Cervelo Design Fail!

[@Hambini]

HELLO HAMBINI FANS. Where do these bike designers get their education from. Ridiculous

[@maddoc68]

You already rated Cervélo and you were 100% right. 😂

[@borano2031]

Just another bag of wank. Over time, selfdestructing frames from Cervelo! PON Cycling are DELIGHTED!! Rgr

[@tobegan3753]

I have got a background in Motorsport; engineering flaws like this would never be tolerated...they would simply go out of business. Sorry Cervelo I was a fan but I’m staying away for now. 😟

[@danielcafferata1318]

Hambini's in the house!

[@Pub01]

That hitting part was probably designed as rubber covered or something, but the finance department optimised the cost and we got bare metal thingy :)

[@Combat556]

Frame designer to his supervisor, “But boss, it looks so cool.”

[@janwillemkuilenburg7561]

The best way to destroy carbon is lateral impact and here it is built in. Absolute disaster. This is integrated self destruction.

[@johnsmith1474]

No mention of if there is any added "landing surface" in there, like a piece of aluminum bonded in etc. But you'd think so ....

[@therealjamesjordan]

@@johnsmith1474 Because 'impacting carbon' as was said in the video does not come across clear enough? Put some Monster Energy and Santa Cruz stickies on it, heal it right up.

[@johnsmith1474]

@@therealjamesjordan - It was presumptive not evidenced, we got no look down the tube. As I said it was not mentioned, even as an improvement. Who the fuck advertises for shitty sports drinks but stooges?

[@therealjamesjordan]

@@johnsmith1474 Uh - you had two words to read & to comprehend. ...daytraders.

[@Lestalad1961]

@John Smith. Ok, it’s clear that you own( work for)a Cervélo and understandably you’re in some kind of denial. Watch Raoul’s vid again and see the yellow mark he made on the OUTSIDE of the frame where the offending pre load cone has impacted internally on the head tube causing carbon delamination. In another of your comments you said “ Hasn’t said anywhere that it’s unsafe” Do you actually believe this design to be safe as it is?

[@Rshorttt]

I'm grateful for Luescher Teknik and Hambini. Thank you!

[@mmooppaarr6699]

Between you and Hambini...Cervelo has really fallen off in quality.

[@PresingPhoenixSquadron]

When i saw a tittle i just thought about Hambini videos about Cervelo.

[@gearathon]

Thanks for pointing this out!

[@manuelcalleja92]

Dosent Hambini ride an older S5?

[@RabidMortal1]

Hambini rants about anecdotes related to QC. This video is far far more damming than anything Hambini ever put together. This video impugnes not only this model, but the company as a whole. After watching this, I would not touch a Cervelo if you paid me

[@7tom1ja]

@@manuelcalleja92 yes

[@MortenJonassen]

This is disgraceful. Once again, thank you for exposing the complete incompetence within the bike manufacturing industry.

[@adonisbagaporo9298]

It is actually more comfortable watching this video 2x faster. Anyway, it is good to see someone pointing out some fails from expensive frames like this.

[@sylvainmichaud2262]

Remember, the UCI approved this frame ! They pretend this approval gimmick is for rider safety. No, its not a source of additional revenues. 🙄 It's good to know that the UCI also check socks length. I feel much safer !

[@RabidMortal1]

The UCI has never been concerned with safety

[@j...bro.]

@@RabidMortal1 why approve wheels then? They don't approve aerodynamics or straightened. So what then is approval? Loose all credibility lose all worth!

[@davidngqkalone88]

To be fair, UCI use a standardised test protocol to test loading on the frame. This test doesn't take into account fork rotation.

[@Lestalad1961]

I’m with Sylvain on this point. I’ve watched Raoul’s vid three times now. I’m still as shocked after the third time.

[@santiagobenites]

How much do manufacturers have to pay the UCI for approval? Does money talk in the UCI approval process?

[@YaniofWigan]

Good to see the uploads back again. You and Hambini should do a podcast!

[@WowRixter]

When I saw the title, I was think this was a Hambini video

[@geoffsemon7411]

Great informative video. It's good that you maintain a professional attitude which Hambini is unfortunately lacking.

[@SignorLuigi]

I don't think Hambini lacks a professional attitude. His engineering analysis and standards for engineering design are quite commendable and professional. What SOME people don't admire is the vocabulary he uses at times as he presents his professional engineering insights. Luckily a lot of his rich vocabulary is not used in my country (USA) so it passes by me with little impact. Having said that, I believe I understand what you meant.

