Fantastic job! Thanks for sharing that, I am about to try and fix the rear stay on my 2014 Roubaix so I was very interested in the prep'ing, I'll be watching it again before I do the repair!
Awesome, glad that the video helped out! Good luck on the repair. I've done more since (need new videos) but 2 years riding and competing on the bike, it's absolutely still as it was newly repaired. I saved at least £1000 on the frame!!
Just asking, why dont you put first the epoxy in the carbon and then take of the extra epoxy of it and then put it on the frame and now youll have an dryer carbon. With that systen is it ok.
Hi, completely new to carbon sheets during this video, was winging it😂 as it was my bike I was willing to experiment. Something to think about, thanks👌
Some tips, you should start with a small patch on the frame first, then get larger, which puts the bulk of the repair A. on the crack, and B. Under a single top layer that's easier to sand and leaves a nicer finish. The plastic wrap *should* be able to be hit with a heat gun or hair dryer to shrink. It's far easier to wet out the carbon on plastic dropcloth, then cut it out and transfer it. You can also press it with paper towels to remove excess, but wetting out on a table should keep excess much more manageable. Other than that, yep that's how it's done. Could've been a little smaller on the patch area.
Recomend that you do not handle the carbon sheet with bare hands because you can transfer skin oils to the fibres and cause disbonding in the composite. Use gloves, save grief.
You're not debonding cured resin with oil from skin. Just make sure you clean before doing the repair. His biggest strike here is being mindless enough to sand without a mask
I was aware possibly of doing this as I had no clue on thickness of the original material. I compensated sanding a depth in the first place to take the sheets in it’s place. 3 yrs later, easy over 2000miles, a few triathlons, and Ironman Wales, still perfect👌worked a treat for a few quid😊
Thank you! Yes. It’s quite rough and bumpy when the resin sets so needed a good sand. I should’ve heated the wrap so it compressed more, but I pulled it very tight and it worked anyway👍 Bike still brilliant.
Hi, the bike is absolutely perfect. It’s exactly like the day of repair completion. Paint is perfect, no cracks or scratches. I’m out every week in all weather and have used it to compete in many triathlons and sportives. IronMan Wales booked for next year and this will be the bike for it as that was the plan. Achieve my goals on a budget!
An informative and instructional video, thanks. Some suggestions for future videos: please consider ditching the background music. It's not necessary, It's way too loud, and respectfully, it's distracting because I was trying focus on and understand on *what steps* and processes you were doing and *why.* When making an instructional video, consider that almost all of your viewers know _absolutely nothing_ about this and are trying to learn. Consider providing the instuctional content from _their_ perspective rather than someone who has expertise in doing this. As such, be very clear in WHAT you are doing and WHY you are doing it. The WHAT and WHY provides CONTEXT for the viewer of the ACTIONS required to perform this repair EFFECTIVELY (doing the RIGHT thing) and EFFICIENTLY (doing things RIGHT). Providing this *context* is key to the LEARNING process works for viewers because it drives UNDERSTANDING. Thanks for your consideration and cheers, mate! ;-)
Thank you so much for your feedback. It was my very first video and I will definitely take on board these constructive comments. I suppose I need to break things down even further getting into the nitty gritty and even explaining the small things! Glad you enjoyed, and also will save me time from putting on background music!:)
@@mrmal4713 Thank you for your thoughtful reply. If may suggest: think about it this way: from the perspective of your viewers, what do they need to know so thay can they also develop these skills? It's all about creating a CONTEXT of UNDERSTANDING for them. Just to give some background, I spent 10 years teaching heavy stats and such in Design for Six Sigma courses to PhD-level scientists and engineers. A key thing is getting THEM as my "customers" to see the VALUE in what I was teaching them so they could get their heads around the subject matter and obtain INSIGHT and UNDERSTANDING from what I was teaching them. Feel free to reach out if you have more questions. Cheers.
Wow. Very well. I wonder you sanded frame not much deep. So how after process looks not thick as i thought. Must be carbon cloth layer very thin. Am i wrong ?
