Why Are Pro Cyclists Doing THIS?

[@gcntech]

Would you ever wear an aero bra?? 🤔 Let us know what you've ever done for the gains in the comments! 👇

[@RoyalDudeness]

I don't need an aero bra! My man boobs and fat belly already make me much faster!

[@bkmontgomery]

No thanks. I get why it happens, but not for me (since my limiting factor is body weight and lack of training)

[@stefanwagener]

Does a beer belly count as well? I guess instead of loosing weight I should gain weight for better aerodynamics ... no UCI regulation there, right?

[@slowturn5664]

I have only recently come a breast 🙈 to this subject. I feel that anyone who needs to be that aero 🛩️ are only asking for support 👙 in their f(L)airing 🛩️desire for speed 🚴.

[@thenobleist9262]

I don’t think I’d wear one, but I do wear a cap every ride and I wonder what aerodynamic impact that might have, if any!

[@samueltennent5861]

In so many videos Ollie strikes a nice balance of being frank and honest but not trying to be 'edgy' or controvesial. Great tone, not just for a cycling channel but as a content creator as a whole.

[@gcntech]

Thanks! That means a lot

[@richm.3477]

Plus mixing in the dry British humour that I appreciate.

[@kpsig]

That explains why I struggled overtaking a 60yrs old happy guy with a rounded belly and a backpack . Now I am relieved.

[@gcntech]

The struggle is real 😂

[@kpsig]

@@gcntech What is even nicer is that he was actually 64 and that he caught me and our group on the downhills! A legend, riding a very nice Colnago (carbon tubes, aluminum lugs)

[@mmurmurjohnson2368]

That was probably me, sorry, best kept secret

[@jamesbland8919]

As a rider who weighs 97 kilos, I have my own built-in aerodynamic features. There's never an issue with filling the gap between my chest and thighs. Big guys for the aero win!

[@cyclingchef3531]

Ball is always faster 😂😊

[@OverMotoren]

This exactly. I have no room when I'm on the bike and only a little on my down leg side, depending how close to christmas we are.

[@harimathur2191]

Beer belly smooth air flow added weight makes bike faster in descents, warms rotor, makes em lighter. Fat is the new fit... think Airbus Belluga.😅

[@tonyg3091]

@@OverMotorenLOL exactly. Room? What room are these guys on about? It is all tightly packed down there, solid stuff.

[@24pavlo]

I'd like to see those guys in lycra beat us going downhill.

[@feralmarmot3305]

I’m not fat, I’m just aero!

[@PhilJohn1980]

It's not a beer belly, it's an aerodynamic device to close a void.

[@gcntech]

That's the spirit!

[@troycollett8540]

Dan might go well at time trials now

[@DittersGustav]

What about non removable aero bellies? Banned?😂

[@chrispyy606060606]

While I think the UCI sock rule is ridiculous I’m not a fan of fake calf and chest/gut implants 😆

[@randomdude5938]

Weird I love chest implants. Prolly been in n LA too long…

[@andrewduncan4908]

Without uci rules all races would be on recumbents. Thank god for the uci

[@gcntech]

They are pretty funky looking! 👀 How big of an advantages would they have to give you for you to consider using them

[@chrispyy606060606]

Haha well the advantages you demonstrated are huge so I’d probably consider it now. A camelback full of ice down the front would also help keep core temp down too which equals more power. I’m a 51-52min 25 mile (40km) on a zero traffic out and back course so am picking at the margins now as it is. 🙂

[@JayLato]

I’m not fat I’m just naturally aero.

[@piercemorrison1202]

I don’t always watch GCN but I’d never miss a GCN tech upload.

[@Relevant_Irrelevance]

so true

[@jascollinscork]

Same 🙋‍♂️

[@gcntech]

Tech is just better, right? 😉

[@markxkovacic]

Why is GCN ignoring the biggest news in the bike world? Shimano's recall of 2.8 million potentially faulty cranks causing crashes and mayhem for years.

[@troycollett8540]

Because it’s only just been announced prob after the last tech show was filmed

[@GCNuser123]

@@troycollett8540exactly that. its been reported on our website though!