[@willo7979]

Cervelo topgun: so, show me what have you got! Manufacturer: see these! They are our latest design! C: give me the sleekest design! M: look at this! It has the sleekest wind-cutting Head-turning headtube! C: show me the novelty! M: it has a hidden stopper! Inside! C: cool! what is it made of? M: it’s plastic! C: no crappy plastic in my top-end model! Make it metal! M: but... C: make it in metal! And, make it in matching matte black! And, it’s our design! I want my name on the patent! No, not a design, it’s our invention! Marvellous! Great job!

[@Hambini]

"Who would come up with that idea?" Damon Rinard, Mr Vaghinahead or anyone from scratchmyitch

[@DeedoCmuk82]

I thought his name was Damon Wankhard?

[@jamble7k]

does this push cervelo even lower on your scale? i hope so

[@j.kimmer1509]

Didn't Damon Rinard leave Cervelo in 2014 and currently with Cannondale?....

[@Hambini]

@@DeedoCmuk82 You are right, I had a senior moment.

[@justme8386]

@@Hambini so are the White an Vrooman frames the last of a good batch of designed frames from Cervelo ?? A lot of the "design flaws" (i'm being generous there) seem to be after their time.

[@tristano1998]

Hello and thanks a huge lot for this insight! Wouldn´t have never expected such a great engineering failure at cervelo. Mr. Luescher (if i am right), could you think of any "hack" or workaround to this issue, i mean, any "treatment" of this metal part or the part of the headtube to provide a "cure" anyhow that would avoid damaging by too much handlebar travel? Or is this just out of reach, and the basic design failure is so grave that it doesn´t make sense to get your hands on this product at all? - I see this is a tricky question... i ask in another way: Is there a way to help people, who have already bought that frame, to avoid that problem? Another than just fixing cracks... a method of avoiding the damages in the first place? Greetings!

[@swflelite]

This needs an answer to save a lot of us 👍

[@dudeonbike800]

Just add a little canard, or nose wing, to your top tube that sticks out laterally enough to "catch" the handlebar as it swings around JUST before the internals contact each other. Simple solution. You may have to have some sort of knee reconstructive surgery so you can clear this "innovative" frame addition while pedaling. Minor inconvenience; shouldn't bee too much trouble.

[@tristano1998]

What about replacing this hard edged metal part by hard rubber? Would that lessen impact forces?

[@headofmyself5663]

Wow, thanks for that video. Just was thinking about getting an S5, but those design flaws are just insane. Greetings from Germany

[@cccpkingu]

I think the next logical step is to put a sticker on saying "no user-servicable parts in the fork assembly", as it is clearly too complex, and that you void your warranty if you find out about the hidden cracks.

[@earthstick]

I reckon you and Hambini should start your own bicycle company.

[@mattheweaton1420]

I would gladly fork over a few thousand dollars extra to buy a bike that is actually designed and manufactured to high standards.

[@cup_and_cone]

Problem is they would have to move to Asia and be at the factory regularly to ensure quality control. No one wants that life.

[@thedownunderverse]

"Leuschini".... it even sounds Italian! "Hamber' doesn't quite have the same ring to it.

[@tomekborucki1120]

No. Many brands made stuff at home facilities before. And the bikes were cheaper than now. They pay less for the stuff in China but charge more in endeffect. QC means extra people but good QC means less recalls. It's only a question how much the honesty and fairness are worth for them.

[@LuescherTeknik]

The problem is that it is a marketing exercise not an engineering one!

[@dilmurodavalbaev1392]

You are a gem, sir. The world needs more engineer KZbinrs like you

[@Sills71]

A carbon frame that cracks itself! Congratulations Cervelo!

[@Abunnywrote]

interested in your opinion about cervelo s3 2020

[@milovacc1195]

cervelo really went out of the way to design a complex, yet elegant failure.....

[@Pieschacon]

Thank you, I was close to buy it but you just opened my eyes on it, very bad design and the cost behind.

[@jubeeju]

@08:45 : Who signs off on this stuff? The UCI, of course. Absolute Classic. Many Thanks for sharing your work with us mere mortals.

[@davidlilja9180]

Great video Luescher. Somebody in the Netherlands now signs off after Vroomen-White sold Cervelo. :( Vroomen-White signed off on all those BB problems including on one of my 2 RSs so I'm not forgiving them. I've been trusting (?) that my RCA was their best work before they ran off. Most designs use the front brake caliper in one direction on a rim brake design to limit 'full lock'. Is a handlebar wrapped with tape the only way to limit risks from 'full lock' causing high impact stress on a carbon bicycle?

[@patrickgrantlego7133]

Hello Leuscher, I was wondering approx how many layers think a down tube is generally. How bad is accidentally sanding through a layer of UD fiber in a few small places ? Thank you.