Thanks, the carbon cloth is quite thin so used 3. The resin made up the rest. I had to be careful whilst sanding not to go too deep and kept an eye on every layer (you can see them as you sand by using a wet cloth to wipe).
Thanks! Great bike, I ride it regularly and is sweet. Gear changes are super fast, you’d never know that the frame is repaired. I would have put a matte varnish on it tho to protect from my sweat when used on a turbo trainer.😁
you protected the head tube when you painted but you wouldnt had to paint that much if you protected the top tube when doing the repair. at least youre the first guy i saw use sanding blocks. ppl think they can sand a straight edge with their fingers lol
Hola, utilicé una mezcla de resina que venía con el paquete y seguí la mezcla indicada. Esperé 2 días para que se curara porque no tenía una habitación lo suficientemente cálida como era necesaria. ¡Gales hace mucho frío! Diolch
Was crushed in carriage on a plane. Just gently clamped with soft cloth too. Obviously careful like any service/ maintenance stand with professional shops👌
Hi, it came in the pack. Seems like just standard thermoplastic wrap. I’ve also used Sellotape (to speed things up), but it’s more difficult to get off after it all dries. You sand it down anyway but harder work. Apparently there’s some shrink wrap that shrinks with heat.👍🏻
Great thanks. It’s my regular rider with the club and I compete on it. No cracks, no weaknesses, the only thing is my sweat has affected the paint a bit as I decided not to put a finish on it, even matte. Hardly visible but I don’t mind.😁
@@gedahed the bike stand clamp, you clamped it next to the crack. Its very common for those to crack carbon tubes because those tubes weren't designed to be clamped. It's even more damaging became it's right next to the compromised area. Hope that helps you get an idea of what's going on
@@timtaylor9590 ah I see. It wasn’t actually caused by a clamp, it was crushed in a travel bag loading onto a plane. The clamp has cushions to spread any pressure points as I was aware that I didn’t want to damage it myself. It had to be held somehow🤷🏻♂️ and held during servicing thereafter. Also, the closer you hold anything to the work area, vibration and movement is minimised for an easier task.👍
@@gedahed had to be held? otherwise theres no way to maintain or repair a bike if its not held?? interesting concept. if the cushions where cushioning there would be movement, if theres no movement the cushions are fully compressed. if only the thousands of ppl who damaged carbon frames with clamps had cushions.
2yrs down the line and bike is still perfect. Done over 1000miles and many events including Ironman. First project, learned a lot, not bad for never attending a course. Who cares, my bike, saved a fortune. My project brief - absolutely smashed it. My degree and day job allowed me to complete this competently, and many people through kind messages have gained some valuable knowledge, and saved money. This was not meant to be a factory standard job😂
What a pity that there are people who know nothing about repairs and then try to teach others how to do repairs. This video does the complete opposite of what should be done for a safe and lasting repair. 1- Does not finish removing the paint. (doesn't know how to sand) 2- It does not delimit the area to be repaired. 3- Does not replace the number of damaged layers. 4- Does not place patches in stacking sequence 5- Apply epoxy resin on the paint 6- Does not perform thermal bonding. 7- Paint a bike frame with ordinary spray paint etc...etc...etc... Regrettable
Thanks for your comments, I take everything on board. I don’t claim to be an expert on carbon fixes and comment many times that I’m learning as I go along. Love trying things out and more importantly met my brief. A calculated fix as it was only a little compression (I have also repaired another bike structurally around the head, but not shared this). Both bikes are absolutely spot on, no further stress or fatigue fractures, ride regularly and compete on them. Happy with what I managed to fix and if anyone is happy to follow my video then I hope I’ve inspired them and also saved them some cash. That’s what this is all about. Paint wise, this spray was fine, could have used 2K but wasn’t in the brief and although chose not to use a matt laquer it’s perfectly fine still. I cleared more than enough of the area around damage to secure the first sheet. Nothing wrong with my sanding and grading especially not needing a power tool and can’t argue with the immaculate hand finish that was perfectly level around the entire cylindrical profile. Thermal bonding was obviously not an option, and accounted for this. It just proves to me that what I did with this kit is actually not a bad job at all, yes there are procedures and particular graded carbon sheets for a ‘proper’ fix and with training I’d love to learn, but for my personal bike, with epoxy and lamination of sheets you can’t go wrong with what I did here, just a seriously maticulous plaster. I’m not going to explain my background but I am more than qualified to make a judgement on my own bike and share the outcome hopefully so that I can give others the option of going for a Pro repair or save some serious cash at home. Obviously never going to be a fully professional company standard and never claim this. Saved a lot of pennies tho and my bikes are actually safe and lasting, no problems whatsoever. Looks perfect too finished and decals. Aim of the video ✅. I’d be happy to learn from yourself if you have videos. I watched quite a few before attempting this repair and to even learn if it was possible cheaply.
