Repairing a Huge Crack in a High End Carbon Frame…

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  • Опубліковано 5 січ 2025

КОМЕНТАРІ • 133

  • @JourdainColeman
    @JourdainColeman  Рік тому +3

    Checkout this video next where Rob talks in detail about carbon frames - ua-cam.com/video/CXIpU92mTwI/v-deo.html

  • @prep1989
    @prep1989 Рік тому +26

    I could listen to Rob talk all day. It is so interesting to hear an expert share all their knowledge about their craft. The attention to detail, the passion that goes behind the job... thanks

    • @cwsgt2806
      @cwsgt2806 3 дні тому

      So much the much the expert he said in the beginning regarding a repair to that TCR about the paint gloss can’t be the same as factory WTF is he on about he is flat out wrong and when he discussed wall thickness can’t be achieved by novices hmm it isn’t that difficult actually it’s f’ing simple THINK about it you make it flush on both the interior and exterior to the non damaged surrounding area of where you are repairing if you have managed to not got a convex or concave and it’s flush hmm guess what it’s the same thickness.. if that logic escapes you then let’s start with 1+1=2. Yes he has done a nice job and sure it will be perfect for years to come but he over egged the pudding when it came to skill required. All it took was commonsense and pride in one’s workmanship from beginning to end which does lack these days

  • @edwardkruszon5919
    @edwardkruszon5919 Рік тому +4

    I really want to buy a frame off this gentleman just because of the work ethic in the repair.

  • @DaveCM
    @DaveCM Рік тому +17

    I am absolutely dumbfounded by the Dogma frame. Some idiot spent a lot of money on that frame, wanted a custom paintjob, but was too cheap to pay someone to do it right. They learned their lesson the hard way.

    • @daviddarfdas
      @daviddarfdas Рік тому +1

      I honestly just feel bad for the guy

    • @DaveCM
      @DaveCM Рік тому +1

      @@daviddarfdas I kind of do and kind of don't. He did it to himself.

    • @Broodjemetbeleg
      @Broodjemetbeleg Рік тому +1

      ​@@daviddarfdasI don't lol if you can afford one why cheap out?

  • @JFomo
    @JFomo Рік тому +7

    Those carbon repair guys should have their own youtube channel. I find this all very fascinating.

  • @TG.Innovation
    @TG.Innovation 10 місяців тому +3

    The white wrap on the repair will negate any non-thermal curing effect by the infrared wavelength. It absorbs it and transmits it as heat to the pre-preg carbon fiber. Pre-preg carbon fiber typically cures with heat, and some as low as the 50-60° C range. The name thermoset resin implies heat cure - heat does not antagonize the process.

  • @mrrodriguezHLP
    @mrrodriguezHLP Рік тому +5

    I love my carbon, but this video is convincing me that maybe my next frame should be titanium.

  • @stephenbarnes5850
    @stephenbarnes5850 Рік тому +10

    Love these videos with you and Rob so interesting, watch all your content keep it coming appreciate your hard work doing these videos

    • @JourdainColeman
      @JourdainColeman  Рік тому

      Thank you... I appreciate your comment. Good to hear you are enjoying all the content!

  • @jamesmckenzie3532
    @jamesmckenzie3532 Рік тому +6

    Looking forward to the build. I hit something and put a good sized divot into the down tube. It passed a tap test. The repairer said it was removal of epoxy and the carbon was not disturbed.

    • @JourdainColeman
      @JourdainColeman  Рік тому +1

      Good to hear there was only minimal damage!! 👍🏽

  • @bigwave_dave8468
    @bigwave_dave8468 4 місяці тому

    Nice to see a skilled craftsman at work.

  • @mustaphasalim2577
    @mustaphasalim2577 Рік тому +2

    Thank you for sharing another amazing, educatiional video J. Thank you Rob for sharing the knowledge and showing us how strong carbon is.

  • @tomrachellesfirstdance7843
    @tomrachellesfirstdance7843 Рік тому +21

    I have always heard carbon frames are less fragile than people say, but wow, I thought your arm was going to give out before the frame 😂

    • @JourdainColeman
      @JourdainColeman  Рік тому +3

      I thought it was going to break far easier as well. I was surprised when i literally had to hit it full power!