[@kidsafe]

The Trek Madone SLR has a similar issue with fork/frame interference. There is a plastic/composite steerer stop under the headset bearing cover, but it breaks easily.

[@HolmsOnBikes]

Mine, my brothers, AND a bunch of media loner Madone SLR's that I've seen in KZbin vids all have that exact little ding on our forks on both sides. The little steerer stop is the cheapest, smallest piece of shit in the world and snaps the first time your handlebars even gently rotate too far. Luckily it isn't to the same extent as this cervelo and mine is just a paint chip. But still, it shouldn't even be a possibility that your fork can contact the frame.

[@thedronescene7474]

cycling T-Holms can you pls give me a link to one of those videos? i was thinking on buying one but now I am afraid lol!

[@kidsafe]

@@thedronescene7474 The Road.cc Madone SLR review shows paint/carbon chips on both sides of the fork crown.

[@kidsafe]

@@HolmsOnBikes A stiff wind blew my Madone over while it was leaned against a chainlink fence. That partially broke the steerer-stop and I didn't realize. A few months later it broke completely while I was just picking up my bike... leaving the paint chipped. Turn it even farther and it will break the corner off the bottom of the HT.

[@Lestalad1961]

@cycling T-Holms If you have that ding on the outside on both sides surely the delamination on the inside is catastrophic? Will you be comfortable riding this bike again?

[@mihajlomitrovic1211]

Usually videos with this kind of title are either clickbait or unargumented hateful crap. This on the other hand is amazjng content. I have tested this bike some 10 days ago and was impressed, but after this I will remove this bike from the wishlist until I know they've solved the issue. Thank you sir, I am subscribing for sure! P. S. As a designer willing to defend my profession, engineers are in charge of this part of the creative process. Put simply, designers are responsible for the outside of the product, engineers for the inside. So don't blame us guys 😁

[@robertphillips3078]

I actually ❤ this frame & bike.... without looking at it myself. I would glue some old inner tube in there 2 counter act this on both surfaces. On on 45 & 90 degree turn l dont think u would hit the inside of the frame. Stand 2 be corrected on this. However from your point of view, good find. Did you write to Cervelo about this 2 Complain ?

[@tychoMX]

Thank you very much for these analysis. Most of us only know things a posteriori, once your nice bike has failed and you're in the pit trying to sort out things with the manufacturer.

[@thetheflyinghawaiian]

Maintaining my position that the s5 was actually just made to use as an excuse to your partner why the s3 is reasonable to buy.

[@Sills71]

that is called "halo marketing" and it is a very real strategy, make something ungodly expensive so it makes the normal overpriced offerings look sensible.

[@tristano1998]

Sills71 - sounds reasonable. If you look around, you will find this phenomena in fact in abundance. So i think it really is a marketing strategy.

[@OlivierHomps]

@Luescher Teknik Does the S3 suffer from the same design flaw?

[@horrovac]

That had me gasping and grasping for words just like you. That "stopper" part is actually a breaker. Can't imagine how the carbon can withstand that (unless they laminated it 10fold there, and it would STILL be a stupid design). Unbelievable.

[@MerlinMan1579]

I served in the Industry for over 13 years and the need for performance over quality, and marketing BS saw me hang up my hat in frustration, as the warranty claims attested. I now own an Australian built custom steel framed bike and the quality is outstanding, not to mention its superb ride....plus I’m off the ‘next model’ entrapment psyche, and I am back to enjoying the sport again. To all those considering a high end carbon bike I would advise you to, at the very least, inspect a well made custom steel frame....I wish I had done that over a decade ago.

[@RevelCris]

How heavy? Why not Titanium

[@JamesLee-qy7bi]

Hummm... My S5 does not do that at all. The traveling stops by the headset bearing. It does not touch the frameset. Did you assemble the fork and headset incorrectly? Or the donated frameset was crashed already?

[@LuescherTeknik]

Maybe they changed it already or you have a different model, we had two of the same come in and both were like this, they were assembled correctly.

[@JamesLee-qy7bi]

That does not make any sense. Mine is 2019. I got them when they first came out. Your video showcased the 2020 model. Don’t think Cervelo made the headset/fork area worse?! Just to clarify, I’m not defending Cervelo. I’m seeking the truth just like everyone else who owns this bike. Also def not a fan of ‘fake new’ on KZbin or social media. It’s easy to manipulate the truth on a little screen, just to get viewing and ratings. Wolf on the sheep skin kinda behavior. Truly hope you are not one of them

[@mesere7]

@@JamesLee-qy7bi How about doing your own video and showing that your frame is different ? Shouldn't be too difficult before you accuse someone of being fake without proof?