[@zygmuntthecacaokakistocrat6589]

it's 640,000, and parts of it have been going on for years. & it's a voluntary, not mandatory recall, dependant on the condition of individual units. Keep your wig on.

[@markxkovacic]

@@zygmuntthecacaokakistocrat6589 Ok, wig is secure.

[@andrewmcalister3462]

​@@troycollett8540Yes, I expect it will be covered in this week's Tech Show.

[@leebrown3645]

"They don't pay me enough for this shit!" Ollie calling it straight. 😂

[@philmcaleer6289]

So as you mentioned that cylinders are horrible aero options, and you looked down at your “massive” cylinders, called arms, it made me think…. How would any skinny cyclist compare to a larger cyclist like your bodybuilder friend Brad? His cylinders are a different shape. We all come in different shapes and sizes. Could be a cool video.

[@stephenwilliams8384]

So my pot belly is an aero advantage 🤔 Yay!!😅

[@harryholmes1971]

Surley silicon printing manufacturing tech is far more accessible now than it was 6(?) years ago? If so, why not just revert the rules to allow them again rather than having teams / companies sidestep the regulations when it's clearly where the sport is trying to go? Permanently banning tech due to the cost of access just seems to slow down innovation imo, and seems pointless when the loopholes get found and everyone starts doing it anyway.

[@gcntech]

Its a funny world concerning what is and isn't legal! For some more tech innovation, why not check out our 'Godfather of power' film on GCN+ 👉 gcn.eu/gop

[@shellypalumbo5297]

Ok, this aero stuff has gone a bit too far, in my opinion. Why would a guy, possibly, want to wear a bra? For a few watt savings? I assure y’all guys, it’s not worth it. 😊 If I did not have to wear a sports bra, I most certainly would not😅😂 What’s next, male pregnancy bellies??🥴

[@kona6812]

Always said my big belly is aerodynamic! Unstopable downhill with a big disadvantage uphill! 😂

[@JMise]

"What are you watching?" "Ollie is doing a Vittoria's Secret bra fitting"

[@haraldfries7463]

hmm, maybe that would be something for my commute.. sleep 30 Seconds longer and be at home 30 seconds sooner as well... An now its dark no one will see it ;-)

[@ElonMuckX]

#askgcntech When will competitive cyclists start using surgery’s to modify their body’s for aero gains? Like butt implants or breast augmentation, will serious athletes add body modifications for competitive advantage? Since cyclists naturally modify their body’s to have a large powerful lower body, thin arms, and a skinny torso, are their any athletes already surgically modified???

[@alexseguin5245]

Was gonna ask this question haha. Soon you'll see professional women cyclists taking over their male counterparts with some "creativity" in the brest surgery department.

[@boamacrae]

So my belly makes me aerodynamic? Get in!

[@whynotride327]

Cyclist clothing looks stupid at the best of times. This takes it to all new levels. Ban this crap and everyone is still on equal footing.

[@MichalBrat]

So you are saying my body is aero now, right? :-) Joking aside, here is a serious question - why then shave your legs and arms? Would wearing shorts sleeves while unshaved have a similar effect disrupting the laminar airflow as those chevrons printed on an aero jersey?

[@mlee6050]

As if you come off and get injured it is easier for the medics and better as no hair goes into the graze/cuts

[@emilvaradi9393]

Maybe they never measured just assumed and perhaps you are actually marginally faster with unshaved legs, ;-)

[@TryboBike]

Are there TT periscopes? So I would not need to raise my head to see?

[@DS-um9hi]

Ssssssssh don't give your ideas away, patent that now!

[@Thezuule1]

Do it like a FPV drone setup. Put a camera on the helmet and have the rider wear some glasses. Just don't lift your head, ever, or you'll be looking at the clouds lol.

[@gcntech]

*The UCI has entered the chat*

[@porkyparry1]

I have always believed that those riders with a large nose and big chins have a significant advantage over the more gamine rider. I believe that if the chisel chinned Forsyth had cycled, no bugger would have touched him.

