Dear friend, I am a graduated Polymers and Composites engineer and did R&D for motorsports some years ago. This guy rocks, knows his business and you did a great set of 3 videos with him. I hope to see more. Thanks for this.
my Dad worked in the Black Box at Boeing for 30 years. The Black Box is where a lot of the top secret and military work is done. When I showed him my Kestrel back in 1992 he laughed. He said the bike industry was lightyears behind the aerospace industry in terms of understanding carbon. Your guy is spot on. Pretty much said the same things my Dad said way back in the day.
I always enjoy listening to the industry dudes that have no problem telling it like it is. There's the marketing tech that sells bikes and then there's the tech that makes a good bike. Thoroughly enjoyed that.
One of your best videos ever! Amazing info! You could of made 5 videos out of that hour interview. I think you should do multiple videos about carbon rims etc. with this guy. One video would be a waste for your channel. You could do a weekly video on different products etc. and keep the viewer wanting more. The turn around to get a bike fixed by Raoul may be up to a month after this video. Also like Shane Miller's video's!
Ok, carbon can more prone to manufacturing defects, damaged during installation of components, damage during handling and in a crash. Yes, I would choose carbon??? I can understand if you race and every gram could count in a race finishing position, but I am a middle age guy who is more concerned with stability and ride quality. I am looking at buying a gravel grinder and will probably keep the bike for at least a decade. I also do not want to worry about gravel damaging the frame while riding. Steel or titanium seems like a more logical choice.
Johnny Woo You are absolutely right! I bought 2 titanium frames back in 2003.One is my winter bike with son and b& m lights,the other one was my lightweight project and with around 8 kg it is about 2kg lighter than the winter bike(60cm frames!). I did never regret that buy-both look brandnew and they also ride like brandnew.Outstanding performance. You can hit the tubes with a hammer and you will barely see scratches.Best bikes i’ve ever ridden-the flexing is perfect for the bad roads i’m riding,bad weather doesn’t affect me anymore. And at age 17 years there’s still value to the frames.And maybe after my death someone will decide to turn them into a ✈️ plane. You can also buy them second hand🤙
humanISvegan definitely! I’m on titanium roadbikes since 2004-i got two identical frames with different setup. One like a randonneur and the other one as a lightweight.They are still like brandnew,although both are ridden hard. Summer bike and winter bike.Awsome belgian handcrafted masterpieces! But these days you can also build very light steel frames,very stiff with oversized tubes.I also have a steel bike just to have this special feeling on the road! 🤙
Aluminum does have fatigue life lower than steel, and is more prone to ride harshly, although my 90s Redline Conquest aluminum Cyclocross frame rides really smoothly. My 2018 Raleigh RSX aluminum rides hard and stiff, though it's fast. My favorite ride of all is my '95 Merlin Extralight titanium- very very nice.. Many experienced for decades riders such as I will prefer Ti and steel.
Maven, you only got the tip of the ice berg with Raoul. The conversations I have enjoyed with him over the years are some of the most vast, comprehensive and they can get deep. Raoul is awesome is he's a gem in the industry and he also rowed and has do some many of his own physical testing in rowing and cycling, endurance and extreme ways to build capacity mentally and physically. Just important not to give him coffee because he gets fasts and crazier. Great interview and Raoul is truely awesome.
I pointed out the photos of you on the TT bike on the way out mate. Fitting you within the UCI regulations had to be one of the greatest engineering challenges of the last decade for sure! ;)
geeky!!! i love it ! thanks. i bought an 11 years old canyon ultimate frame on ebay. 12k km later, everything is ok. i cannot see myself going back to alloy , even if in my beautiful country there is no such thing as carbon repair...