[@JamesLee-qy7bi]

ExMachina -Hummm?! I didn’t accuse anyone, did you read all my messages and Luescher’s reply correctly? I’m seeking the truth just like all S5 owners or future buyers. Its not just ‘my frame.’ All the 2019 and onward S5 built the same way. There are videos about the full built on KZbin already... You can pm the mechanic and he will tell you that the cam stopped at the top headset bearing, it doesn’t bang against inside of the frame. On the outside, the fork doesn’t touch the head tube as well. Unless the frame was in a crash. Therefore, I have have some legitimate concerns about this specific Luescher’s video kzbin.info/www/bejne/Y4erZnSsr9iYpbc

[@cup_and_cone]

A simple ahesive-backed piece of aluminum plate stuck inside the headtube at the contact points would have gone a long way in broadening the impact point...but I guess a dollar's worth of band-aid solution is too costly to implement before shipping a $4k frame.

[@swflelite]

I was looking to buy one of these bikes (a professional bike fit led me to them from my odd position) and I was thinking about doing the same fix the second I got it. Do you have any experience doing a fix like that? I think the aluminum would accomplish 2 things, limit the travel slightly more so the fork doesn't hit the frame anymore externally, and save the carbon from delaminating. Thoughts?

[@cup_and_cone]

@@swflelite Something is certainly better than nothing - it is just a matter of the potential Cervelo declines a warranty by trying to blame your modification. In a big crash I doubt any method is going to prevent damage because that's a significant force being leveraged. Any protection would primarily be for carrying the bike around and/or knocking it over. Off the top of my head, the quickest/easiest solution for someone with no tools is a simple adhesive wheel weight. You could probably get a couple weights for free/virtually nothing from a local tire shop. Downside is they're obviously weights, and you'd probably add about 15-20 grams for the pair. Modern wheel weights are made of steel with a zinc coating for rust prevention. A better method would be buying an aluminum flat bar from your local home improvement center, cut it to size with a hacksaw/Dremel, file the edges, and use a 3M VHB double-sided exterior rated mounting tape. The important thing to remember with either of these two methods is that you're sticking a flat piece of metal against an inside radius...you need to ensuring the outer two edges aren't point loading too badly (this is where the VHB style tape comes in to help disperse the load). Of course filing the edges into a taper would help too. The best way would be bending the material into a matching radius. This would be quite easy if you got a flat bar, because you could bend the entire bar before cutting and then cut it after you've radius'd it. Another completely different approach would be add soft bumpers onto the cam/limit stop itself. Something like Scotch rubber bumpers (made for cabinets) would be an option...place it on the limit stop right where it impacts. I suppose you could also do a combination of the rubber bumpers and aluminum plate, too.

[@swflelite]

@@cup_and_cone thanks for that response. I was thinking a similar thing, 3m double sided tape on the back and possibly sheet metal aluminum just to disperse the pressure from small dings. It might save the outside and the inside just enough. I've been staring at geometries on bikes and can't find anything that's reasonable for a short guy like me (5'4" with a lot of torso) to get into an aero position (low stack, low standover, reasonable reach, low seat tube height, etc.) Between the seat tube height and stack alone it rules out half the aero bikes on the market. This bike is one of the few that's ballpark where I need to be.

[@tristano1998]

Dear Mr. Luescher (of i am right), thanks a huge lot for this insights! I was about to buy one of those frames myself, so good to know about that issue! But: What if i loved this frame so much that i would want it anyway? Can YOU think of any solution to this problem, i mean any „hack“, for instance replacing this special hard edged metal part or working on it anyhow or any other way to „cure“ the frame from being damaged by handlebar travel? THAT would be a great thing, because you‘re the expert. A vital solution could be paid for also, no one has to work for free. - Or, maybe there is no cure. Just to avoid this kind of engineering and to look to other brands when getting into aero frames. So what to do? Greetings!

[@TC-ik9kn]

I would most likely, cut the edge of that piece , making sure is no contact, but that could influence the steering integrity (maybe?)... Check the previous S5 , this problem is not there ... Aesthetic wise ..(and my opinion) just make sure you use some kind of wireless gears , etap, as the cable routing on those was something ugly to the eyes . ;) Ride on!

[@benbraceletspurple9108]

thankyou for your honest review! I was close to buying one and this changed my mind!

[@Sills71]

I emailed this video to Cervelo Customer Service... no response. Anyone surprised... Also emailed it to GCN, no response.

[@chrisrodgers4950]

Wtf you sent it to GCN? You try calling HR?