  • @pawelurbaniak2844
    @pawelurbaniak2844 Рік тому +3

    I decided tackle my TCR Seat stay and fixed my crack without leaving a trace of damage... I was back on the bike a week after the accident. Very different material from anything else I worked with before and its super soft when you sand it! it goes fast so you need to be careful and pay attention. I highly recommend anyone to try it themselves, its not as difficult as it may seem. Im sure the Thickness is not ideal compared to original as i sanded down the entire circumference of the tube and used single multi layers by wrapping it around... but Im certain its stronger then original.

    • @olegiakovlev2757
      @olegiakovlev2757 Рік тому +1

      Hey, I did the same with my cube MTB bottom bracket, works more than 2 years.

  • @gabrys187
    @gabrys187 9 місяців тому +1

    I would like to know if the frame shown in 1:30 is repairable, and I mean both damages-the cut and the headtube.

  • @patrickkennedy2533
    @patrickkennedy2533 Рік тому

    Myself, being a carbon fiber bike owner , I'm glad I saw this video

  • @garysladek9110
    @garysladek9110 Рік тому +2

    Great information. I'm looking forward to the build and ride.

  • @paulstuart9465
    @paulstuart9465 Рік тому +26

    Its fascinating to see the process of diagnosis and repair. I used to think carbon fiber frames were extremely fragile to knocks. Clearly theyre more durable than i thought. It would be nice to know the estimated cost for this repair for example. To give people a basic idea. Then we'd know if we have to sell a kidney or something.

    • @JourdainColeman
      @JourdainColeman  Рік тому +3

      I was very surprised at how much force was needed to break through the carbon! As for the price, I'm not really sure, feel free to drop them a message through and I'm sure they can quote - carbonbikerepair.co.uk/wp/

    • @Ehmets
      @Ehmets Рік тому

      @@irfuelit must’ve hit pretty hard. How bad was the crack?

    • @tonyhowes669
      @tonyhowes669 Рік тому +3

      That is pretty interesting. So he uses an epoxy resin that is triggered with infrared. Has a few types of carbon weaves and thicknesses. And he really only wraps it in plastic wrap, knowing hes going to sand the shit out of it again later, removing half his material. No v bag. It may be precise for wall thickness and some knowhow on the intended construction pattern with uni vs cross weave... but the actual work is same as carbon or fiberglass boat repair... high end boats... not nasty fiber mat, but e glass , s glass, uni, etc... pretty sure i can fix a carbon bike now. Cool

  • @robertmcfadyen9156
    @robertmcfadyen9156 8 місяців тому

    When Jourdain struck the fluorescent yellow frame , it bounced over the mat a fair bit on the benchtop which absorbed half of the hammer strike kimetic energy . I did this same thing with the top of the seat tube resting against a large block of hardwood held firmly by a workplace assistant . The frame fractured much more readily .

  • @ilpreterosso
    @ilpreterosso Рік тому

    One of the most hardcore road biking content creator 👍

  • @johndef5075
    @johndef5075 10 місяців тому

    I was surprised how much abuse that frame took. Gives me some reassurance as Im building my first carbon frame mtb.

  • @BenSambrook
    @BenSambrook Рік тому

    Fantastic video, I'm looking forward to the rest of the build series.

  • @packfan1946
    @packfan1946 8 місяців тому +1

    If one of the main tubes, like the top tube, is broken in two by torsional forces, can that be repaired to the same structure and strength of a new frame??

  • @mr.smooth6173
    @mr.smooth6173 Рік тому +2

    Cracking video Jourdain 😄

  • @chevyyyyyyy
    @chevyyyyyyy 5 місяців тому

    A key wisdom is to not to add too much or too little material, just the correct amount in order to neither stress the surrounding original material nor the patch material.

  • @danielpetrucco6513
    @danielpetrucco6513 Рік тому +5

    How is this not about heat if the repaired portion is wrapped with toilet paper, etc? Infrared beams can't directly hit the frame.. Am I missing something? Anyway, great video:)

  • @NoahStephens
    @NoahStephens 10 місяців тому +1

    The hammer assault was reassuring. Carbon is pretty tough.