Clone that guy! Great video. I have a carbon eyelet to build up with epoxy and I knew that it was best to do it before the humidity of summer started. Too late now; will wait for winter. I used to ride "C7 High Modulus" Fuji SSTs. I had some gnarly crashes in both a 2009 and 2010 model, but never suffered a crack. Of note is that the drops on those Fujis are precision cut aluminum, thus requiring an AL-Carbon mechanical interface. I sold my Fujis and replaced them with BMC 2010 and 2011 Race/Team Machines. When he said, "if you are bombing down a hill at 80kmh, you are not thinking about your cool paint job," I was smiling in full understanding. I bombed down Morongo Canyon at just that speed with a 30 pound backpack loaded with water and food. I did it in the BMC that he cut in half and used to decorate the wall. As he said, inspect your machine as best possible and grow to trust if you buy it second hand. None of my newest BMCs have been on the big hills in town yet. The one that I used on Morongo, I gave to my young nephew.
This is the problem when you have one guy who is a self professed guru in a vacuum. He's half right about a lot of things- but he is quick to fill in techno babble with the rest.
I don't have a single carbon thing on my bike and I watched all of it, and the other vid on wheels. Videos with this guy could be the most information-filled, BS-free videos on carbon and bikes on UA-cam. Thanks for making it and thanks to Raoul for his time, I bet he is a busy man.
Really great discussion on this one, Mark. Fascinating to get Raul's perspective - I'm a physics major with an engineering background and an experienced cyclist, so I thought this would be old news, but I learned a ton of new things about some of the practicalities and challenges facing the bike industry in carbon layup. So refreshing to hear the insiders angle, absent of a bike company's marketing department. Thanks for this!! As always, keep up the great work brother.
I know this is an old video but so informational! I learned a lot and very entertaining. Gives me a lot to think about before purchasing a used CF bike. Thanks for posting Mark.
Best vlog to date from a insider point of view. No BS and just the facts. Could have kept watching for hours. Of course I'm now scared shitless of my repair on my carbon P2 that I race in a 70.3 tomorrow :-) Also for other repairs guys, they do not know what they do not know. Which is was the scary part for me. They are not trying to do a bad job more the opposite and the end results looks good. Really top notch stuff.
+Fredrik HL but I phoned every 6000+ viewers who watch it and they personally told me "Hi Marty. Yes, I paused the video at the point where he spoke about carbon wrinkling and checked my carbon bike instantly. Thanks for the call Marty. By the way, how did you get my number? Bye." It took a while Fredrik HL. I hope you believe me. I know Fergal Manergal does.
Very interesting topic, thank you for sharing this with us all! Also, as a Canadian, I got unreasonably stoked upon spotting that Norco Sight frame hanging up in the background, didn't really think Norcos were sold much in other countries.
Awesome Video, not that I have a carbon fibre bike yet, but plenty of knowledge bombs in this video. My only bike is a 1975 Alan, quite flexy slightly too big for me, but it is what I ride on for now and I have fun :D Would be so great to hear more from this guy, Raoul, so much knowledge without marketing BS. thank you Maven.
That was an incredibly informative video!! I could watch you three talking over coffee for a couple of hours straight! "The carbon TEDcycling Talk". Thanks for taking us with you, really looking forward to the next part!
Really interesting discussion about the carbon wrinkles...bike industry seemingly getting away with a second rate product? or do the demands of cycling not create enough stress on the frame for the wrinkles to be a major issue?
J S company's don't give a fuck, as long as it meets industry standard, Hell who cares anyway we're the dumb ass people paying 5_10,000 Dollars on a bike. I would pump them out too.
This video is more valuable to cyclists at all levels than all the "best new bikes" reviews put together, IMO. Well done. As pretty as some of these machines are, I feel it's important to remember that we trust them with our lives. It seems you have found a reputable and knowledgeable source of information who has been good enough to share some of that knowledge with the rest of us. Thank you, Mark, and thank you, Raoul!
great content Maven, as an engineer and a cyclist I back up his statement all the way , I also do my own carbon repairs at home but it is great to have people who know what they talk about .. there is so much false roumers about CF in the cycling world that needs to be eradicated....
I never comment on your videos (though I watch every one) but felt the need to this time because this is awesome. Super informative and one of your best vids. Thanks, Mark!