[@felix8642]

Cervelo HQ has gotten news of this video. they say this is rubbish. But ya what i noticed when i first got this bike is the reduced turning radius and the chipping off of the painting at the mentioned location.

[@NejvecjiMajstr]

Same thing on the old Specialized Venge Vias, when the fork edge hit the downtube.

[@galenkehler]

Can S5 return their frames due to this defect in manufacture?

[@pixiedixie3682]

Raoul is keeping cool as a cucumber but inside is like volcano about to blow off! Well done Cervelló ! 😂😂😂

[@DaaaveO1971]

How much more mud is Pon Holdings going to drag the Cervelo name through? What kind of twisted grudge do they have against Phil White and Gerard Vroomen?

[@spai01]

Oh mate! I thought I had done all my research on S5, thanks for this.

[@waynosfotos]

OkiPala Let me tell you, they are mediocre in quality. I have had two. Only ever put electric on these frames as the routing is sh!t and they don’t change properly. Also I had one of the VWD S5s, and it had shiny paint and you could see the waves in it. Why I believe they are all now matte, to hide any finish imperfections. And the big laugh is, they are made in the same chinese factories as all the other brands but charge a absolute premium. For the price you can buy a HANDMADE Sarto bike from Italy which is top notch! Or even a Australian Bastion bike for the same money. Disgusting how they treat their buyers with contempt.

[@bd603]

Is this only a problem on the 2018 version? That’s the third iteration, and latest model, of the S5.

[@Jin_KX]

Thanks for your work Luescher! So appalling to see this level of engineered that overlooked safety aspects of carbon. All these fancy designs with little to no improvements and added maintenance among the different manufacturers is the primary reason why I have lost interest in mainstream brands over the last few years. Gotta admit these bikes looks cool though! Poor engineering, false advertising, outsourced manufacturing to Asia with little quality control where the product doesn't provide the value customers paid for. As you and many others said, best way to build a road bike is straight round tubes. Stick to non-proprietary components - BSA, 27.2mm seatposts, non-integrated bar-stem combo.. rim brakes too! I'm of the opinion relating from so many users' experience that if you wanna go carbon, it is generally good enough to get one of those FM models from reputable Chinese manufacturers like Hongfu/ Dengfu/ Light Carbon etc . Durianrider has one which I reckon is good value! If you really want a traditional bike made from carbon of high quality, it is really worth considering getting a custom builder since the cost of these mainstream brands have skyrocketed that they are almost on par with a custom frame. You get the geometry you want and some also offer BSA bottom brackets. Sarto Asola is one of these bikes that comes to mind I'm now more and more starting to see the appeal in titanium and steel bikes after riding for more than 10 years, having seen these issues with carbon designs and years of false adverts etc etc..

[@BikeLife154]

Just when I thought Cannondale was absolutely CRAP I see Cervelo are even worse in their engineering! We need to boycott all of these companies until they show that they care about people’s lives! They’re not even cheap!

[@danfuerthgillis4483]

That's why we need to support the Chinese manufactures directly instead of going through these scammers. Order direct from their factories, that way they get all the money and can invest and improve their manufacturing. This is why the Chinese bikes are getting better because we are now ordering directly from them. These big name bikes are just that JUST A STUPID NAME these days as they build all their designs to Taiwan or China to OEM's.

[@davidfinn9828]

Is there any desine flaw in the S3 with the quil system for the fork preload and assembly ?

[@markyoung950]

I was told that Merckx frames have a curved top tube, so as to avoid damage from the handlebar hitting it. Could a rubber bumper be used to limit the fork turning

[@angelt564]

Question to anybody that can answer this. So is the Cervalo "chameleon blue" the same type of design? Or was it fixed or redesigned for this model?

[@antoniop1968]

Luescher Teknik and Hambini, our last source of honest and unbiased reviews.

[@lst1nwndrlnd]

4:20 they must be high. That's an enormous amount of leverage coming off that cam.

[@tychoMX]

Extra thumbs of for the 4:20 and "must be high" serendipity.

[@elliotlassiter107]

2012 model had the same issue with limited steering, but at least it only took a chip out of the down tube. Still my favourite bike.

[@robinrai4973]

Mean while on the *rugged* and *extreme* Specialized MTBs - _lovely soft and plush rubber pads on the top tube_

[@gpurkeljc]

Hambini and Luescher Teknik, two of my favorite cycling channels. Thanks for shining the spotlight on these horrible designs. 😎

[@trroland1248]

Is it not the case that most of the currently popular aero-road bikes, with wide fork crowns “flowing” onto head and down-tube junctions will have a similar problem?