I just dropped my bike this evening and looking at conducting s DIY repair..
Fantastic job! Thanks for sharing that, I am about to try and fix the rear stay on my 2014 Roubaix so I was very interested in the prep'ing, I'll be watching it again before I do the repair!
Awesome, glad that the video helped out! Good luck on the repair. I've done more since (need new videos) but 2 years riding and competing on the bike, it's absolutely still as it was newly repaired. I saved at least £1000 on the frame!!
Just asking, why dont you put first the epoxy in the carbon and then take of the extra epoxy of it and then put it on the frame and now youll have an dryer carbon. With that systen is it ok.
Hi, completely new to carbon sheets during this video, was winging it😂 as it was my bike I was willing to experiment. Something to think about, thanks👌
Some tips, you should start with a small patch on the frame first, then get larger, which puts the bulk of the repair A. on the crack, and B. Under a single top layer that's easier to sand and leaves a nicer finish.
The plastic wrap *should* be able to be hit with a heat gun or hair dryer to shrink.
It's far easier to wet out the carbon on plastic dropcloth, then cut it out and transfer it. You can also press it with paper towels to remove excess, but wetting out on a table should keep excess much more manageable.
Other than that, yep that's how it's done. Could've been a little smaller on the patch area.
Great, thanks for the tips, very grateful and will try this next time. Done another bike after this so next time this will definately help!
Fab, thank you for the tips!
Many thanks
Recomend that you do not handle the carbon sheet with bare hands because you can transfer skin oils to the fibres and cause disbonding in the composite. Use gloves, save grief.
You're not debonding cured resin with oil from skin. Just make sure you clean before doing the repair. His biggest strike here is being mindless enough to sand without a mask
@@veganpotterthevegan agree! That's when I realised I forgot, thinking of the footage over my health!! Grabbed one eventually
Brilliantly done funny thing is I’ve got the same frame with same problem ❤
Happy it helped! I knew it was possible so went all in, learned a bit and is still perfect! Doing the Ironman on it this year😊
Great job. I have a small repair to make and this give me the confidence to do it.
5:17 Looks like you sanded out some of the weave. You can't expect to sand back down to level, if you do, you are definitely sanding out the fibers.
I was aware possibly of doing this as I had no clue on thickness of the original material. I compensated sanding a depth in the first place to take the sheets in it’s place. 3 yrs later, easy over 2000miles, a few triathlons, and Ironman Wales, still perfect👌worked a treat for a few quid😊
Hey great job! Did you remove both tapes then sanded?
Thank you! Yes. It’s quite rough and bumpy when the resin sets so needed a good sand. I should’ve heated the wrap so it compressed more, but I pulled it very tight and it worked anyway👍 Bike still brilliant.
It’s been two years since the repair, how’s the bike holding up?
Hi, the bike is absolutely perfect. It’s exactly like the day of repair completion. Paint is perfect, no cracks or scratches. I’m out every week in all weather and have used it to compete in many triathlons and sportives. IronMan Wales booked for next year and this will be the bike for it as that was the plan. Achieve my goals on a budget!
Hello,
Can you list all of the materials you use. I have a similar crack and your video give me great confidence.