QUESTIONS for your next session with RAOUL: 1. Can Raoul discuss galvanic corrosion between carbon and aluminium in carbon bikes, especially between alloy nipples and carbon rims, or carbon frame and alu seat posts (e.g. nipple corrosion in Enve wheels). Apparently in the Dreamliner aluminium is not allowed to touch carbon anywhere. 2. Raoul’s views on use of nipple washers in carbon wheels, does carbon need them? Do they make a difference? 3. Can carbon handlebars fail from general age and fatigue? I use them for both road and MTB. Should they be replaced after a while even if never in a crash? Is it possible for Luescher Teknik to run a set of bars through ultrasound as a service for their customers cost effectively? And thanks for your hard work on the vlogs Maven.
Well done with the educational vlog! My knowledge was very limited regarding carbon fiber as it pertains to bicycles and Raul put on a great class for all of us. Doing these types of vlogs is very much appreciated. I would definitely love to see more.
Unreal vlog! This guy is amazing but has me worrying about my bike :/ please try get a longer interview with him you could listen to him for days!! Thanks Maven keep up the great work!
This was absolutely wonderful! I wish more people would do videos like this! Keep them comin' mate, you're well on your way to becoming a force to be reckoned with in the UA-cam cycling world!
that's probably the best video I've seen on the subject on carbon bikes and their construction, like you could have listened to more. Bit shocked by all the high end brands that have issues but always been told that all frames are made in the same factory's. Be interested to see the outcome of your bike as I own a bianchi myself, keep up the good work.
This is a great vlog Mark, getting some real information to the people that isn't the information we get from bike shop. looking forward to the vlog about carbon wheels and the chines copies. More videos like this would be great, I'm looking forward to seeing how the bike turns out.
Great vid Maven thoroughly enjoyed it! Raoul was such an interesting bloke, could listen to him for hours! i am with one of the other commenters: i rarely listen to a 30 min blog video from start to finish but this was great! Thank for your videos and time you put into them, the quality and content is fantastic. Have a great weekend mate! Brad from Brissie 😆 😆
Interested to see the episodes about the different types of carbon manufacturing and comparing Chinese and Taiwanese carbon. Great idea for content. Keep up the good work. Love the channel.
Fwiw, not only your most informative vlog I've seen but the most informative bike video I've seen. Kudos man - keep 'em coming! Another area that would likely be helpful for viewers, once your done with carbon wheels, is the subject of carbon seatposts, stems and handlebars. Loads of discussion on whether to use carbon stems so I'd be game to hear more on these components as well.
Although a little rough around the edges, this video on carbon fiber is one of the most informative interviews on the subject, bar none. Think seriously about making this into a formal presentation on the subject. You guys should be discussing science applications for composite technologies. This format is very exciting and not at all stuffy or "corrosive." For once science applications are interesting in this format. Could you make this into 10 episodes? Thanks again, Charlie Walker San Diego, CA
I have an old Trek 1220 which I like. But I'd love a used or new carbon road bike. But I lack funds and bike knowledge, which is why I came here. There sure seems be a lot to know and learn.
This guy is 100 percent correct I work at spirit aero. We build the 737 fuselage. Along with the 787 cockpit section. Aluminum planeshave a 30 year life only because of the coatings on the aluminum. If not that time is cut in half. 787 is all carbon and some areas are near a foot thick but so strong.
A very informative video, this man has an impressive amount of experience. I wonder where in germany we have such an experienced workshop for carbon bikes.
Thanks Mark for this extremely educational video. Learnt more about carbon here than any other big budget documentary. Love it, keep more of these videos coming.
Excellent presentation. It is refreshing to see and hear guys like him. Obviously he has good experience, knowledge and enthusiasm. Good business on today's growing sport.
They don't make fighter/passenger aircraft undercarriage struts out of CF, they make them out of titanium, which is where Litespeed, Lynskey and Moots got their start. They're both good, but my titanium bike will be around decades after all these unrecyclable CF bikes and wheels are in the tip.
Thanks for the comments. The landing gear is often made of steel, the Aermet alloy was created for F18 landing gear. Carbon is good for some things but not all things, the same as metals, that's why there are no good Ti forks available. Also note that they typically do not weld structural metal parts on an aircraft. There are plenty of metal bikes that have cracked at the HAZ around the welds. The recycling is problem with lots of research going into it right now.