[@anthonyhomercycling]

Ollie needs a bonus 💵 for this Bra Video !! 😆

[@jasperdomingo639]

mas matulin pag babae 😂

[@andrewmcalister3462]

Perhaps GCN could just give him the video rights to post it on his OnlyFans site? 😮

[@greeenjeeens]

Does the UCI just exist to ban things? The bicycle speed record guys have been wearing these calf fairings for a while. It would make sense for the upper arm too, since they are perpendicular to airflow and they don't move.

[@DanuelNuel]

Ollie you are such a white guy! :D

[@brockjennings]

All these aero gains are negated the moment you need to adjust your nads while in an tuck.

[@mnveloguy]

Or you could just ride a velomobile and wear anything you want (or if you never climb out in public, nothing at all.) I mean, if we’re already doing things that aren’t UCI legal, why not take advantage of the the most stable aerodynamic bike there is? How many upright bicycles can cruise at 30mph on the flat for 120 watts without the aid of a tailwind?

[@WillPower46]

I am so glad to hear that my big belly actually means I'm faster than without it. That settles it my belly is a performance enhancing accessory I will make sure to let the wife and my doctor know...

[@jakecollins6097]

LOL, Actually checked that it wasn't April the 1st!!! What in the name of all that is holy?!!!!!!!!!!!!!!!!!!!!

[@Rgrrgr175]

This violates the code.

[@liquidSpin]

People with beer guts and dad bods rejoice! It doesn't seem to effect aero dynamic drag!! YAY!

[@adink6486]

GCN finally busted Casually Explained and proved that pregnant women are Aero.

[@Timtimzi]

Food for thought…. Just a few years back Simon and Matt were wearing speedos for a video 😂

[@DI-ri9md]

I don't always wear an aero bra, but when I do... My milkshake brings all the boys to the yard... So I stopped wearing it.

[@gcntech]

😂

[@dpomberger]

"They don't pay me enough for this sh..." ... Hahahahahahaha :D I would never wear such crap ... but i don't do races :D

[@sahilhakani5220]

So. I will be more aerodynamic if I have a pot belly?? You’re saying me getting a six pack is actually worse for cycling than a pot belly?? XD😅😂

[@Fred9000F]

Could you publish the necessary watts whitout aero base layer at 45km/h and the necessary watts wearing the aero base layer at 45km/h?😉

[@Fred9000F]

Could you publish the necessary watts whitout aero base layer at 45km/h and the necessary watts wearing the aero base layer at 45km/h?😉

[@Fred9000F]

Could you publish the necessary watts whitout aero base layer at 45km/h and the necessary watts wearing the aero base layer at 45km/h?😉

[@brucehamilton6019]

Israel turning from their "sin", why? bc they are carnal, they never received Messiah and his Spirit that returned. Repentance is turning from carnal understanding of this world, to spiritual understanding of this and the next world. It only comes thru the Spirit. Christians have Christ within them; the two made one, as a promise of hope for the DOTL. When all those who are called will be made one with the One. Made holy by his Spirit and body. It is finished, and Life, Love and the Joy of the LORD is revealed. As him in the Church and the Church in him. The children of God.

[@flyingturtle4559]

It's blasphemous bullshit to refer to these abominations as body fairings. These things should more accurately be referred to as UniBoobs or better yet a Sternum Teat. Have riders really become so desperate to win? Imagine Eddy Merckx endorsing any of this crap and proclaiming how much greater a cyclist he could have been if only he had his own custom fitted Sternum Teat.... really?

[@alexgonzalezMI]

I remember cyclists making fun of triathletes for their weird stuff. Now look 😀

[@iancollins6104]

Okay genius. You missed one important test. Let’s say I make myself a beer belly with Guinness and strong IPA, and I end up with a 5lbs beer belly, what speed do I need to be going to utilise this new aero aid to counteract the weight gain. Asking for a friend (not Dan L).

