Did you do one run at 50 km/h with aero wheels at sphinx position to see the difference. This result shows to invest in skin suit and all than deep section wheels. It gets worst outside battling turbulenct air for deep wheels
I feel cramped when I get in the Sphinx position and my knees come very close to hitting my elbows. It's ok in the drops. Should I get a longer stem and/or bigger bike? (I can't slide my saddle back far enough to make a difference) I want to get a full out aero bike soon anyway.
Lots of factors ! Are you flexible enough ? Watch EP1 What’s your crank lenght? Maybe too long Do you rotate your hips forward ? A bike fitter can help you for sure !
For maximum power you need your wrists touching your hips. Imagine you are holding a skipping rope and its under your feet while standing. Now try to snap the rope. That's how we as cyclists put more force on the pedals than just our natural body weight. Now imagine trying to snap the rope in this sphinx position, its an aero advantage not a comfort/strength position. If you ride for comfort or aero choose your own stem ergonomics, if you want power tune for body to suit the bike.
The disadvantage of track testing is that you have almost zero yaw. To see big improvements with deep sections on wheels or frames, you need yaw for the sailing effect.
You know what else would have been a good test? Testing another rider who is the same height as Charles but they are bigger than Charles. I am about the same height as Charles but I'm a gym junkie who is also a cyclist. I would love to know how much drag are these big arms and wide back and shoulders 😅
It's been tested indirectly. Can't recall who it was on YT, but shoulders + arms seem to make the biggest difference of everything your body has that can be changed. A thick back is not a big problem because of the shape when you're in an aero position. Thick legs aren't aero either, but they compensate by giving more power.
Meh in the classics you only see like 25% on 50mm+ wheels? So not so sure if you take deep wheels in race where you need to twist, turn, accelerate alot
The so called Aero expert is wrong. The best place to aero test is the wind tunnel when it comes to yaw angles. The track is not a real world scenario. Unless you’re riding exclusively on the velodrome then yes the track is good. But for the road, when is the wind at zero degree yaw. Very rare that there is no wind.
Thank God that Charles is also testing Tadej's aero haircut!
AHAHAHAHHAAHAHHAAH
Dude ca ferais un super bon vidéo clickbait
@@CharlesOuimet ohhh le casque penche -> th-cam.com/video/cVRLr9vZZyo/w-d-xo.html c'est quoi ca 😀
Psyched to see how you incorporate the learnings this season! 💪💪💪 Really insightful look at the science behind aerodynamics & speed.
Great video. The quality is off the charts. Quantifying how small changes affect Aero gains (watts saved) is really interesting.
Thanks!!!
This was fascinating… especially when switching to the aero kit vs the original kit… 🍻
Thanks dude !!!
Voir que je n'ai pas vu ca avant! Super vidéo Charles comme toujours. Merci pour tes recherches.
Des tips pour aller plus vites dans les rides des Intrépides!!
Did you do one run at 50 km/h with aero wheels at sphinx position to see the difference. This result shows to invest in skin suit and all than deep section wheels. It gets worst outside battling turbulenct air for deep wheels
Unfortunately we ran out of time to test at high speeds, but since drag is exponential, the higher the speeds the higher the saving would be !
Très bon charles tes vidéos. Très bien réalisé merci !
Merci 🤩 de
I love the way you are are looking at factors we fellow amateur cyclists can all work on 👍
Thanks !!
Geoff is a legend. Nice vid!
He is!!
I feel cramped when I get in the Sphinx position and my knees come very close to hitting my elbows. It's ok in the drops. Should I get a longer stem and/or bigger bike? (I can't slide my saddle back far enough to make a difference) I want to get a full out aero bike soon anyway.
Lots of factors !
Are you flexible enough ? Watch EP1
What’s your crank lenght? Maybe too long
Do you rotate your hips forward ?
A bike fitter can help you for sure !
For maximum power you need your wrists touching your hips. Imagine you are holding a skipping rope and its under your feet while standing. Now try to snap the rope. That's how we as cyclists put more force on the pedals than just our natural body weight. Now imagine trying to snap the rope in this sphinx position, its an aero advantage not a comfort/strength position.
If you ride for comfort or aero choose your own stem ergonomics, if you want power tune for body to suit the bike.
Great vid! So drops and sphinx the same for u on the day?
Sphynx is still a bit faster
@@CharlesOuimet Good to know thanks
The disadvantage of track testing is that you have almost zero yaw. To see big improvements with deep sections on wheels or frames, you need yaw for the sailing effect.
Can’t have a perfect test !
How many km is per lap in a/this velodrome?
Yessir avec le king!
Le kingggg 👑
Super video!
Ca coute combien les habits Aero ? 2000-2500$ ? wow!
Pour les prochains tests, ca serait peut-etre bien d'inclure des dénivelés
Le skinsuit 500
Casque 300
Soulier 500
Gant et bas 100
🤪🤪
Full aero dork mais tu mets pas la visière du Giro Vanquish??
Y’a ben des limites !!!!!!!
You know what else would have been a good test? Testing another rider who is the same height as Charles but they are bigger than Charles.
I am about the same height as Charles but I'm a gym junkie who is also a cyclist. I would love to know how much drag are these big arms and wide back and shoulders 😅
Lmao same
Ahahah yes !!!!
It's been tested indirectly. Can't recall who it was on YT, but shoulders + arms seem to make the biggest difference of everything your body has that can be changed. A thick back is not a big problem because of the shape when you're in an aero position.
Thick legs aren't aero either, but they compensate by giving more power.
For what race are you aero testing for?
All season 😎
I have pursuit handlebars so naturally I go in sphinx position. Are bullhorns UCI legal?
Not in a bunch race !!
Geoff ! The best!! 👌
Yessssss
Another great video.
Great content 👌
Thank you!!!
Charles!! That was a great episode Brother! Very good information.
#RobbArmstrong
Thank you so much !!
legend.. real world stuff! the u
Thanks !!!
Enjoying this. I’ll have a question for you in your dm soon
Sure!!
LETS GOOOOO!!!!!
Yessss 👍🏼👍🏼👍🏼
First time I've heard of the aero on the hoods position called the 'Sphinx" position. Canadians? 🧠
It’s a good term 👋🏻
I wonder how much % I could get compared to the casual clothes I wear when riding...
surely a lot!
65mm wheel seem not much aero benefits compare to 45mm ...
2%!
Comparing 45 to 65 is known to be very marginal. The big jump is going from non-aero wheels to one’s of any reasonable depth
Nice
Thanks !
TABARNACK 😂
Ahahhahhhah peux pas controller un bon sacré québécois de sortir
2.6% diff from 45mm to 60 is nothing
Well, at 300w and 40 kmh, thats 7.8w. I wouldnt say its nothing :)
46mm front 54mms back
60 front 67 back
To be precise
Deep wheelslp make the biggest gain in crosswinds, where they then begin to act as sails and perform negative drag depending on yaw.
Meh in the classics you only see like 25% on 50mm+ wheels? So not so sure if you take deep wheels in race where you need to twist, turn, accelerate alot
The so called Aero expert is wrong. The best place to aero test is the wind tunnel when it comes to yaw angles. The track is not a real world scenario. Unless you’re riding exclusively on the velodrome then yes the track is good. But for the road, when is the wind at zero degree yaw. Very rare that there is no wind.
Valentino Rossi etait pas disponible pour conduire la moto !
Malheureusement!!! Bientôt who knows 🤪
nice
Thank you
love these kind of videos but i guess its needs a lot of time and money to produce them
Sphinx planks anyone?
ahah i dont know if it would help!