Does heat treating after the welding on metal bikes (i know steel is sometimes brazed so isnt affected in the way welded steel is) reduce the cracking problem around the heat affected zone, or is the area around a weld always going to be a bit weaker?
I made 64 and 128 channel pre-configured ultrasound scanners for testing rocket skins… it works really well but, in the end the best jigs were the C-scan robots with laminar squirter tips, as they are overlapped continuous and flaws like bubbles can be resolved to nearly micron scales. However, to really see important flaws such as molecular voids, scanned X-ray is the way to go.
Dear friend, I am a graduated Polymers and Composites engineer and did R&D for motorsports some years ago. This guy rocks, knows his business and you did a great set of 3 videos with him. I hope to see more. Thanks for this.
I learned a ton from this, good stuff.
@@LuescherTeknik Quick question. What is the model and type of transducer you are using for crack inspection on carbon bikes?
Dude can you help me out ? I have a question, regarding one Carbon Full suspension ebike frame, i'm interested in..
LT is the best engineer talking about bikes on UA-cam by a mile, thanks for this 👍.
This gentleman is not only a talented carbon bike healer, he is also a prolific classical music concert conductor
I thought this was going to be boring, but I could listen to this guy all day long..
my Dad worked in the Black Box at Boeing for 30 years. The Black Box is where a lot of the top secret and military work is done. When I showed him my Kestrel back in 1992 he laughed. He said the bike industry was lightyears behind the aerospace industry in terms of understanding carbon. Your guy is spot on. Pretty much said the same things my Dad said way back in the day.
Hopefully make progress
I always enjoy listening to the industry dudes that have no problem telling it like it is. There's the marketing tech that sells bikes and then there's the tech that makes a good bike. Thoroughly enjoyed that.
Well said!
I'm an aerospace inspection engineer that makes Carbon aircraft. Thanks for video, it's exciting to see this level of discussion going on!
Great video mate, loved seeing Obree on the wall. He's the president of my club here in Scotland!
I could listen to Raoul all day, there are so many UA-cam vlogs on carbon products but Raoul seems to be the man who knows.
why don't they make steerer tubes thicker (stronger) ?? Instead of using extra expander plugs, which sometimes weights +40g anyway.
Imagine trying to sell this guy a bike
Best reply yet! but...They question should be how to buy one of the bikes this guy builds for himself!
I'd love to have him with me when I'm looking to buy a new carbon bike (second hand off of kijiji (Canadian craigslist))
I wore custom shoes he made for about a year. Brilliant. But like his bikes, very limited run (or once offs)
So he makes shoes like Adam Hansen? Would love to see an example of his work in this area.
drewginn.files.wordpress.com/2010/01/photo-702956.jpg
Prototypes. This was a few years ago now.
One of your best videos ever! Amazing info! You could of made 5 videos out of that hour interview.
I think you should do multiple videos about carbon rims etc. with this guy. One video would be a waste for your channel. You could do a weekly video on different products etc. and keep the viewer wanting more. The turn around to get a bike fixed by Raoul may be up to a month after this video.
Also like Shane Miller's video's!
I knew it'd be a gem of a video once we tee'd up Maven to meet Raoul. Based on the result, The Maven nailed it!
Four minutes in and already learning SO much from this guy! 👍
Ok, carbon can more prone to manufacturing defects, damaged during installation of components, damage during handling and in a crash. Yes, I would choose carbon??? I can understand if you race and every gram could count in a race finishing position, but I am a middle age guy who is more concerned with stability and ride quality. I am looking at buying a gravel grinder and will probably keep the bike for at least a decade. I also do not want to worry about gravel damaging the frame while riding. Steel or titanium seems like a more logical choice.
Johnny Woo You are absolutely right!
I bought 2 titanium frames back in 2003.One is my winter bike with son and b& m lights,the other one was my lightweight
project and with around 8 kg it is about 2kg lighter than the winter bike(60cm frames!).
I did never regret that buy-both look brandnew and they also ride like brandnew.Outstanding performance.
