Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

CF Chainsucked

Reply

Old 03-25-09, 10:48 AM
  #1  
ijunes
Last decade's model
Thread Starter
 
ijunes's Avatar
 
Join Date: Jan 2009
Location: Culver City, CA
Posts: 153

Bikes: Felt CA1, Cannondale Capo, Bridgestone 112

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
CF Chainsucked

yeah eff me.

so long story short, small crash, found this the day after, and turns out i blew a spoke. I wasn't going fast enough someone just happened to turn into me going at 7 mph, and i did some chainsuck damage to the chainstay. Its clear the outer layer of paint is gone. and when you look in the light, you can see the weave pattern Towards the edge of the cut yesterda, i pulled off a few tiny pieces of what could've been fiber, or dirt.

the think the chain may have scraped it on its way out of the chainring, but i don't think it cut into it. sorry low res pic is all i have but you might be able to see what do you think
Attached Images
File Type: jpg
chainsuck.jpg (96.1 KB, 511 views)
ijunes is offline  
Reply With Quote
Old 03-25-09, 10:57 AM
  #2  
deadly downtube
mountain troll
 
deadly downtube's Avatar
 
Join Date: Sep 2004
Location: santa cruz mountains
Posts: 1,127

Bikes: the hummer brand mountain bike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
ah the beauty of carbon.. 1lb weight savings but when this happens you gotta shell out yer hard earned cash for a new one! that looks pretty minor compared to the stuff i saw getting repaired at Calfee, but I wouldn't ride it for too long.. send it to calfee, prolly $100 repair.
deadly downtube is offline  
Reply With Quote
Old 03-25-09, 11:00 AM
  #3  
snoboard2
County sign fanatic
 
snoboard2's Avatar
 
Join Date: Jul 2005
Location: Zanesville, Oh
Posts: 782

Bikes: Masi Gran Criterium (training), looking for the money for a racing bike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
looks superficial to me, but it's not a good pic. Take it to a shop, see what they say. I say just use some clear fingernail polish and cover it up, but you never know.
snoboard2 is offline  
Reply With Quote
Old 03-25-09, 11:02 AM
  #4  
DaveSSS
Senior Member
 
Join Date: Sep 2008
Location: Loveland, CO
Posts: 5,119

Bikes: Look KG461, Colnago C-RS

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 47 Post(s)
Looks superficial to me too.
DaveSSS is offline  
Reply With Quote
Old 03-25-09, 11:03 AM
  #5  
ijunes
Last decade's model
Thread Starter
 
ijunes's Avatar
 
Join Date: Jan 2009
Location: Culver City, CA
Posts: 153

Bikes: Felt CA1, Cannondale Capo, Bridgestone 112

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
yeah it did for the most part what i thought was a scratched surface turned out to be a different light in weaving. calfee is a good option, but its too far and i'd rather not ship my bike.

anybody know of a local shop around los angeles that specializes in repair?
ijunes is offline  
Reply With Quote
Old 03-25-09, 02:38 PM
  #6  
sgtp
Member
 
sgtp's Avatar
 
Join Date: May 2008
Posts: 38
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If I ever get a full carbon frame, I think I might be looking into ways to protect that part of the frame...wrap it in sheet metal, thick plastic, or whatever..... A little prevention goes a long way.
sgtp is offline  
Reply With Quote
Old 03-25-09, 02:45 PM
  #7  
asmallsol
Cat3.*....Cat2
 
asmallsol's Avatar
 
Join Date: May 2006
Location: Livonia, MI
Posts: 2,171

Bikes: A lot.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by snoboard2 View Post
looks superficial to me, but it's not a good pic. Take it to a shop, see what they say. I say just use some clear fingernail polish and cover it up, but you never know.
Right, because they are the experts in composites. Here, I'll give you the gist of how that will go..."I wouldn't ride it, have you seen our new shipment of bikes?"