  • @alan_davis
    @alan_davis Рік тому +4

    There isn't anything 'special' about the repair process, the reason they aren't showing it is because, frankly, it's probably a little bit agricultural (maybe he wants to hide an air bladder insertion method or something, but it's all normal techniques in the compoaite repair world).
    As for retaining the wall thickness the only way to do that is to end up with a (slightly) weaker frame overall - well within safety factors though. And grinding down the actual outer layer of carbon mat isn't exactly great for the strength/stiffness of the finished composite/matrix, you end up with the equivalent of a chopped fibre rather than a biaxial cloth.
    You'd have to be pretty damn keen on your frame to justify the cost too.

  • @timtaylor9590
    @timtaylor9590 Рік тому +6

    if that vacuum table isnt pulling out my nose hairs out im wearing a mask, those particles from the grinder will fling right in your face

    • @endokrin7897
      @endokrin7897 Рік тому +3

      Lol.
      Yes, if he's getting paint and carbon flung up onto his shirt, he's getting small particles into his mouth and nose.
      But that's just being nit picky. The video was cool....

    • @timtaylor9590
      @timtaylor9590 Рік тому

      @@endokrin7897 its worse than riding a bike without a helmet because its guaranteed causing harm especially when doing every day the effects are sure to come.

  • @schrodingerthecat
    @schrodingerthecat Рік тому

    Awesome video, looking forward to the build!

  • @AndrasArkovits
    @AndrasArkovits Рік тому

    Does anybody know more about these epoxy paint systems? Do they use epoxy primer and base coats and after acrylic or polyurethane clear coat or the clear coat is also epoxy?

  • @rickycciccna
    @rickycciccna Рік тому

    Beautiful and relaxing video. The thing that I love most is that's my bike, bought used less than 1 month ago. Hope will never need a carbon frame repair 🤣

  • @tylerdowling
    @tylerdowling Рік тому

    Truly expert work.

  • @SpacebarToJump
    @SpacebarToJump Рік тому +43

    “We don’t wear masks because the vacuum table draws all the particles out” said the man with the shirt covered in carbon dust.

    • @ssenssel
      @ssenssel Рік тому +5

      I'm glad I'm not this guy's lungs

    • @nickrand8234
      @nickrand8234 Рік тому +3

      I was thinking no masks??? As watching that sanding, ,you’re gonna suck up a shit ton of fibres before any ventilation sees it!

  • @robertmcfadyen9156
    @robertmcfadyen9156 8 місяців тому

    A common cause of carbon fiber frame failures is when tubing is crushed by a hard object or dropping a road bike down a flight of hard concrete stairs . I have had a few failures come in involving falling down these flights of stairs at railway stations , for example .

  • @blakegoodwin3591
    @blakegoodwin3591 10 місяців тому

    Masterclass content.

  • @e.garcia9940
    @e.garcia9940 9 місяців тому

    What would be the cost of this repair ? Looking to get bike repair but can’t find a shop in Arizona .

  • @potenzaintertradeco.ltd.6970
    @potenzaintertradeco.ltd.6970 2 місяці тому

    Here in thailand it's a guy who does formidable jobs on repair. He also repaint. Like there was nothing happened

  • @christofs-a1834
    @christofs-a1834 9 місяців тому +1

    I am missing something? I can't find video two. If there is one that is 🤔

  • @nicokop7078
    @nicokop7078 Рік тому

    Very interesting video,great information.

  • @Saladon89
    @Saladon89 6 місяців тому

    Thats pretty cool, how much do these type of repairs cost?

  • @Haha-mi8uv
    @Haha-mi8uv 5 місяців тому

    Just got frame from courier. And my frame crack. Can i repair sir?

  • @wenschobert
    @wenschobert Рік тому

    I really love your videos with Rob... With all of his knowledge I would love to see him "design" and construct bikes for different riders... (thinking about the average rider, big heavy bloke and a tiny 30 kg Junior...) If you'd make this happen I'd actually take two of the frames ;) (the average rider would be yours?)