You can hit the tubes with a hammer and you will barely see scratches.Best bikes i’ve ever ridden-the flexing is perfect for the bad roads
i’m riding,bad weather doesn’t affect me anymore.
And at age 17 years there’s still value to the frames.And maybe after my death someone will decide to turn them into a ✈️ plane.
You can also buy them second hand🤙
humanISvegan definitely! I’m on titanium roadbikes since 2004-i got two identical frames with different setup.
One like a randonneur and the other one as a lightweight.They are still like brandnew,although both are ridden hard.
Summer bike and winter bike.Awsome belgian handcrafted masterpieces!
But these days you can also build very light steel frames,very stiff with oversized tubes.I also have a steel bike just to have this special feeling on the road! 🤙
Nothing wrong with aluminum, it's still strong enough.
Aluminum does have fatigue life lower than steel, and is more prone to ride harshly, although my 90s Redline Conquest aluminum Cyclocross frame rides really smoothly. My 2018 Raleigh RSX aluminum rides hard and stiff, though it's fast. My favorite ride of all is my '95 Merlin Extralight titanium- very very nice.. Many experienced for decades riders such as I will prefer Ti and steel.
I'll stick with my titanium frame
Maven, you only got the tip of the ice berg with Raoul. The conversations I have enjoyed with him over the years are some of the most vast, comprehensive and they can get deep. Raoul is awesome is he's a gem in the industry and he also rowed and has do some many of his own physical testing in rowing and cycling, endurance and extreme ways to build capacity mentally and physically. Just important not to give him coffee because he gets fasts and crazier. Great interview and Raoul is truely awesome.
I pointed out the photos of you on the TT bike on the way out mate. Fitting you within the UCI regulations had to be one of the greatest engineering challenges of the last decade for sure! ;)
Like a crushed pretzel. Heaps of fun though. Loving what you and Maven are doing.
Yeah mate I gathered he's a very interesting bloke.
Wow... about the best cycling video I've watched in the last year or two, hands down, bar none.
😂😂😂😂😂I was dying when I read "hands down" in your comment.
Especially watching this guy talk.
This beats the socks of anything I've seen on the Discovery channel in the last few year!
One of the most important cycling videos ive ever seen, thank you, thank you
geeky!!! i love it ! thanks.
i bought an 11 years old canyon ultimate frame on ebay. 12k km later, everything is ok. i cannot see myself going back to alloy , even if in my beautiful country there is no such thing as carbon repair...
Absolutely fascinating! More videos of the sheer wealth of knowledge that Raoul obviously possesses are NEEDED on UA-cam!
I'm about four weeks from having my BS in aerospace engineering, and I could listen to this guy talk all day.
I actually had the sound off I just interpreted the hand movement
lol
Wicked video Maven, that dude was awesome. Can't wait for the next vlog with him.
I've visited him a few times, he's a genius!
Clone that guy! Great video. I have a carbon eyelet to build up with epoxy and I knew that it was best to do it before the humidity of summer started. Too late now; will wait for winter. I used to ride "C7 High Modulus" Fuji SSTs. I had some gnarly crashes in both a 2009 and 2010 model, but never suffered a crack. Of note is that the drops on those Fujis are precision cut aluminum, thus requiring an AL-Carbon mechanical interface. I sold my Fujis and replaced them with BMC 2010 and 2011 Race/Team Machines. When he said, "if you are bombing down a hill at 80kmh, you are not thinking about your cool paint job," I was smiling in full understanding. I bombed down Morongo Canyon at just that speed with a 30 pound backpack loaded with water and food. I did it in the BMC that he cut in half and used to decorate the wall. As he said, inspect your machine as best possible and grow to trust if you buy it second hand. None of my newest BMCs have been on the big hills in town yet. The one that I used on Morongo, I gave to my young nephew.
Raoul is an engineer but more important speaks clear enough to understand his knowledge of subject. Please keep his passion and thoughts coming
This is the problem when you have one guy who is a self professed guru in a vacuum. He's half right about a lot of things- but he is quick to fill in techno babble with the rest.