[@stevenleffanue]

Designing these concepts is all well and good as it leads to eventual improvements of our bikes but its seems proper testing and development had not taken place. Cervelo may open themselves up for litigation following injuries.

[@LuescherTeknik]

That is the key, proper development and test protocols BEFORE the product goes to the consumer.

[@Lestalad1961]

What kind of Cockwomble let’s this go through? Raoul and Hambini have knocked the last two nails in to Cervelo’s coffin. The various bike forums will be all over this like a rash. I can hear the sound of foot on arse in Canada from here in the UK

[@thedownunderverse]

I like this because "cockwomble"

[@garydevlin5164]

@@thedownunderverse and I liked this cause you liked "cockwomble"

[@truantray]

Cervelo is not Canadian.

[@Lestalad1961]

@okleydokley In 2019 Gran Fondo magazine described the S5 as “The Canadian Rocket”. You are no doubt alluding to the companies ownership and probably also maintain that UK made Rolls-Royce, Mini and Bentley cars as German right?

[@Lestalad1961]

@okleydokley I’m prepared to concede that my once favourite HP Sauce originally made in Birmingham is now Dutch as it’s made in Holland by French multi national Danone

[@albertfisher4265]

I am curious about the hype on the Fezzari Empire frames. Supposed to be molded all one piece and supposedly very clean inside. Rear triangle is not a separate piece and bonded.

[@garylucas7050]

Love the video , so what bike would you recommend for quality ?

[@DavidJones-sc6jc]

Time frames. The best.

[@stuart3566]

Assuming the same applies to the Cervélo PX?

[@soloist777]

Being one of the first to get the original carbon Soloist (CSC livery) in Australia, and a couple of P2s after that, years ago, I've always been one of Cervelo's biggest fans and have even contemplated recently getting an S5 but for an expensive, high end bike manufacturer, this is very poor. Is the result of change of ownership of Cervelo behind this? Interested to know.

[@dudeonbike800]

It's simple. The engineer was incorporating a sacrificial element in the bicycle frame's design. When the bars spin around really fast, the sacrificial element is designed to absorb the impact and fail at the same time. So that's a perfectly fine design approach. Problem is, the sacrificial element is the FRAME!!!

[@rosomak8244]

Actually you forgot to mention another significant sacrificial element here: the rider.

[@mroozendaal]

Great information this. Does anyone know if this design fault is also present in the latest Cervelo P5?

[@LuescherTeknik]

I believe it is, unless they changed it very recently.

[@mroozendaal]

Luescher Teknik thanks for your reply. So it is both on the S5 and P5?

[@andycorso8498]

As Hambini alluded to in a previous vid, the Bicycle industry is full of crap engineers, because if they were any good they’d be in another industry........

[@RabidMortal1]

Yeah but I don't think that's accurate. More like the some companies tell the engineers what to do and what not to do. Same thing that happened in Hambini's profession with Boeing.

[@sevintrix2962]

Nah thats dumb.

[@ggdd1299]

That is correct.. what top aerodynamicist or aerospace engineer would like to work designing severely limited (by the idiots who run the UCI) crappy bikes made in china, when they could be working on the latest aviation technology?.. the salaries are not even close

[@leoheo7323]

@@ggdd1299nothing wrong with Made in China but the brand.

[@ggdd1299]

@@leoheo7323 F&%k china.. 99% of everything they make is shit.

[@RyonBeachner]

I’ve owned one of these for just over a year now, and put about 6,000 miles on mine. I’ve traveled with it, rode it in shit conditions, over cobbles, tossed it into the back of pickups, and along the way have had a few knocks here and there without any issues. When I bought my bike, I built it myself, and immediately thought their fork stopper was a stupid idea, and considered putting a small rubber bump stop in the head tube, and near the fork/frame convergence, however I never bothered. I just built up an S-Works Tarmac and will be sending my S5 out to be ultrasound tested, and will report back if I find anything horrific. However with the cursory inspection I’ve done so far, I don’t have any cause for alarm, and have been pretty damn happy with the bike despite the headset stupidity.

[@Stoffendous]

Thing is if they design something like that I wouldn't take any other windtunnel claim etc seriously anymore either. Or that supposedly aero steerer, it's all just marketing fluff mate.

[@RyonBeachner]

Stoffendous Yes it’s a stupid oversight, but it doesn’t invalidate any benefit from other aspects of the design that are good. Whatever it may be you take the good with the bad, there’s no perfect bike. I’m certainly not about to chuck a $5,000 frameset in the trash because some guy on the other side of the world has a problem that hasn’t been an issue for me, however I’m also not so naive to think it can’t happen to me. 🤷🏻‍♂️

[@LuescherTeknik]

I am not saying to chuck your bike in the trash, just to be aware that this could happen and what to look for.

