11-29-10, 07:31 PM
#57
your god hates me
Join Date: Apr 2006
Posts: 4,592
Bikes: 2016 Richard Sachs, 2010 Carl Strong, 2006 Cannondale Synapse
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 1252 Post(s)
Liked 1,284 Times
in
709 Posts
OTOH, my carbon bike, which I've owned for over 4 years and have crashed twice, is still perfectly -- or at least acceptably -- intact.
11-29-10, 07:56 PM
#58
Senior Member
Join Date: Mar 2010
Location: Seattle, WA
Posts: 23,208
Mentioned: 89 Post(s)
Tagged: 0 Thread(s)
Quoted: 18883 Post(s)
Liked 10,646 Times
in
6,054 Posts
I crashed a year ago turning too sharply, and bent the rear triangle on an aluminum frame. I ride my carbon bike ... differently. It's not that I'm more conservative, but I try to take fewer risks on it. Any material can be destroyed if you abuse it right.
11-29-10, 08:01 PM
#59
Super Moderator
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,843
Bikes: Old Steelies I made, Old Cannondales
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1173 Post(s)
Liked 927 Times
in
612 Posts
Racing isn't any harder on a bike than non-racing.
__________________
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
11-29-10, 08:13 PM
#60
Old fart
Join Date: Nov 2004
Location: Appleton WI
Posts: 24,786
Bikes: Several, mostly not name brands.
Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3588 Post(s)
Liked 3,400 Times
in
1,934 Posts
Yes. When we designed the original Trek carbon fiber frame (the one that used round tubes bonded to aluminum lugs) we used a fiberglass sleeve between the carbon tube and aluminum lug to prevent electrolytic degradation of the joint.
11-29-10, 08:17 PM
#61
Old fart
Join Date: Nov 2004
Location: Appleton WI
Posts: 24,786
Bikes: Several, mostly not name brands.
Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3588 Post(s)
Liked 3,400 Times
in
1,934 Posts
11-29-10, 08:34 PM
#66
Senior Member
Join Date: Jun 2008
Location: Louisville, KY
Posts: 13,445
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 4234 Post(s)
Liked 2,949 Times
in
1,808 Posts
you don't have to, but it seems to help.
11-29-10, 09:25 PM
#67
Senior Member
Thread Starter
Join Date: Jun 2008
Location: Central CT USA
Posts: 653
Bikes: 1991 Tomassini Prestige 1973 Raliegh Supercourse, 1975 Panasonic Sport Deluxe, 1983 Fuji S-12, 1975 Motobecane Mirage, 1983 Motobecane Super Mirage 1999 Trek 930 1989 Trek 930 ,
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
11-29-10, 09:42 PM
#70
Super Moderator
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,843
Bikes: Old Steelies I made, Old Cannondales
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1173 Post(s)
Liked 927 Times
in
612 Posts
btw, good luck with everything, umd
I've raced most categories, so I know what racing's like.
__________________
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
Last edited by Homebrew01; 11-29-10 at 09:50 PM.
11-29-10, 10:17 PM
#71
Has coddling tendencies.
30,000 +miles on this full carbon fiber custom tandem bicycle . . . . . . including Easton c/f handlebars, front and rear; c/f cranks; c/f fork . . .
Have BROKEN 2 steel tandem frames and and one steel tandem fork . . .
So you still ride steel**********
Anything can wear or break eventually.