This is the most informative and thought provoking thing I have seen on You-Tube for a long time . This guy really knows his stuff.
I don't have a single carbon thing on my bike and I watched all of it, and the other vid on wheels. Videos with this guy could be the most information-filled, BS-free videos on carbon and bikes on UA-cam. Thanks for making it and thanks to Raoul for his time, I bet he is a busy man.
So glad I stumbled across this video. Tired of marketing bs pushing crap we don't need...
Just subscribed, great vid
A cracking video and thanks. Good to see the Lama making a cameo. Incredibly insightful.
Love that lugged steel, combined with 32x3X wheels......................... And Campy.
Really great discussion on this one, Mark. Fascinating to get Raul's perspective - I'm a physics major with an engineering background and an experienced cyclist, so I thought this would be old news, but I learned a ton of new things about some of the practicalities and challenges facing the bike industry in carbon layup. So refreshing to hear the insiders angle, absent of a bike company's marketing department. Thanks for this!! As always, keep up the great work brother.
Excellent questions the channel owner asked!
INCREDIBLE!!!! Tremendous insights from another perspective, one that's not trying to sell you something... Please keep it coming...!!!!
Maven you have just taken it to the next level. Great stuff.
Pure joy listening to someone who knows their business in such depth.
That's gold Maven, gold. So much good info.
I know this is an old video but so informational! I learned a lot and very entertaining. Gives me a lot to think about before purchasing a used CF bike. Thanks for posting Mark.
Best vlog to date from a insider point of view. No BS and just the facts. Could have kept watching for hours. Of course I'm now scared shitless of my repair on my carbon P2 that I race in a 70.3 tomorrow :-)
Also for other repairs guys, they do not know what they do not know. Which is was the scary part for me. They are not trying to do a bad job more the opposite and the end results looks good.
Really top notch stuff.
Mark, I'm addicted to your channel and watch all your videos, but this is a contender for "best ever". Well done, again😊
felt like an lecture in my university that was awesome. Im glad you and the carbon guru shared this valuable information. :)
100% of your followers have paused this video to check for carbon wrinkles.
Sorry but you're wrong.
+Fredrik HL but I phoned every 6000+ viewers who watch it and they personally told me "Hi Marty. Yes, I paused the video at the point where he spoke about carbon wrinkling and checked my carbon bike instantly. Thanks for the call Marty. By the way, how did you get my number? Bye." It took a while Fredrik HL. I hope you believe me. I know Fergal Manergal does.
Not unless you have unidirectional.
Guilty. Didn't get a good look so I'm not sure what to compare it to. My Jamis is unilateral.
no wrinkles im my 27yo steel frame lol
Hold his hands down and see if he can still talk..................
my girlfriend masturbates with hers...
better yet test him to see if he's made of carbon fibre as its clear he's trying to take off
He must be part Italian :-)
I think he's epileptic.... Or a musical conductor in his past life.....
He'd be speechless without his hands.
Very interesting topic, thank you for sharing this with us all! Also, as a Canadian, I got unreasonably stoked upon spotting that Norco Sight frame hanging up in the background, didn't really think Norcos were sold much in other countries.
I love this guy! His expertise is a pleasure to listen to. I could listen to this guy all day!!
Awesome Video, not that I have a carbon fibre bike yet, but plenty of knowledge bombs in this video. My only bike is a 1975 Alan, quite flexy slightly too big for me, but it is what I ride on for now and I have fun :D
Would be so great to hear more from this guy, Raoul, so much knowledge without marketing BS. thank you Maven.
That was an incredibly informative video!! I could watch you three talking over coffee for a couple of hours straight! "The carbon TEDcycling Talk". Thanks for taking us with you, really looking forward to the next part!
Really interesting discussion about the carbon wrinkles...bike industry seemingly getting away with a second rate product? or do the demands of cycling not create enough stress on the frame for the wrinkles to be a major issue?
I thought the same
J S company's don't give a fuck, as long as it meets industry standard, Hell who cares anyway we're the dumb ass people paying 5_10,000 Dollars on a bike. I would pump them out too.
Solid video with great technical content and feels like a real "after-hours" shop talk. Really enjoyed this one and thanks for posting!
