Yeah! Get him in a recumbent bike. Ez ;). Having "how fast can you go?" challenge, with silly rules (UCI rules) impeding perfomance in every aspect, always feels funny to me. All this technology used to mesure everything, is amazing though.
@philipcooper82973 жыл бұрын
Sure, however giving him a motorcycle would be a poor sportsmanship.
@harshvardhansharma22313 жыл бұрын
he seems pretty tired
@nathanocampo92813 жыл бұрын
Ollie should go faster
@DoNuT_19853 жыл бұрын
I just want to see a GCN special in the yellow TdF plane, that's true aero!
@rossfripp45033 жыл бұрын
Can I just say that, as time has gone on, Ollie has become a really good presenter. Great enthusiasm and "down to earth", enough of a nerd to relate to many of us and a good sense of humour. Keep up the good work.
@Vii_DT3 жыл бұрын
Next challenge: Ollie swims thru custard.
@kritan843 жыл бұрын
Send Hank to do it and it will get done 🙌
@tonycrabtree34163 жыл бұрын
Best comments
@marianneoelund29403 жыл бұрын
Sounds more like a Hank challenge.
@FlatSpinMan3 жыл бұрын
@@kritan84 COMMIT!
@ianmiddel28983 жыл бұрын
Good thing he said 'custard' and not 'used motor oil'
@marekholub86683 жыл бұрын
He even used long aero socks. He's more dedicated than when he did his hour record
@GCNuser1233 жыл бұрын
need all the help i can get!
@LarsRR3 жыл бұрын
The hour record was under UCI regulation, right?
@marekholub86683 жыл бұрын
@@LarsRR IMO it was not. I think his tribars were exceeding maximal legal angle.
@SaintClarence273 жыл бұрын
@@GCNuser123 you should try it on the Dogma F!
@hippoace3 жыл бұрын
i am guessing covering the knees would impede movement and negate any aero gains?
@robertchung49143 жыл бұрын
In order to go 48 km/h on a smooth flat road on a calm day with no interfering traffic at or near sea level, you need a ratio of Watts/CdA of ~ 1500 (slightly more if the road isn't flat or the surface isn't smooth, slightly less if you're riding on a dual carriageway with lots of traffic to push you along, a fair bit less if you're riding at altitude). So if Ollie had averaged 326 watts, his CdA would had to have been in the range of 0.20 or 0.21 m^2, which is a nice improvement from his starting CdA of 0.26.
@keithaustin47053 жыл бұрын
As much as Ollie gets kidded about his biking fitness that was some seriously impressive power. Well done Ollie. If only us mere mortals could go as fast as Ollie.
@AdamNigelDark3 жыл бұрын
326W over 10 miles is seriously impressive. 19m57s FTP 326!
@HooxNZ3 жыл бұрын
@@AdamNigelDark x0. 95 😁
@chriscolabella8803 жыл бұрын
Yup. That's the same as my 20m power, except I'm carrying 10kg more muscle than Ollie, and not in an aero tuck!
@charliesimar75413 жыл бұрын
What ALWAYS amazes me is the ability of the the presenter to speak clearly and with well controlled modulation while explaining technical details as he pedals his bicycle at speed! That takes a special sort of person!
@martinandersson58333 жыл бұрын
Thank God for the tech nerd that is Dr. Ollie Bridgewood! Another great, informative video👍👏
@srinjandas42873 жыл бұрын
Up next can hank do a 10 minute 10k time trial on a 10£ bike
@gcn3 жыл бұрын
😂 We're sure he would try...
@beeble20033 жыл бұрын
£10 bike? Luxury. Make him do a 10k time trial on a bike somebody has to pay HIM £10 to take it off their hands!
@kritan843 жыл бұрын
In custard.
@srinjandas42873 жыл бұрын
@@kritan84 I like it
@ShannonSouthAfrica3 жыл бұрын
@@gcn Make him....
@jonwaijonwaijonwai3 жыл бұрын
Ollie always looks like he's holding a basketball when he talks
@FlatSpinMan3 жыл бұрын
I’d never thought about it but the instant I read your comment it became so apparent.