  • @garlic.naan2
    @garlic.naan2 Рік тому +1

    hey jourdain great video as always, was wondering how much this whole process costs?

    • @JourdainColeman
      @JourdainColeman  Рік тому

      Glad you enjoyed the video. I'm not 100% sure on costs to be honest. I'm sure if you drop them a message the will be happy to help though carbonbikerepair.co.uk/wp/

  • @frederickstaana1269
    @frederickstaana1269 Рік тому

    very educational video. thumbs up!

  • @matthewbarnes472
    @matthewbarnes472 Рік тому

    I'm only 4:29 into the video but pleaseee tell me you're going to show us more of that Kuka robot cell!

  • @MrIanD1
    @MrIanD1 Рік тому

    Now can you repair a Bianchi with countervail technology?

  • @michaelzhang2532
    @michaelzhang2532 10 місяців тому

    its it ok to breath carbon dusts?

  • @Jonas_GD_1234
    @Jonas_GD_1234 Рік тому

    Could you try to crush a carbon top tube with the clamp of a repair stand?

    • @JourdainColeman
      @JourdainColeman  Рік тому +1

      THat's a good idea! When i have a frame that I can crack I'll do a little experiment

  • @guinnesslover2970
    @guinnesslover2970 11 місяців тому

    wet layup !!!!yay brilliant

  • @jeliano
    @jeliano Рік тому

    very interessting! you're doing good promos for carbon. been concerned bout the seat post area though.

  • @ΑλέξανδροςΓεκίλης

    My heart is aching.

  • @andreworoszvary1608
    @andreworoszvary1608 Рік тому

    So would you be pretty confident in the new trek madone frame holding up long term? I'm looking at purchasing one and that's my only concern that gap below the seat post causing the top tube to crack haha

  • @TimR123
    @TimR123 Рік тому +1

    Really surprised and how little damage that hammer did for so long. I am quite certain that an aluminum tube would have been seriously damaged far sooner.
    Another vote for asking some level of pricing on these. I’m sure there is a lot of “it depends”. Maybe a video wandering through the graveyard again with a “this bike had this damage and we’d do X and it would be quoted at Y”. Or “this repair (done by trainee) would have cost X”. It would be good to just have some sense of the range for education.

  • @joemoya9743
    @joemoya9743 Рік тому

    Excellent.

  • @smithvaldez9568
    @smithvaldez9568 Рік тому

    Do a ltwoo erx review

  • @leonschumann2361
    @leonschumann2361 Рік тому

    what l would find interesting, how they deal with carbon dust and how you have to handle carbon fibra waste and so on

    • @MyRestoration1
      @MyRestoration1 Рік тому +2

      @@irfuelnot true. When ground up it is used as additive for all sorts of epoxies as just 1 example.

  • @matteo.ceriotti
    @matteo.ceriotti Рік тому

    Impressive.

  • @WIPEYOURLENZ
    @WIPEYOURLENZ Рік тому +1

    And I was worried about clamping my bike on my rack.

  • @timtaylor9590
    @timtaylor9590 Рік тому

    he took wall thickness from outside the repair area. i wonder how they get compression when theres a hole or soft spot. maybe by doing a thin layer to cover the hole then layer over that. also im not buying that wall thickness is precise without a measuring tool and constant tuning with sand paper by hand, a few back and forths is making a big difference. and the type of carbon is a mystery so the weave, weight, type, total of layers, type of resin, those are all unknowns so even if you get similar thickness its so much different than it was originally. another thing, the damage was to one side of the down tube, and so the repair was done to that side. i would say make the repair symmetrical since the repair changes so much of the bikes characteristics at least it would be a symmetrical change.

    • @endokrin7897
      @endokrin7897 Рік тому +2

      Good points! I don't have answers. I guess his secret process would answer those questions. It seems like you don't know what you're getting when you get a carbon bike. What technology did the manufacturer use? Their own factory? A generic factory in Taiwan that makes frames for several OEMs? A cheaper Chinese factory?
      Really, this video just makes me want a carbon bike even less.
      I've got a 25 year old aluminium bike and absolutely zero frame issues. The issue I have is components aren't compatible much any more, since it's an 8-speed.
      I'd love a carbon bike, but would not love a damaged carbon bike with a repair. It would be a nagging point and I'd never fully trust it. I'd always be thinking about it, like a pebble in your shoe.
      Ultimately, I want a custom steel or titanium frame. These carbon bikes are strong and it's surprising how resilient they are, but this whole process makes them look like toys. Cheap (expensive) disposable toys.