This video is more valuable to cyclists at all levels than all the "best
new bikes" reviews put together, IMO. Well done. As pretty as some of
these machines are, I feel it's important to remember that we trust
them with our lives. It seems you have found a reputable and
knowledgeable source of information who has been good enough to share
some of that knowledge with the rest of us. Thank you, Mark, and thank
you, Raoul!
Best video so far. Just needed Hannah throwing around cans of soup at the end.
Awesome episode. This has been the most enlightening video on carbon bikes on youtube by far!
Yeah, yeah, yeah, yeah, Yeah, yeah, yeah, yeah,
lol
Ye
Made it unwatchable for me
then u were not interested in watching it.
fool
This guy loves his job and loves sharing it with others. Fantastic video Mark.
great content Maven, as an engineer and a cyclist I back up his statement all the way , I also do my own carbon repairs at home but it is great to have people who know what they talk about ..
there is so much false roumers about CF in the cycling world that needs to be eradicated....
You are the man! Question : What companies? You answer immediatly no hesitation to call those big companies out!
I never comment on your videos (though I watch every one) but felt the need to this time because this is awesome. Super informative and one of your best vids. Thanks, Mark!
I used to work at a bike shop so I've seen plenty of people who have damaged there bikes and expensive parts by over tightening. Thanks.
QUESTIONS for your next session with RAOUL:
1. Can Raoul discuss galvanic corrosion between carbon and aluminium in carbon bikes, especially between alloy nipples and carbon rims, or carbon frame and alu seat posts (e.g. nipple corrosion in Enve wheels). Apparently in the Dreamliner aluminium is not allowed to touch carbon anywhere.
2. Raoul’s views on use of nipple washers in carbon wheels, does carbon need them? Do they make a difference?
3. Can carbon handlebars fail from general age and fatigue? I use them for both road and MTB. Should they be replaced after a while even if never in a crash? Is it possible for Luescher Teknik to run a set of bars through ultrasound as a service for their customers cost effectively?
And thanks for your hard work on the vlogs Maven.
The into is the best yet. That guy is a champ. Good on you.
Well done with the educational vlog! My knowledge was very limited regarding carbon fiber as it pertains to bicycles and Raul put on a great class for all of us. Doing these types of vlogs is very much appreciated. I would definitely love to see more.
So great to watch someone who really knows what he is talking about. Thanks for the video!
Brilliant, as an engineer and cyclist found this fascinating.
Great video! This guy seems really enjoying to share his knowledge. Was joy watching it.
Unreal vlog! This guy is amazing but has me worrying about my bike :/ please try get a longer interview with him you could listen to him for days!! Thanks Maven keep up the great work!
quality vlog mate! as always
Incredible. This guy clearly knows his stuff and is passionate about it. I'd ship my frame from the UK if it needed repairing! Great vid chaps.
This was absolutely wonderful! I wish more people would do videos like this! Keep them comin' mate, you're well on your way to becoming a force to be reckoned with in the UA-cam cycling world!
that's probably the best video I've seen on the subject on carbon bikes and their construction, like you could have listened to more. Bit shocked by all the high end brands that have issues but always been told that all frames are made in the same factory's. Be interested to see the outcome of your bike as I own a bianchi myself, keep up the good work.
Great report. This guy really, really knows his stuff. Made me question a lot my own assumptions about carbon and carbon bikes. Great stuff.
This is a great vlog Mark, getting some real information to the people that isn't the information we get from bike shop. looking forward to the vlog about carbon wheels and the chines copies. More videos like this would be great, I'm looking forward to seeing how the bike turns out.
Great vid Maven thoroughly enjoyed it! Raoul was such an interesting bloke, could listen to him for hours! i am with one of the other commenters: i rarely listen to a 30 min blog video from start to finish but this was great! Thank for your videos and time you put into them, the quality and content is fantastic. Have a great weekend mate! Brad from Brissie 😆 😆
could listen to this guy speak all day long... bits where he compared the aerospace carbon to the carbon in bikes was fascinating.
Fantastic vid. Best one yet Mark.