@srinjandas42873 жыл бұрын
Made it to the gcn show congrats
@mikaelh47433 жыл бұрын
Solo effort, no way to get dropped :D
@nicolasdomise3 жыл бұрын
You guys do such a great job at offering interesting and quality videos! Big fan! And congrats on smashing it!
@oadka3 жыл бұрын
"I want to be as legit as possible" I like this attitude by Ollie!
@devidia3 жыл бұрын
Wow, aweomse video! One of the most informative and interesting video's you guys ever produced! Super relevant for me as i can relate to the numbers. Thanks!
@davepratt99093 жыл бұрын
The best part was the sense of joy Ollie had at the end when he achieved his goal.
@oliviant22353 жыл бұрын
I want to see those that make fun of Ollie, because he has been dropped in other challenges, to ride that bike with the same average speed. He was not a pro cyclist and he is a machine. GCN is very lucky to have him in the team, very knowledgeable and makes very good and entertaining videos
@GCNuser1233 жыл бұрын
thanks mate!
@sebastianboros31403 жыл бұрын
Cracking video! Besides Ollie’s charisma I really enjoyed the science and the effort put into making this clip. Grand tours are won and lost in a time trial.
@qingyuhu3 жыл бұрын
Ollie certainly is my favorite presenter at GCN by far!
@ygtcbee233 жыл бұрын
The Unit of Measure in this film shall forever be know as the "Olie." For instance, a cyclist need only 1.3 Ollie to take KOM up this climb & Training effort in today's class is at 0.7 Ollie for 45 minutes. Oliver's scientific endeavor into great speed at low watts has become a welcome source of entertainment!
@robertchung49143 жыл бұрын
Nice video. I can see several comments regarding: 1. Facial hair. Facial hair doesn't seem to matter as much as arm or leg fur, especially leg fur since the lower leg is a cylinder that churns through the air while the face is mostly "static." 2. Recumbents. Most unfaired recumbents have (surprisingly?) higher CdA than Ollie was reporting on this TT bike. Only a handful of unfaired recumbents have CdA < 0.20 m^2, and they often have other issues including high drive train losses and/or less than optimal tire rolling resistance. The only recumbents that are clearly better than an optimized rider on a modern TT bike have fairings -- streamliners can have a CdA < 0.03 m^2 -- but most commercially available recumbents have a CdA in the range of 0.25 - 0.35 m^2. As a reference, on Ollie's original road bike, he reported that his CdA was 0.26. A few low racers have CdA's in the range of 0.17 m^2, but they often achieve that with odd tire sizes, long chains with idlers, and reduced turning radius.
@MrDazP1adv3ntures3 жыл бұрын
That was a great bit of practical science from the GCN team and as always Ollie adds his own enthusiastic twist to the production. Chapeau Ollie and well done !
@seanoleary7713 жыл бұрын
You know, I'd wondered before about the effect of that motorcycle camera team providing drafting on other tests they've done. Nice to see Ollie accounting for that.
@rickbolten3 жыл бұрын
You think he’d shave his beard if he was serious about aero!
@LarsRR3 жыл бұрын
For Campenaerts, a mustache actually tested FASTER than no beard at all, this the name of his Hour record bike “the flying mustache”.
@FlyingDwarfman3 жыл бұрын
Or flow it out
@D0PPELSCHMERZ3 жыл бұрын
also his eyebrows
@bubblesezblonde3 жыл бұрын
Kudos again Dr. Ollie for not only your accomplishment but using and explaining the maths and science behind your attempt. Also using the Siborg;s HIVE-born technology was an added boon, but your human updates were impressive as well. Thanks you for pointing out the edge sparking water gives humans in their quest for hydration. Love the vids and am looking forward to the Siborg smashing all expectations. All will be assimilated. Resistance is Futile. The HIVE requests the link to said updates to the Siborg's machine.
@srinjandas42873 жыл бұрын
We need to see the siborg back on his bike
@FlatSpinMan3 жыл бұрын
Ha! No, let’s make Dan ride again just for lolz. He’d be so mad.
@robp34313 жыл бұрын
An avid mountain biker and more-recently gravel biker, I've never even hit 30 mph on the flats.....need my aero suit !