  • @theonemanopinion2764
    @theonemanopinion2764 Рік тому +1

    Ok I have a question for Rob.. how can the new repair be the same wall thickness as the rest of it, when not all of the old material was removed? there was a flap of old material that was poked in. That part there will only be bonded to the layer above it. So technically it will be a layer thinner.

    • @carbonbikerepair1
      @carbonbikerepair1 Рік тому +9

      Thank you for your question. The video it edited to show the process to a point. I wish we could show you the whole process and maybe one day we can but for the moment not all our processes are public knowledge. Let’s wait to see what Jourdain says about the ride experience. I have asked him to be as honest as he can about the bike which I’m sure he will.

    • @jamesmckenzie3532
      @jamesmckenzie3532 Рік тому +3

      ​@Carbon Bike Repair Thanks for the explanation and I appreciate what you did show.

    • @SuperDodoe
      @SuperDodoe Рік тому +4

      Could be that an inflatable bladder was inserted into the tube to put pressure on any delaminated layers from the inside out

    • @tonyhowes669
      @tonyhowes669 Рік тому +2

      Rocky mtn uses plastic bladders in molds to push back from inside. Allows for v bagging and better resin impregnation.

  • @mattmorrison9379
    @mattmorrison9379 Рік тому

    If a finish is applied properly why does one have strip the old paint off? When doing a color change on a newer automobile one dosent strip all the paint off. Is this for weight sake on a carbon frame? Definitely not for adhesion.

  • @ZCJKF13GDG4
    @ZCJKF13GDG4 Рік тому

    Apparently the guy with the sanded thru frame was getting into the submarine business

  • @martinhovorka69
    @martinhovorka69 Рік тому

    It doesn't take that much effort to crack the carbon frame, just a small bump to the rear wheel frame on the downhill and even a top brand frame will crack. Carbon is very fragile and is too expensive to buy and repair. My old aluminum bike has lasted two decades so far, while the high-end carbon bike only lasted three days...

  • @glennoc8585
    @glennoc8585 Рік тому

    Shame about that emonda. Interesting facts.

  • @madyogi6164
    @madyogi6164 3 місяці тому

    Wow! 👌👍Amazing skills. Definitely worth saving the name just in case. Though I hope, I will never have to use the service. Sadly, Murphy-s laws are against us - carbon freaks.

  • @robertmcfadyen9156
    @robertmcfadyen9156 8 місяців тому

    To do this work in my country , you need to complete a 3 year diploma unlike Rob . The diploma has a part time work placement component of 18 months .

  • @robertmcfadyen9156
    @robertmcfadyen9156 8 місяців тому

    A qualification in Industrial Design does not recieve recognition of prior learning for the fiberglass and carbon fiber diploma package in Australia .

  • @edscoble
    @edscoble Рік тому +1

    Can you make your content inclusive by formatting the auto captioning into closed captioning please? it is extremely hard to watch it relying only on the auto captioning sadly (I'm Profoundly Deaf)

  • @toroddlnning6806
    @toroddlnning6806 Рік тому

    they didnt show how he did the repair only the dmg and the result

    • @JourdainColeman
      @JourdainColeman  Рік тому

      The process is a company secret. Out of respect to Rob I went outside at this point so I don't even know

    • @toroddlnning6806
      @toroddlnning6806 Рік тому

      @@JourdainColeman ok, but that doesnt bring the world forward. So many carbonframes needs repair. He is hiding it because it is trivial for everyboddy to do it themselves. He is probably just putting something hard behind that he can remove later, like they fix the sailboat hull with fiberglass.

  • @newunderthesun7353
    @newunderthesun7353 Рік тому

    No, you don't need a mask with that excellent exhaust table, but you do need ear protection with those air tools. No excuses.

