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I Cut High End Pinarello Forks in Half… Here Is What I Found!

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Hey there! I just want to make it clear that I'm not going to make a habit out of cutting carbon bike components in half. But today was a special occasion because Rob from Carbon Bike Repair donated these Pinarello forks to my RU-vid carbon fiber educational cause.
I was so excited to get my hands on these top-of-the-line forks from one of the leading cycling brands and see what's inside. It's like being a kid on Christmas morning, except instead of unwrapping presents, I'm unwrapping bike components and slicing them in half. (bit weird))
I'm always looking for suggestions on what to cut open next, so let me know in the comments what you want to see me tackle next. Maybe I'll even take on the challenge of cutting through a titanium bike frame with a butter knife in the next video!
Follow me here
🎥 / jourdaincoleman

Опубликовано:

29 авг 2024

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Комментарии : 85

@ariffau Год назад

Congratulations Jourdain! You’re now the Rose Anvil of carbon bikes 😂

@veloconfort Год назад

Finally seeing the inside bike components! Amazing information. Thanks for sharing such great content

@JourdainColeman Год назад

Glad you liked it!

@glennoc8585 Год назад

It's also the different types of carbon in the lay-up. Some use several different weaves to get weight down whilst maximising strength.

@aaron___6014 Год назад

You think there is a difference that is significant?

@aaron___6014 Год назад

From what I've seen the majority is UD and the exposed layer is a weave. Maybe you mean different types of fiber.

@glennoc8585 Год назад

@@aaron___6014 older bikes had the weave like 3k mostly on the outside but some so many use UD on the outside now. The UD wheels are lighter than the 3k matt versions

@janvanrookhuijzen8309 Год назад

Does this squeeze test make any sense, since in that direction the fork will be stiff as a brick as soon as you put the wheel in?!

@cjohnson3836 Год назад

Yes. Just because they squeeze in the direction our hands work doesn't mean it won't also flex outward. Hammering into a turn the forks are going to flex in the same direction

@janvanrookhuijzen8309 Год назад

@@cjohnson3836 given the crown of the fork is extremely rigid, with the wheel attached its basically a triangle. Also on a bike youre leaning in a corner so the forces come relatively straight in the fork. It would try pull in the direction of the frame to test the stiffness for hard braking. Here an flatter aero tube can be more stiff. Also you want some damping characteristics so the fork doesnt vibrate while braking hard.

@hectorkidds9840 Год назад

Not really, the fork is a cantilever with force acting forward/backwards. And as you say, the front hub is part of the structure left/right. Normally, the front wheel is trying to move away from the bottom bracket due to head angle and fork rake, but as soon as you use the front brake the hub is getting forced back towards the bottom bracket, forks work hard.

@janvanrookhuijzen8309 Год назад

@@hectorkidds9840 that's exactly what i mean. The direction you describe is very relevant. The direction of this squeeze test is not.

@cjohnson3836 Год назад

@@janvanrookhuijzen8309 Forks are more than crowns. Fork flex + spoke flex +rim flex are why you have tire clearances. To say a fork, esp an under built one, doesn't exhibit lateral flexion is idiotic and ignores most of bike history. More, your braking scenario completely ignores disc brakes and torsional forces.

@afonic Год назад

Amazing! Thank you so much for these videos! 🎉🎉

@JourdainColeman Год назад

Thanks for watching!

@Velo757 Год назад

I'm loving this series of videos!!! Also cool to see one of my comments on screen at the beginning!!! Super cool content so keep it up! Thanks brother!

@JourdainColeman Год назад

Glad you enjoy the series. I have a few more in the pipeline and some ideas exchanged with Rob for future series as well. 👌🏼

@Velo757 Год назад

@@JourdainColeman that sounds good and I'm definitely looking forward to seeing what you guys do together!!!

@JohnA27 Год назад

Love the content, its not destruction, it's 'reverse' or as they call over the pond 'back engineering.' Why do you think all that new tech came out after Roswell. (come on Johnny, we're not getting back down that ol Dulce Airbase fox hole so soon) lol. Keep up the great work dude.

@user-yf4yt1lg9o Год назад

Если не лень загугли как лисы роют норы.они их не роют.они заселяются в барсучьи норы и срут там.барсук животное чистоплотное и уходит из норы.

@GCPerformance18 Год назад

Damn Phil swift over here just cutting everything in half🤣 good videos!!!

@JourdainColeman Год назад

😂

@galenkehler Год назад

Comparing a rim brake fork to a disc brake fork like this is a bit disingenuous. Of course the trifox fork is going to be thinner where the brake isn't! It doesn't have the braking forces, compression from the bolt or any of the same loading.