Interested to see the episodes about the different types of carbon manufacturing and comparing Chinese and Taiwanese carbon. Great idea for content. Keep up the good work. Love the channel.
Fwiw, not only your most informative vlog I've seen but the most informative bike video I've seen. Kudos man - keep 'em coming! Another area that would likely be helpful for viewers, once your done with carbon wheels, is the subject of carbon seatposts, stems and handlebars. Loads of discussion on whether to use carbon stems so I'd be game to hear more on these components as well.
Amazing video. Learnt so much. Looking forward on the next episode.
Love it! This video is the most helpful and comprehensive regarding the science of mtb frames and carbon frames. Wow. Love it! Congrats!
I could listen to this guy all day. Even though I have a fair amount of experience with CFRP I've learned something in every one of his videos
Glad you enjoyed the information and learned something.
Although a little rough around the edges, this video on carbon fiber is one of the most informative interviews on the subject, bar none. Think seriously about making this into a formal presentation on the subject. You guys should be discussing science applications for composite technologies. This format is very exciting and not at all stuffy or "corrosive." For once science applications are interesting in this format.
Could you make this into 10 episodes?
Thanks again,
Charlie Walker
San Diego, CA
I have an old Trek 1220 which I like. But I'd love a used or new carbon road bike. But I lack funds and bike knowledge, which is why I came here. There sure seems be a lot to know and learn.
This guy is 100 percent correct I work at spirit aero. We build the 737 fuselage. Along with the 787 cockpit section. Aluminum planeshave a 30 year life only because of the coatings on the aluminum. If not that time is cut in half. 787 is all carbon and some areas are near a foot thick but so strong.
A very informative video, this man has an impressive amount of experience. I wonder where in germany we have such an experienced workshop for carbon bikes.
Thanks Mark for this extremely educational video. Learnt more about carbon here than any other big budget documentary. Love it, keep more of these videos coming.
Absolute banger of a video. Very very educational.
Excellent presentation. It is refreshing to see and hear guys like him. Obviously he has good experience, knowledge and enthusiasm. Good business on today's growing sport.
thats one of the most interesting bike videos i have seen on youtube, cant wait to see the next one when you go back to pick up the bike
So if a bird shits on your CF frame, it needs to be immobilised and re-scanned before re-mounting.
wow, my mind is blown! thanks for facilitating this conversation with Raul.
Another terrific vlog, Maven! Very informative and entertaining!
i liked this video very much,i wish we had a expert guy to repair carbon like this in my country.
Mate... bar the Tour VLOG's this was one of the best I've watched. Smart, classy guy.
They don't make fighter/passenger aircraft undercarriage struts out of CF, they make them out of titanium, which is where Litespeed, Lynskey and Moots got their start. They're both good, but my titanium bike will be around decades after all these unrecyclable CF bikes and wheels are in the tip.
Thanks for the comments. The landing gear is often made of steel, the Aermet alloy was created for F18 landing gear. Carbon is good for some things but not all things, the same as metals, that's why there are no good Ti forks available. Also note that they typically do not weld structural metal parts on an aircraft. There are plenty of metal bikes that have cracked at the HAZ around the welds. The recycling is problem with lots of research going into it right now.
Does heat treating after the welding on metal bikes (i know steel is sometimes brazed so isnt affected in the way welded steel is) reduce the cracking problem around the heat affected zone, or is the area around a weld always going to be a bit weaker?
Probably the most informative video I have seen on carbon and carbon bikes thanks bro.
I finally know who plays C3PO...
CM, thanks for sharing the knowledge. Raul is a genius. You're lucky to have this much knowledge around the corner. Cheers mate.
best video ever by Maven.Very informative for any levels of cyclist
Thx Mark for the right questions and shared knowledge!
I made 64 and 128 channel pre-configured ultrasound scanners for testing rocket skins… it works really well but, in the end the best jigs were the C-scan robots with laminar squirter tips, as they are overlapped continuous and flaws like bubbles can be resolved to nearly micron scales. However, to really see important flaws such as molecular voids, scanned X-ray is the way to go.