Believe it or not, carbon fiber is much more damage tolerant then metals. Crack propagation in the matrix is slowed/relieved by the reinforcement. Unless the tube is literally fractured through, I wouldn't worry about it. Keep an eye on it, but don't loose sleep over it.
asmallsol is offline  
Reply With Quote
Old 03-25-09, 03:11 PM
  #8  
mr_tom
Senior Member
 
mr_tom's Avatar
 
Join Date: Apr 2005
Location: London
Posts: 423
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by asmallsol View Post
Crack propagation in the matrix
"You could take the red pill. Or you could take the blue pill. Or you could have some of this tasty, tasty rock."
mr_tom is offline  
Reply With Quote
Old 03-25-09, 03:16 PM
  #9  
shabbasuraj
Senior Member
 
shabbasuraj's Avatar
 
Join Date: Mar 2005
Posts: 1,570
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
frame is now garbage
shabbasuraj is offline  
Reply With Quote
Old 03-25-09, 03:21 PM
  #10  
ijunes
Last decade's model
Thread Starter
 
ijunes's Avatar
 
Join Date: Jan 2009
Location: Culver City, CA
Posts: 153

Bikes: Felt CA1, Cannondale Capo, Bridgestone 112

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by shabbasuraj View Post
frame is now garbage
why would you say such a effed up thing



well i took it to a few places where i knew the mechanics, aside from telling me they can't say its a safe ride due to liability, they gave the usual rundown and suggested i send it in for repairs. i cant hear a difference with the tap test, and it looks like the top layer ran down and a few spots have fibers sticking out.

question is, should i sand it out before applying some clear nail polish

i intend to send it out to calfee once i get the money and a sub-replacement bike.
ijunes is offline  
Reply With Quote
Old 03-25-09, 03:31 PM
  #11  
asmallsol
Cat3.*....Cat2
 
asmallsol's Avatar
 
Join Date: May 2006
Location: Livonia, MI
Posts: 2,171

Bikes: A lot.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I would clean the area with some 70 or 100% ethanol, apply either clear nail polish, or even better, mix up some 2 part epoxy (resin and hardner. You can buy them at any hardware store or walmart) place in cracked area. After 8 hours of hardening, sand it flush. Paint if desired.
asmallsol is offline  
Reply With Quote
Old 03-25-09, 03:58 PM
  #12  
bikeybikebike
Economists do it w/models
 
Join Date: Aug 2005
Location: Ottawa/Toronto
Posts: 591
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by mr_tom View Post
"You could take the red pill. Or you could take the blue pill. Or you could have some of this tasty, tasty rock."
HA! Beauty.
bikeybikebike is offline  
Reply With Quote
Old 03-25-09, 06:08 PM
  #13  
Loch-V
Member
 
Join Date: Sep 2008
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by asmallsol View Post
right, because they are the experts in composites. Here, i'll give you the gist of how that will go..."i wouldn't ride it, have you seen our new shipment of bikes?"

unless the tube is literally fractured through, i wouldn't worry about it.
+1
Loch-V is offline  
Reply With Quote
Old 03-25-09, 06:29 PM
  #14  
turbominnow
Senior Member
 
turbominnow's Avatar
 
Join Date: Mar 2005
Location: Houston, TX
Posts: 401

Bikes: Schwinn

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hard to tell from the excellent pic but it looks like it pulled the paint and CC. Doesnt look that bad. Nice to know the LBS is worthless.
__________________
Merlin TR3/2.5
The only Grey Matter, Ride Ti, everything else is...just a toy
turbominnow is offline  
Reply With Quote
Old 03-25-09, 08:11 PM
  #15  
IbikezLA
Senior Member
 
IbikezLA's Avatar
 
Join Date: Feb 2009
Posts: 459
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi JUNU it's Gav

damn, so that's what happened to you bike and it is such a pretty bike
IbikezLA is offline  
Reply With Quote
Old 03-26-09, 06:55 AM
  #16  
Tulex
Junk Mile Junkie
 
Tulex's Avatar
 
Join Date: May 2008
Location: Webster, NY
Posts: 6,465
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Do the epoxy thing, then put a chain guard sticker over it. Then forget about it.