@JourdainColeman Год назад

Yeah, as I said in the video It's not like for like. Ill be getting my hands on some disc brake forks soon hopefully. (If I can find some)

@hash-CCFF00 Год назад

@@JourdainColeman did u find anything

@tomrachellesfirstdance7843 Год назад

I would have thought the thickness of the trifox is because it's a disk brake bike and they need the additional thickness for twisting forces when you brake. The rim brake pinarello would not need as much on the legs but maybe as the front rim brake may need additional carbon at the front of the crown?

@JourdainColeman Год назад

That's a good point. I need to get my hands on a pair of high end disc brake forks and compare to them. 👍🏽

@tomrachellesfirstdance7843 Год назад

@Jourdain Coleman with how much bike prices are going up....Good luck 😂 unless you are going into the bank-robbing business 😉

@cjohnson3836 Год назад

@@JourdainColeman There's more than 1 way to create stiffness, or in this case resistance to torsion. Thick walls is one, but the other is geometry (and probably why that Trifox disc fork was thicker in diameter and had that peaked outer surface). Even if you can't get forks to cut up, all you really need is someone with a high end fork you can take some measurements on. And assess the shape.

@tweed0929 Год назад

9:44 the thickness unevenness, though...

@glennoc8585 Год назад

Lack of uniformity on the steerer and it looks very thin in a section

@cup_and_cone Год назад

I'd say that taper is by design. It's only thicker up top because that's where the upper bearing race seats and stem clamps, so it has to handle compression and point loading. Inbetween the upper and lower headset bearings it can be thinner to save weight.

@larryt.atcycleitalia5786 Год назад

I wonder why so much is made about how hard it might be to squeeze the fork blades together when at the very least there's a hub/axle clamped into the ends with a Q/R when the thing is in use? If that's properly installed that flex when you squeeze the blades together wouldn't seem to matter? With a thru-axle the entire assembly would be even stiffer.

@nicokop7078 Год назад

Interesting video, thank you so much so these videos!

@JourdainColeman Год назад

Glad you enjoyed the video

@ianturpin9180 Год назад

With aluminium and carbon fibre in wet conditions you get a galvanic reaction.

@gregschramm8180 Год назад

Nice but it still was painful to see but fun and insightful

@JourdainColeman Год назад

Glad you enjoyed

@andre-louw Год назад

No one ever takes about the differences in the carbon fabric between the products in question, neither the difference in the resins used. much is left to assumption and speculation.

@felixmann7003 Год назад

Wasn´t the yellow fork a cannondale fork, not a canyon one ?

@JourdainColeman Год назад

You are correct! my mistake 👍🏽

@7HH Год назад

I just hope your wearing mask to cut carbon. Great video thanks

@cjohnson3836 Год назад

We need to start banning people who make this comment. As if the last million times wasn't enough.

@7HH Год назад

@@cjohnson3836 yeah i hate when people dont understand...

@JourdainColeman Год назад

I have a premium mask with filter system 👍🏽

@7HH Год назад

@@JourdainColeman cool bro. Ride on!

@simonsepic Год назад

Ah man can you like sell me a carbon frameset lmao you must be able to get one mega cheap for a fellow uk rider haha

@qingshengpeng6524 Год назад

8:07 there's a huge thin piece that I would call a sub-quality product. The carbon line even broke there

@JourdainColeman Год назад

On the left hand side, i think I see what you mean 🤔

@hjvveight4074 Год назад

I cut £15000 ebike in half ,know what i found ITS NOW IN TWO PIECES NOW ITS F@@@@@

@MA_808 Год назад

Pinarello racing bikes have had a poor reputation for a very long time. It was not unusual that another brand custom bike was painted PInarello and used as team Pro racing bikes. There are likely a few people out there who think they bought a team PInarello bike but it may have been made and painted in a custom shop in Southern California then sent to team riders everywhere

@larryt.atcycleitalia5786 Год назад

But of course you can't name any names or provide any examples to back up this claim so it's worth.....who in SoCal is making them?

@MA_808 Год назад

@@larryt.atcycleitalia5786 this was a long time ago back in the 1980s and 90s and it to do with lack of access to advanced and very expensive tubing in those days in Italy because of the exchange rates of those eras...I should have explained it and also my comment was from the past. .. I was in the racing, management, and tech side of the business for a long time...and my comment is meaningless now...I apologize for offending you...and I do remember Italy very well in those days and some places were very depressed...