[@RyonBeachner]

Luescher Teknik Oh I didn’t think that was what you were implying at all. I watch pretty much all your videos and doubt you would be suggesting that. I was just saying that dismissing the people who tend to get carried away in the comments.

[@garl9302]

@@LuescherTeknik I have the same bike and have been riding it with no issues at all. I have inspected my bike thanks to your video but did not find anything out of the norm on the "contact points". The learning of this video for guys who own this bike is that there is a hard steering stop and one should avoid turning the steerer fork to its limits with force. i doubt anyone who own a CF bike would do that. i own other bike with the traditional steerer tube and i don't turn those bike to its limits with force either. During normal riding there is no way we would reach those turning angles on the S5 so i will not be so concern. But i do agree with your other points such as transporting the bike, or accidental dropping of the bike, the steerer may crash onto the headtube and cause some damage.

[@pmcmpc]

​ @Luescher Teknik is the latest model still using the same arrangement?

[@swflelite]

So I'm ordering an S5 this week (or... I was...) Does anyone know if it's possible to put aluminum reinforcement inside the headtube where that metal stopper hits?

[@dudeonbike800]

The only stopper you should use is one that prevents the check from being cashed!!! Plus, you realize ANY modification you make will be the PERFECT excuse Cervelo will use to nullify any warranty claim. Run away. Fast.

[@nonfictionone]

I ride and older model S5 because... I have short legs and I like to sit forward and on that model you can put the seat way forward ie in the 'triathletes' whole on the saddle tube thingy. So good people of the electric internet, what bike can I update to that allows me to put the saddle waaay forward?... (I used to ride custom but can't be fucked with that anymore)

[@SignorLuigi]

GREAT VUDEO! For folks who have this frame and who have been lucky to not damage it yet, what do you think about using some appropriate adhesive to attach some stainless steel plates on each side of the inside of the headtube where that impact occurs to spread out the force of contact, reduced the pressure, and prevent delamination. Seems as though the extra grams would be worth it to save the frame from major damage. P.S. HELLOOOOOO HAMBINI FANS!!!

[@LuescherTeknik]

Yes that may help with reducing the point impact load, good suggestion.

[@ti2285]

Can you cut up and review Cervelo bike ?

[@benbraceletspurple9108]

Do you think making it with enough travel the handlebars hit the top tube might be better? or is it better to just have a full swing?

[@sbccbc7471]

The former seems like it wouldn't work potentially due to the fairing ahead of the head tube. Specialized's 3rd-gen Venge and Tarmac SL7 have no bump stops of any sort, they're allowed to fully rotate until the handlebars touch the top tube.

[@lfoster7601]

Is that pissy little rod the actual steerer tube? two bearing faces 1.5" diameter and a 10mm steerer???

[@StanislavTPetkov]

Hi, I have a question. Does t700 good carbon, stiff and durable. And can you tell us something for tt bike. May cut and review or just data which is faster, or good quality. Thank you.

[@popitn2nd]

Do you have any review flaw on the venge s-works? Or the old venge vias?

[@rodrigotruzzi8983]

This travel limitator also has any functionality like steering stabilizer when the position it's straight? Anyone knows?

[@cityslickerbass]

How would you correct the design?

[@tongleongsim9202]

It is fortunate for us to have good Engineers like Raoul and Hambini to review on the design and engineering aspect of bikes. So we gained knowledge and be awared of what we are getting into. Thank you "Truth Engineers".

[@benbaines6789]

Have they improved it for 2021 model

[@quitodesequera8923]

You know, originally I thought, "nah, that's dumb, no one is going to put that kind of stress on that area without being negligent"..... boy was I wrong. I crashed on my BMC Timemachine 01 (previous gen) last weekend. It has a similar type of fork setup but there is a little plastic bumper to absorb force where this Cervelo would be hitting carbon on carbon or metal on carbon. I inspected thoroughly, no damage to the fork or frame. The little plastic piece was toast but it was obvious it took all the impact.

[@datorfilm]

Could someone PLEASE show some examples of GOOD frames? We need some examples of bikes/brands that are worth buing..

[@hmudesign]

How do the other tt bike manufactures do it? Are there other ones that do it in the same way? Many of these coming out of the same factory, just saying.

[@Headwnd]

Thanks for this very informative video. Gladly more of it. What do you think about the design of Spacialized Tarmac SL6? Or at Specialized in general?

[@mikicastan]

Headwnd I have 3 specialized. I think they have best enginered frames in mass industry

[@michaelrichardson8571]

My 2019 Trek madone is the same. I think this issue is the same with many of the new aero road bikes.