In reality, how much force is ever on that part of the bike?
Tulex is offline  
Reply With Quote
Old 03-26-09, 07:25 AM
  #17  
adam
Senior Member
 
adam's Avatar
 
Join Date: Jan 2007
Location: Toronto area
Posts: 1,124

Bikes: Cervelo, Pinarello, Specialized

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
adam is offline  
Reply With Quote
Old 03-26-09, 07:45 AM
  #18  
giantcfr1
Ha ha ha ha ha
 
giantcfr1's Avatar
 
Join Date: May 2005
Location: Gold Coast; Australia
Posts: 4,551

Bikes: 2004 ORBEA Mitis2 Plus Carbon, 2007 Cannondale Bad Boy Si Disc, 2012 Trek Gary Fisher Collection Marlin WSD 29er Aldi Big Box (Polygon) 650b

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
I wouldn't be worried about that. Just get one of those thingies above and don't look back down there. How many of you bike shop owners on here seen a bike crack through there, due to a chain scrape?
giantcfr1 is offline  
Reply With Quote
Old 03-26-09, 08:26 AM
  #19  
Nickshu
Fat Guy in a Little Coat
 
Nickshu's Avatar
 
Join Date: Mar 2008
Location: Virgina
Posts: 339

Bikes: Clark-Kent Europa Ti Road; Motobecane Fantom Cyclocross

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Originally Posted by adam View Post

These things are good, but it appears it will only protect chainsuck from the top down, couldn't you still get chainsuck from the bottom up? Something is better than nothing, but doesn't appear to completely negate the risk of frame damage....poop happens.
Nickshu is offline  
Reply With Quote
Old 03-26-09, 11:52 AM
  #20  
Matt Gaunt
Senior Member
 
Matt Gaunt's Avatar
 
Join Date: Oct 2004
Location: London, UK
Posts: 2,270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Not sure how effective they are but I run these on all of my bikes for that reason:


And none of them are CF!
__________________
Matt
2018 Enigma Excel Pic|| 2010 Kinesis Decade Convert2 Pic || 2008 Kinesis RC2 Pics || 2007 Kinesis Pha5e Pics || 2005 Kinesis RC Pics || 1996 Raleigh Max Pics
Matt Gaunt is offline  
Reply With Quote
Old 03-26-09, 01:21 PM
  #21  
coasting 
Still can't climb
 
Join Date: Sep 2006
Location: Limey in Taiwan
Posts: 23,015
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Originally Posted by adam View Post
i got one but it won't go down low enough on the fat seat tube/bb lug. and the chainstay protector won't go far enough forward to protect against chain suck. so i'm a bit paranoid something bad will happen any time.
coasting is offline  
Reply With Quote
Old 03-26-09, 01:38 PM
  #22  
gettingold
Senior Member
 
Join Date: Dec 2008
Location: Syracuse, NY
Posts: 1,021

Bikes: 2018 Lynskey R 260 Disc; 2008 Trek 4.7 Madone; 2017 Framed Minnesota 3.0 Fat Bike; 1984 Nishiki International

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 111 Post(s)
I was thinking about wrapping it in a piece of an old tube; anyone try that?
gettingold is offline  
Reply With Quote
Old 03-26-09, 02:07 PM
  #23  
BlazingPedals
Senior Member
 
BlazingPedals's Avatar
 
Join Date: Dec 2004
Location: Middle of da Mitten
Posts: 10,653

Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, homebuilt recumbent

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 792 Post(s)
Originally Posted by ijunes View Post
why would you say such a effed up thing
Because it IS. Toast, totally no good. Send the frame to me for proper disposal.
BlazingPedals is online now  
Reply With Quote
Old 03-26-09, 02:19 PM
  #24  
f4rrest 
Farmer tan
 
f4rrest's Avatar
 
Join Date: May 2008
Location: Burbank, CA
Posts: 7,794

Bikes: Allez, SuperSix Evo

Mentioned: 37 Post(s)
Tagged: 1 Thread(s)
Quoted: 2769 Post(s)
f4rrest is offline  
Reply With Quote
Old 03-26-09, 02:54 PM
  #25  
cuski
Chunky Programmer
 
cuski's Avatar
 
Join Date: Feb 2007
Location: BC
Posts: 1,329
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Just a flesh wound.
Attached Images
File Type: jpg
holygrail018.jpg (15.0 KB, 25 views)
__________________
Burn the incline - V5
cuski is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service