An informative and instructional video, thanks. Some suggestions for future videos: please consider ditching the background music. It's not necessary, It's way too loud, and respectfully, it's distracting because I was trying focus on and understand on *what steps* and processes you were doing and *why.* When making an instructional video, consider that almost all of your viewers know _absolutely nothing_ about this and are trying to learn. Consider providing the instuctional content from _their_ perspective rather than someone who has expertise in doing this. As such, be very clear in WHAT you are doing and WHY you are doing it. The WHAT and WHY provides CONTEXT for the viewer of the ACTIONS required to perform this repair EFFECTIVELY (doing the RIGHT thing) and EFFICIENTLY (doing things RIGHT). Providing this *context* is key to the LEARNING process works for viewers because it drives UNDERSTANDING. Thanks for your consideration and cheers, mate! ;-)
Thank you so much for your feedback. It was my very first video and I will definitely take on board these constructive comments. I suppose I need to break things down even further getting into the nitty gritty and even explaining the small things!
Glad you enjoyed, and also will save me time from putting on background music!:)
@@mrmal4713 Thank you for your thoughtful reply. If may suggest: think about it this way: from the perspective of your viewers, what do they need to know so thay can they also develop these skills? It's all about creating a CONTEXT of UNDERSTANDING for them. Just to give some background, I spent 10 years teaching heavy stats and such in Design for Six Sigma courses to PhD-level scientists and engineers. A key thing is getting THEM as my "customers" to see the VALUE in what I was teaching them so they could get their heads around the subject matter and obtain INSIGHT and UNDERSTANDING from what I was teaching them. Feel free to reach out if you have more questions. Cheers.
very nicely done! Thanks for the tutorial.
Very good work!! Thanks for sharing !
Wow. Very well. I wonder you sanded frame not much deep. So how after process looks not thick as i thought. Must be carbon cloth layer very thin. Am i wrong ?
Thanks, the carbon cloth is quite thin so used 3. The resin made up the rest. I had to be careful whilst sanding not to go too deep and kept an eye on every layer (you can see them as you sand by using a wet cloth to wipe).
use a Stanley blade to scrape paint off its faster and you can see when through the lacquer as giants have very thick lacquer/paint
Great, I’ll try that!
roller it down to get the air out and increase saturation
Great thanks! Will use this in future.
Awesome video! Grt way to get a sweet bike at beginner bike pricing! How has it been holding up?
Thanks! Great bike, I ride it regularly and is sweet. Gear changes are super fast, you’d never know that the frame is repaired. I would have put a matte varnish on it tho to protect from my sweat when used on a turbo trainer.😁
you protected the head tube when you painted but you wouldnt had to paint that much if you protected the top tube when doing the repair. at least youre the first guy i saw use sanding blocks. ppl think they can sand a straight edge with their fingers lol
Hola amigo que tipo de lija se usa para lijar el marco de carbono
Hola, utilicé una mezcla de resina que venía con el paquete y seguí la mezcla indicada. Esperé 2 días para que se curara porque no tenía una habitación lo suficientemente cálida como era necesaria. ¡Gales hace mucho frío! Diolch
Good job 👍
Thanks, hope it helped give you an idea!
you do warry good job btw nice bike.
Slight compression damage: let's compress it some more😂
Was crushed in carriage on a plane. Just gently clamped with soft cloth too. Obviously careful like any service/ maintenance stand with professional shops👌
Excellent 👍🏼👍🏼👍🏼
I have the GIANT 2015 PROPEL ADVANCED SL 2 ROAD BIKE.
um... there is a tape that shrinks when hit with a heat gun.... you might wish to research that.
Thanks, something for the future. Just used this as it was in the pack👍🏻
Hello, what type of tape do you use to plaster the carbon after putting the epoxy?
Hi, it came in the pack. Seems like just standard thermoplastic wrap. I’ve also used Sellotape (to speed things up), but it’s more difficult to get off after it all dries. You sand it down anyway but harder work. Apparently there’s some shrink wrap that shrinks with heat.👍🏻
how is the bike holding up?
Great thanks. It’s my regular rider with the club and I compete on it. No cracks, no weaknesses, the only thing is my sweat has affected the paint a bit as I decided not to put a finish on it, even matte. Hardly visible but I don’t mind.😁
So basically, every carbon frame will sooner or later break?
Not sure, I wouldn’t think so unless it was mistreated or crashed, but fixable most of the time is what I’ve read.