@larryt.atcycleitalia5786 Год назад

@@MA_808 Since it's long ago why can't you name names now? Columbus made some damn good tubing in the 1990's IMHO. I dunno anything about Pinarello but if you're gonna slime them you should offer up something more than an unbacked-up opinion, no?

@MA_808 Год назад

@@larryt.atcycleitalia5786You love gossip, dont you?

@mracer8 Год назад

@@MA_808 NO, we like the truth backup with fact! not gossip which you just post as fact!

@CrapKerouac Год назад

Have we learned anything about the recycling of carbon?

@tweed0929 Год назад

Nothing. At this point in time it is practically impossible. Carbon parts go to the landfill.

@Mike-oz4cv Год назад

An average first world citizen sends more than 100kg of waste to the landfill every year. This number does not include cars or construction waste.

@JourdainColeman Год назад

It makes me sad, the best reuse is to fi them instead of chucking them away. I do my bit, no car and minimal living but these carbon frames are my downfall.

@yspegel Год назад

It's all great stuff but to hear MrCarbon expert saying everytime: This is what you pay for is a load of bullcrap. Aerodynamic bike frames in general are very underdeveloped while asking the big price like it's F1-team designed. This is the bare minimal you expect from a bike manufacturer for the asking price: that the material they used to build with is used correctly. The fact that we need video's like this underlines what poor conditions the bike market is in: most people don't trust their bike is made well just for safety, let alone performance.

@GR-kt4le Год назад

C|ickbait title

@PavelBarbanegra Год назад

So you compare the stiffness of the rim brake -specific fork to the stiffness of a disc-specific fork, they differ (as they should, because the loading profile is different), so you call one worse than the other. Wow. Talk about comparing apples to oranges...

@brucewayne964 Год назад

The quality of the carbon is very important....carbon is'nt carbon.

@geik2 Год назад

How in the world are we supposed to trust you. You don't even use the required protective equipment when you handle carbon. "experts" in a backyard workshop who know everything about most things. Sorry, but its not that easy.

@isevo Год назад

Nice toxic carbon dust is spread into the air while cutting through it

@pbn111 Год назад

Thanks for your interesting videos cutting up frames & stuff. Just one comment, I haven't seen you or your workshop guy wearing a mask when cutting up the frames. it's your life, but cutting carbon without a mask is a very very bad idea. It'll get into you lungs and is highly cancerous.

@cjohnson3836 Год назад

He literally said it in another video Dad. You people are annoying.

@JourdainColeman Год назад

I have a premium mask with filter system 👍🏽

@charlesmansplaining Год назад

Don't speak to highly of the quality of engineering you might give qullible people a misleading take of carbon bike manufacturing. Carbon is still a crap material to build bike parts out of for the general consumer. It's fine for a specific purpose like racing and a short life expectancy but glue is still the main ingredient that holds it together and glues get brittle over time.

@GeirEivindMork Год назад

My oldest carbon bike is 16 years old this year, it has countless miles and even been in a burning shed next to the source of the fire. Heck, I have even crashed it. Still, in use twice a week. I used to be afraid to go head first over a broken frame when I bought the oldest bike back in the day, but now I can't think of buying another frame material. I mean, I just had a full service on that original carbon bike and it's as tight and stiff as it was originally. I gather you're into titanium, steel and that stuff. But I notice with my steel mountainbike that it doesn't help it last long when it's outdated in every other respect.

@charlesmansplaining Год назад

@@GeirEivindMork I believe you because this is the internet. 🤣🤣

@GeirEivindMork Год назад

@@charlesmansplaining You'll come around to carbon as well. Just hope you don't waste too much in exotic metals. ;)

@charlesmansplaining Год назад

@@GeirEivindMork I've had 4 carbon road bikes and I still have one carbon Ridley cyclocross bike. I believe the reason the Ridley is still alive is because it doesn't do much these days. Mostly sits on the indoor trainer. If you think I'll come around you are mistaken, my last bike purchase is the custom made titanium frame from a US builder.

@GeirEivindMork Год назад

@@charlesmansplaining Then I would need to ask given your experience that you are not happy with carbon? People who own titanium frames are rather invested into something which lasts I've experienced, so is it the fear of carbon breaking or have you had short lifespans of previous frames? I ventured into steel for fun, and realized right away that it wasn't for me. It was already too old when I bought it. didn't support hydraulics and I don't want mechanical brakes so I had to wire it ugly. And now it don't support boost, through axel, 1x12 etc. I don't weld so I can't mend it myself and paying someone to do it would make it more expensive than buying a new frame. It works as a 00-era bike, but not as a 20-era bike. So I'm fine with replacing bikes each decade.