[@donaldyoung8866]

Yep Ollie making a tit of himself 😂 its clever stuff put across by the Doc in a way anyone can understand, that sets GNC Tech apart from anywhere else. I wonder what our cycling predecessors would make of all this …

[@gerrysecure5874]

What is actually the relationship of frontal pressure force vs trailing sucking force in a cylinder ? I think the suck is surprisingly strong, it's what makes airplanes fly. Dylan Johnson found a bidon under the shirt *in the back* makes a difference similar to aero helmets. Also how much is the drag ratio of bike vs body in different setups? I believe bike aerodynamics itself is vastly overrated vs body position and shape.

[@MrTegner]

Okey so it’s time to grow a belly now!!! 😂 i have just lost my extra kilos… shame on you Ollie!! For bringing this subject up hahaha love the show, lots of love// mr T

[@rodgreenup7017]

Does this mean cyclists should only shave the fronts of their legs, allowing a "hairy backside" to disrupt the wake, reducing the drag?

[@serendipityrecordco9380]

I have always wondered if an ‘aerobeard’ filling the neck to chest void and channeling airflow would have any sort of drag reduction benefit

[@guicho271828]

also: Why not solidfy your beard with epoxy into a solid aero?

[@serendipityrecordco9380]

@@guicho271828 there’s mustache wax for that

[@redalert2834]

Why not wear a velomobile shaped costume? Obviously, it would need to be made of the most expensive carbon fibre imaginable.

[@oranj.h]

Why did you fill them with water? You're not going to drink from them, they're just fairings. Might as well inflate them with air.

[@manueldeubler1127]

Never thought that triathletes are so ahead of the bike packing scene. They just invented the cargo sock!

[@thomasdavidbassett483]

Would my large diaphragm help me. You see loads of riders who will NOT be carrying fat with realy large diaphragms.

[@ABCDFGH69]

Female cyclists could and perhaps should really take advantage of this finding

[@davidharrold9189]

It’s not a great look. Anything for improvement I guess…..😃

[@MrYono73]

What happened to your knee @Oli? Did you take a tumble off the bike or just fall over in the playground? 😅

[@slowturn5664]

Just a thought🫣, UCI may ban the aero bra 👙. If that happens will it be gender specific?

[@obidavekenobe]

Hot debate!!! Which get better fuel economy, a pickup truck with the tailgate up or the tailgate down? 😮

[@mathewrose2951]

#AskGCNTech One thing the tech crew has never measured for science is the correlation between power output, riding position, and saddle pressure. While the correlation is known, I've always wondered if Ollie and Cuthbert could put the strain gauges from a digital bathroom scale into a saddle to measure what percentage of a rider's body weight is pushing down on the saddle at 200 vs. 300 watts and when the rider is upright on the tops versus forward in the drops. You know you want to chop apart a scale and run this test in the interest of science, right?

[@lafkasd]

Τέτοια βγάζετε κ δεν θα αδυνατίσω ποτέ 😂😂😂😂

[@julienrobert3938]

A bidon, if you are french, or pretentious... i'm ok i'm french 😅

[@nemure]

So to summarize this, having a big fat beer belly is more aero because close the gap between your tummy and thighs. How ridiculous all this is

[@tubbytoast2]

I really hope the UCI ban sticking bottles and radios or bagels down the front of ya top ' cos it looks bloody really silly..oh hang on stop press latest trend in UCI events drinking lots of beer for that rounded mid section or really long beards tucked into U skinsuit 😊

[@robertgipson9921]

Great content. But when are we going to understand the science behind Ollie's physics defying hair? 1:45

[@gregmorrison7320]

No I wouldn't wear a bra, but I would carry a bottle in the rear jersey pocket for aero gains and I need to carry extra bottles on long rides anyway. Wearing a camelback or a bottle in the front seems like it would just create extra weight on my arms and shoulders when down in the aero position and I'm not keen on that.

[@davidhenry5925]

I would not go to this extreme on my group rides. I ride with a very active cycling club. We have a group of pro racers that are members and a lot of serious amateurs. Along with a number of not so serious but active amateurs. I spend a lot of time down in the drops on our longer weekend rides and can definitely notice the benefit, but I'm one of the few in our group that does that. Its a basic and easy aero benefit that more riders should take advantage of before they resort to "aero bras".