[@josephstefa]

The madone has a road equivelant of the knock block to stop this... well my 2020 does.

[@tristano1998]

What do you exactly mean by „the same“. Cause i thought that frame may be an alternative...

[@Swampster70]

So which is worse, limiting travel, when you fall off or drop the bike, by having the fork hit the frame, or smacking your handlebars against the middle of the top tube?

[@LuescherTeknik]

The top tube is typically simpler to repair than the head tube.

[@domestique3954]

Given the price of that frameset it’s just ridiculous!

[@r.bouth.6457]

Dear bike mechanic.. Which bike will you suggest me ass a good mechanic as a very good bike bud at low cost for me as a amatuer ?

[@i77ac10]

Does the revised 2023 still suffer this design flaw?

[@LuescherTeknik]

Don't know, they haven't shown the design in the media launch and I haven't had one come in, hopefully they have changed it. But that would admit that it was less than ideal when they said it was perfectly fine ;)

[@RevelCris]

Look 795 aero has the same thing or not?

[@Sills71]

This frame has been reviewed by many cycling mags and sites... AND NOT ONE POINTED THIS OUT. Proving they are all just advertising. I AM TALKING TO YOU GCN, VELONEWS ETC.

[@ohshitnotanotherknob]

I think that is understandable, 1/ they are not engineers & 2/ they don't strip the bikes. I think they do have a role in pointing out design limitations once aware, Cannondale BBs anyone?

[@Sills71]

@@ohshitnotanotherknob Bullshit... they should be taking this one apart as it is a new design.

[@JDRVP]

What model year did this design begin?

[@cinellixa]

If your not a pro rider a steel frame and fork is light enough . My friend has a 99 eddy merckx strada os lugged frame set complete bike weighs 18.5lbs . This guy put 100,000 miles on it. I rebuilt it at least 5 times and it still has a good snap to it. He weighs 180lbs, the frame has no cracks and is holding alignment.

[@asamusicdude]

I'll stick to my 2010 Chinello S3 that I've had since 2012

[@savagedabs8536]

Never seen a Chinello s3 what's the price on that frame?

[@asamusicdude]

@@savagedabs8536 I paid 500 dollars on DHgate.its a knockoff cervelo S3.but it's a really good frame build.no noodling and still going strong

[@savagedabs8536]

@@asamusicdude Very cool I'm going to check dhgate as I never even thought to look there for a road bike because the only thing I have ever bought from them was bongs. How many miles do you think you have put on? Clearly its held up well if you are still riding it to this day. Thanks for the reply

[@asamusicdude]

@@savagedabs8536 lol just noticed you're a fellow dabber.i don't have a counter on it yet so don't know exact miles but I would say about 1000 miles.i had the frame just hanging around for a few years because I couldn't afford to build it.meanwile I was riding a pro-lite fixed track bike.

[@asamusicdude]

@@savagedabs8536 they have frames on AliExpress and Alibaba too.but always check for reviews.never get a frame without good reviews

[@durianriders]

Makes TOTAL sen$e to me. If you drop your bike at the cafe then you need a new one. I had a Cervelo back in 2012. Loved it but the FD mount kept snapping off. I got it fixed and sold it. They only cost 2-300USD to make by Fushida in China so the insane mark up is crazy. If you paying more than a grand for a custom painted high end frame in 2020 then you paying WAY too much!!

[@georgesarris5556]

Thanks! I liked the look of these and it was on my list to look for one

[@MegaDavidevil]

on the 2021's model there's the same problem or they have changed something?

[@LuescherTeknik]

Not sure, I hope that it is better.

[@mhthmusicvideos]

Exact szme thing happendd on my 2013 S5. Two big dents on either side of the front fork as a result of it snappuing back and hitting the frame

[@jspaceman71]

Any idea if Factor has the same issue? I notice some of the Factor bikes (eg. the Factor ONE) have a rotating headtube design. factorbikes.com/models/one/

[@PhillioDoede]

This looks like recall level design defect as it is. Honestly pretty reckless, and scary considering how easily and unexpected a frame damage could occur. A bit of shame really as mechanically it might not be a terrible idea. If the cam was not made of metal and instead a hard rubber or plastic and there was a metal insert on the interior of the frame this might have been a workable and good design?

[@jarrodfife242]

What is everyone’s opinion on the best quality bike frame for a top end bike? A madone slr, tarmac sl7, canyon aeroad?

[@sbccbc7471]

Among these three, Tarmac SL7.

[@jarrodfife242]

@@sbccbc7471 it’s had its problems same with Aeroad but both are now fixed. I’d go with the Aeroad though