Trek carbon fix help
11-03-14, 11:08 AM
#2
Dead Fly
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11-03-14, 11:18 AM
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is it actually coming apart or just delaminating a little at the bb/chainstay junction? Not having my hands on it, I speculate that (as bad as it looks) it could be cosmetic. I would ask my local Trek dealer if that isn't clear to you
11-04-14, 08:59 AM
#9
Decrepit Member
Calfee Design offers professional CFRP repair services and they guarantee their work.
11-09-14, 08:38 AM
#10
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long john,
Don't give up that easy…esp. if the Trek Dealership/Cust. Svc. won't help or reneges on their so-called 'Buy Back/Replace' policy.
I've been encountering more and more people who have either sent their bike to repair companies, like renowned Calfee mentioned above and other, local outfits.
Granted, many of the well known CF repair & factory names are in CA or the PacNW[..where I live now, used to be a NY'er/NYC messenger a lifetime ago..], but since the whole world is going carbon you have more and more choices available locally.
It really serves the aerospace industry above all[..bike CF accounts for only like 5% of CF consumption within the 13% that goes towards all sporting goods & equipment from the main industry itself!..] and with commercial aerospace and Boeing now occupying the lower East Coast, there are CF specialists and startups everywhere.
You asked if you could do it yourself. Yes--if you are willing to invest & play with a bit of composite gear, it is actually quite simple, albeit a bit of pre-reading over concepts and material is required…how much personal time do you have?
Simple approach, relatively small but critical ding: Repairing a Carbon Fiber Bicycle Frame
TT & DT junction w/HT: Repair of a broken Carbonfiber Bikeframe
I'm USN medical, but I 've worked with aviation side guys and airframers who maintain F/A-18 Hornets & S'Hornets, plus I've fiddled w/CF for years for R/C model planes. ALL the same principles apply, between wrapping casts for broken arms and composite construction.
If you're intrepid, it is as simple as proper surface prep, application of the correct grade fabric/braided sleeve in sufficient layers and cure/localized heat/epoxy removal preferrably via vacuum(..superior to the first vid with the electrical tape/mylar wrap..). CF REALLY can be laminated as such and restore incredible strength.
If you DON'T want to risk the time & effort and DON'T want to submit it to a repair shop(Google ones in the tri-state area and weigh the cost versus the bike's age & original price), then donate it to a shop or charity that collects them for repair.
On this side of the country, we have Ruckus Bikes in Portland, OR; they accept CF frames that appear lost causes with exotic tube shape fractures--then they repair them and raffle or donate them to junior racing teams and start-ups.
There is ALWAYS a way.
Don't give up that easy…esp. if the Trek Dealership/Cust. Svc. won't help or reneges on their so-called 'Buy Back/Replace' policy.
I've been encountering more and more people who have either sent their bike to repair companies, like renowned Calfee mentioned above and other, local outfits.
Granted, many of the well known CF repair & factory names are in CA or the PacNW[..where I live now, used to be a NY'er/NYC messenger a lifetime ago..], but since the whole world is going carbon you have more and more choices available locally.
It really serves the aerospace industry above all[..bike CF accounts for only like 5% of CF consumption within the 13% that goes towards all sporting goods & equipment from the main industry itself!..] and with commercial aerospace and Boeing now occupying the lower East Coast, there are CF specialists and startups everywhere.
You asked if you could do it yourself. Yes--if you are willing to invest & play with a bit of composite gear, it is actually quite simple, albeit a bit of pre-reading over concepts and material is required…how much personal time do you have?
Simple approach, relatively small but critical ding: Repairing a Carbon Fiber Bicycle Frame
TT & DT junction w/HT: Repair of a broken Carbonfiber Bikeframe
I'm USN medical, but I 've worked with aviation side guys and airframers who maintain F/A-18 Hornets & S'Hornets, plus I've fiddled w/CF for years for R/C model planes. ALL the same principles apply, between wrapping casts for broken arms and composite construction.
If you're intrepid, it is as simple as proper surface prep, application of the correct grade fabric/braided sleeve in sufficient layers and cure/localized heat/epoxy removal preferrably via vacuum(..superior to the first vid with the electrical tape/mylar wrap..). CF REALLY can be laminated as such and restore incredible strength.
If you DON'T want to risk the time & effort and DON'T want to submit it to a repair shop(Google ones in the tri-state area and weigh the cost versus the bike's age & original price), then donate it to a shop or charity that collects them for repair.
On this side of the country, we have Ruckus Bikes in Portland, OR; they accept CF frames that appear lost causes with exotic tube shape fractures--then they repair them and raffle or donate them to junior racing teams and start-ups.
There is ALWAYS a way.
11-09-14, 10:15 PM
#12
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And sight down the ST from above. Probe with a long rod which has a hooked end for ID surface irregularities. Andy.
11-10-14, 05:52 PM
#13
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The inside of a carbon frame tends to be a war-zone of epoxy lumps and carbon ridges. You won't be able to tell the difference between that an actual crack going to the inside.
11-10-14, 07:49 PM
#14
Senior Member
Thread Starter
Thanks for all your help. I found two other cracks inThe frame. I am taking the parts off and retiring the frame. A friend gave me the bike. And every part of it was abused the brifters are scrapped plastic missing. The chain was long. All the gears had shark teeth. And the rims have lost there wear indicators. A shame but it's over.
11-10-14, 09:06 PM
#15
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Wow, that's a lot of issues on a bike. Have you had it long? Andy.
11-29-14, 08:26 AM
#16
Senior Member
Thread Starter
A friend gave me the bike. It was his kids 20 something. I saved the bottom bracket for the shimino crank. The frame is in the dumpster. Every part on the frame was in bad shape. Maybe it was dragged behind a truck. Lol
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agold2009
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06-12-14 08:24 AM