[@10kmilesy]

Id rather have the textured sleeves, looks much better and probably won't even cost much

[@franksorry2653]

In that gráficos at the end you didn’t really show or explain where the drag is and is created. To the average peanuts eye that showed the same thing twice. Just sayin.

[@savagepro9060]

AeroBra are for TTs🤭🤭🤭🤭

[@rule28Clothing]

Any place you want to go faster. We also have a high speed version designed for 50kph+. As Olly found, our original base layer is designed for optimal performance at 40-45 kph. Above 50kph the high speed version order significant improvements for those that race that fast.

[@francescosaturnino113]

Oh that is a good one 😅

[@troycollett8540]

Explains why skinny climbers are only good going uphill

[@did4h2k]

u might stuff your camelbak on your belly, i stuff some food and beers in my belly, should work out the same :)

[@hugowhite2883]

Can we aero test bellies? Like the aero advantage of being a bit tubby? I am quite fat if you need a test subject...

[@johnhenneberger9063]

I have always wanted to see a test about sunglasses. Wearing them, having them on the back of the jersey, on the front of the helmet, upside down and right side up, and no glasses at all

[@ttmallard]

If your elbows are together TT style the other way to clise what I call a dbl‐vent out under arms to in front of them. Fwiw 🍺

[@sativagirl1885]

In water, or in air ... Legs with stubble are faster than shaved legs or wooly legs: true or false?

[@DickSpencer1954]

So that means my beer belly comes in handy after all lol. Love it .... 69 and feeling fine!

[@mickchaganis6607]

Will we see manufactures molding camel humps into top tubes 🙈

[@Y3riel]

This proofs that women with natural fairings are naturally faster…. 😂

[@douglasbooth6836]

Could be the reason I’m so fast. Large chest/stomach.

[@Real28]

There's a reason all of these principals have been used in the speed skiing. It works, at the more extreme edges.

[@kokonanana1]

You missed filling out a DD bra to see if women have a built in advantage!!!

[@alexanderhall4281]

Airow foils are really plane wings but a bit bunched up or fat.

[@alainbellemare2168]

You want the collapsing air to be as far away from you as possible

[@ua7890]

people can design and sale aero shaped equipment for amateur riders not big sales, but still

[@blaze1148]

More evidence to keep down on your drops as much as possible.

[@wiono]

Does it mean that having a belly makes you more aerodynamic ?

[@kavindabandara]

I am more aero with my belly then. Nothing to worry. Bit more ice cream then 😂😂😂

[@bprocket]

Does that mean my belly is more aero? 👍 And I'd like to see the UCI ban my belly.

[@tonyg3091]

If UCI goes and bans beer belies and love handles for being too aero, I am screwed…

[@magnuscarstensen2328]

Is it UCI legal with the fake calf? Or to put a towel under the chest?

[@Superfast01966]

Does this mean for the very first time middle aged men with a bit of a belly have an advantage 😂

[@reimonandisuwa]

i don't need one. I have that feature build in to my belly .. LOL

[@mmurmurjohnson2368]

My belly's been doling out aero savings for years

[@derf9465]

It's not all about how you go into the air but it's also how you come out of it.

[@Almenhorst]

road bikers would not slip a chance to look more ridiculous on the bike lol

[@MTBScotland]

What happened to Ollie's leg?

[@01FozzyS]

Ssshhhhh,Olie! The UCI watches GCNT!! 🤣

[@shonenl6334]

So an old style wool jersey would trip air better than a lycra one?

[@bigunitcyling]

The camelbak in the front is cool🐫. There is a bunch of us already riding with a natural fairings on our bellies. UCI either needs to bring back the textured jersey or ban that ridiculous bra. Aero bra is a horrendous look. They should just create textured under sleeves or textured leg 🦵 and arm warmers.

[@troycollett8540]

Camelback did make a race vest a few years ago for things like time trials