  • @giorgiofarci5084
    @giorgiofarci5084 4 місяці тому

    Buonasera, mi chiamo Giorgio, si ogni in Italia, vorrei seguirvi , ma non conoscendo la vostra lingua, non posso farlo, perché non inserite i testi in italiano, grazie mille

  • @ageofsigmar7236
    @ageofsigmar7236 Рік тому +2

    that’s what we call dead sound 😅

  • @NoahStephens
    @NoahStephens 10 місяців тому

    I would love to know what the carbon fiber repair expert thinks of this DIY home repair: ua-cam.com/video/MfIIVMNxocw/v-deo.htmlsi=OcUdc_307-wdcwUg

  • @danielcafferata1318
    @danielcafferata1318 Рік тому

    Giant's size medium equates to a 54, bruv...

    • @JourdainColeman
      @JourdainColeman  Рік тому

      👍🏼 ideally I would have a 54 but you have to take what you can when searching a carbon graveyard 😂

  • @WioWio-sf5pc
    @WioWio-sf5pc Рік тому

    bravooo

  • @blitzy19
    @blitzy19 Рік тому

    giant bikes are very strong

  • @siriosstar4789
    @siriosstar4789 23 дні тому

    carbon is just not worth it.
    considering the potential for damage and the high cost .

  • @fukairen9601
    @fukairen9601 Рік тому

    According to my experience of repairing model glider(also carbon composite made), repair of a bike frame is not unacceptable, maybe it will get even stronger. One of my friend cut an aluminium folding bike frame to half, short it and bond it together with carbon, to fit his wife's height, and the frame worked 5 years until now. The only thing you need to worry is that if it was repaired by really craftsman, and someone will fraud it as non-damage.

  • @paulsymons562
    @paulsymons562 6 місяців тому

    A downdraft table only works if you keep the area you are grinding over the table and close to the extraction. Not waving around off the edge of the table up in the air. Honestly all the dusty shit on his tshirt shows hes not using it properly. I'd probably wear a mask anyway if I was doing it every day. You only get one set of lungs.

  • @cwsgt2806
    @cwsgt2806 3 дні тому

    A couple of things- you stated earlier on regarding a gloss paint finish can’t match the factory GLOSS HMM are you f’ing kidding me seriously LMFAOL you are flat out wrong! Second point “novices can’t get the wall right hmmm you simply sand down the repaired area to match the surrounding undamaged areas (matching the profile” seeing you didn’t add carbon inside the frames tubing anymore than what would be flush to the inner non damaged surrounding area then it would be a given it’s the same thickness DUH

  • @kalijasin
    @kalijasin Рік тому

    if carbon fibre is so strong then why it crack so easily?

  • @PunxTV123
    @PunxTV123 Місяць тому

    they dont wear mask? i though carbon dangeroues on breathing

  • @srjnrwyn
    @srjnrwyn Рік тому

    esto es un crimen

  • @Emtbtoday
    @Emtbtoday Рік тому

    Terrifies me carbon frames

  • @trentvlak
    @trentvlak 5 місяців тому

    Same wall thickness, no full wrap, won't show the process. I don't buy this for a second.

  • @pruzsiaron95
    @pruzsiaron95 Рік тому

    You cut out the only interesting part of this video. It is no more than a clickbait like this.

  • @mikequinn
    @mikequinn Рік тому +1

    "Carbon is not as fragile as people think" he says standing in a workshop full of damaged carbon bikes.

  • @janeblogs324
    @janeblogs324 Рік тому +1

    Bloody lefties. Who'd you catch that from mate?

  • @qibble455
    @qibble455 Рік тому

    God the audio was the worst. Good video otherwise

  • @typhoon420
    @typhoon420 16 днів тому

    he is a special liar about carbon repair

  • @apolloniusbeitsman5444
    @apolloniusbeitsman5444 Рік тому

    I don't think a repaired frame will ever be safe to ride.

    • @tekjim
      @tekjim Рік тому +1

      Mate, they repair carbon fibre on aeroplanes!

    • @theinstigatorr
      @theinstigatorr 9 місяців тому

      As long as they’re Boeing aeroplanes