No, that's aluminum
Those frames have some of the worst cable routing of any bike. Should have modified it to run full housing while its all apart.
ppl have np breathing in paint and clear coat
funny you clamp next to the crack that was done by a clamp.
I have no idea what you are on about.
@@gedahed the bike stand clamp, you clamped it next to the crack. Its very common for those to crack carbon tubes because those tubes weren't designed to be clamped. It's even more damaging became it's right next to the compromised area. Hope that helps you get an idea of what's going on
@@timtaylor9590 ah I see. It wasn’t actually caused by a clamp, it was crushed in a travel bag loading onto a plane. The clamp has cushions to spread any pressure points as I was aware that I didn’t want to damage it myself. It had to be held somehow🤷🏻♂️ and held during servicing thereafter. Also, the closer you hold anything to the work area, vibration and movement is minimised for an easier task.👍
@@gedahed had to be held? otherwise theres no way to maintain or repair a bike if its not held?? interesting concept. if the cushions where cushioning there would be movement, if theres no movement the cushions are fully compressed. if only the thousands of ppl who damaged carbon frames with clamps had cushions.
Thanks for your comments. I was aware of possible problems as you mentioned. The foam distributed any pressure points and cushioned accordingly.
I agree, another sub engineer.
What a shame.
2yrs down the line and bike is still perfect. Done over 1000miles and many events including Ironman. First project, learned a lot, not bad for never attending a course. Who cares, my bike, saved a fortune. My project brief - absolutely smashed it.
My degree and day job allowed me to complete this competently, and many people through kind messages have gained some valuable knowledge, and saved money. This was not meant to be a factory standard job😂
👍
What a pity that there are people who know nothing about repairs and then try to teach others how to do repairs.
This video does the complete opposite of what should be done for a safe and lasting repair.
1- Does not finish removing the paint. (doesn't know how to sand)
2- It does not delimit the area to be repaired.
3- Does not replace the number of damaged layers.
4- Does not place patches in stacking sequence
5- Apply epoxy resin on the paint
6- Does not perform thermal bonding.
7- Paint a bike frame with ordinary spray paint
etc...etc...etc...
Regrettable
Thanks for your comments, I take everything on board. I don’t claim to be an expert on carbon fixes and comment many times that I’m learning as I go along. Love trying things out and more importantly met my brief. A calculated fix as it was only a little compression (I have also repaired another bike structurally around the head, but not shared this). Both bikes are absolutely spot on, no further stress or fatigue fractures, ride regularly and compete on them. Happy with what I managed to fix and if anyone is happy to follow my video then I hope I’ve inspired them and also saved them some cash. That’s what this is all about.
Paint wise, this spray was fine, could have used 2K but wasn’t in the brief and although chose not to use a matt laquer it’s perfectly fine still. I cleared more than enough of the area around damage to secure the first sheet. Nothing wrong with my sanding and grading especially not needing a power tool and can’t argue with the immaculate hand finish that was perfectly level around the entire cylindrical profile. Thermal bonding was obviously not an option, and accounted for this. It just proves to me that what I did with this kit is actually not a bad job at all, yes there are procedures and particular graded carbon sheets for a ‘proper’ fix and with training I’d love to learn, but for my personal bike, with epoxy and lamination of sheets you can’t go wrong with what I did here, just a seriously maticulous plaster. I’m not going to explain my background but I am more than qualified to make a judgement on my own bike and share the outcome hopefully so that I can give others the option of going for a Pro repair or save some serious cash at home. Obviously never going to be a fully professional company standard and never claim this. Saved a lot of pennies tho and my bikes are actually safe and lasting, no problems whatsoever. Looks perfect too finished and decals. Aim of the video ✅. I’d be happy to learn from yourself if you have videos. I watched quite a few before attempting this repair and to even learn if it was possible cheaply.
Sounds like you are worried people can do the job and still get excellent results without paying an arm and leg.
That is not a proper carbon repair.
Good enough for a home job, thanks
Another sub- engineer.
What a shame.
The brief - home fix on my personal bike on a seriously small budget. Bike is brilliant 2yrs later, weekly rider and competition. Got ahead👌