@6872elpado3 жыл бұрын
It would be nice to see a similar video where you repeat the effort by removing only one variable, similar to what you mentioned in the end. I'm curious to know if there is only one thing that gives you a bigger step in performance or you need at least two or at least three etc. For example, what is the gain in performance using a skin suit on your regular road bike.
@sionjones16753 жыл бұрын
the air density thing is strange. I often noticed when riding every day to work, that some days the win kind of goes around you without slowing you down, despite it blowing quite strongly. Other days it's far less windy but the wind/air is like a brutal wall.
@John-dh1gh Жыл бұрын
Put a dehumidifier in your house and you'll be surprised at the moisture it takes out.
@marekholub86683 жыл бұрын
TT videos are the best
@arcadiushakim36753 жыл бұрын
Ollie the hour record Last year 2020. That was a great video, you are a real asset to cycling community and GCN worldwide
@JonCannings3 жыл бұрын
Oh deary me Ollie! That bike is certainly not UCI legal with the fairing and those handlebars. P.s. where's the motor hidden 😜
@robbeelsas3 жыл бұрын
Do a guest appearance on GCN tech Jon, we miss you
@JonCannings3 жыл бұрын
@@robbeelsas keep an eye out on GCN+ on the documentaries 💪
@extrospective3 жыл бұрын
UCI legal doesn't matter for 99% of riders
@beeble20033 жыл бұрын
Jon, as you know, fairings, handlebars and even motors really aren't that big of a deal. The real issue here is the flagrantly illegal socks. Millions of children around the world look up to Ollie as a role model and him normalizing this sort of thing causes genuine harm. We're going to see a whole generation of cyclists who don't even understand why wearing long socks is cheating. :shakes head:
@triggamusician3 жыл бұрын
short socks and hairy legs for the win, baby!
@elitedavidhorne84943 жыл бұрын
10 miles in 20 minutes on a bike is epic.
@damu66783 жыл бұрын
These are always the best videos on GCN!
@dan..........3 жыл бұрын
I reduce drag on my rides by taking my wig, makeup, high heels and dress off
@PsyKeks3 жыл бұрын
Wow. That comment was an experience.
@stephankyle64603 жыл бұрын
The tuck is super aero though. Depending on your equipment.
@thesea41202 жыл бұрын
4:10 where he talks about the air density this applies in water in terms of the amount of chlorine, most competition pools are lower in temperature which means they're less dense as they have less chlorine where as a normal non competition pool will be warmer and have more chlorine making them denser and noticeably slower for anyone who swims at a competitive level
@kippen643 жыл бұрын
I would be thrilled with 30km per hour for an extended period of time.
@commanderoof45783 жыл бұрын
I can do about that for around an hour on my pretty crap mountain bike Tho last time i checked my bike is limited to 28mph so the closer i get to that speed the more resistance my wheels turning have Coasting and pedalling as hard as i can down the same hill the speed never goes over 28mph Tho i do need to recheck it i replaced the green crispy slimy crap in my bike with silicon grease so im hoping for a faster top speed tho i dont have time to go test it but i will test it at some point
@commanderoof45783 жыл бұрын
@Pablo Hinze there is a mechanical / physical top speed for bikes For me i am hoping that comes down to the sticky crispy crud they used as bearing grease, Ive replaced it but cant go out and test it But no joke my bike cannot go over 28mph, even pulling it with a car the wheels will just start sliding while still spinning as they cant turn any-faster
@BigBrownMonke3 жыл бұрын
@@commanderoof4578 maybe you have a ebike without knowing that you have a ebike? 🤔 JK … Although it’s your words against mine hahaha
@BigBrownMonke3 жыл бұрын
@@commanderoof4578 U might need new bearings and/or even a pair of budget wheelset and you might go over the 28 mph “mechanical/physical top speed of ur bike” mate! Orrrrr…… just buy a new bike hahaha
@commanderoof45783 жыл бұрын
@@BigBrownMonke its not just my bike i tested every bike in my shead Mine is the slowest at 28MPH Next its 31MPH, 33MPH, 34MPH And then my dada road-bike which i got to 55MPH on and went fuck this i ain’t going any faster and then started to slow down using So ALL BIKES have a mechanical speed limit where the wheels actually cannot spin faster just some that is really low and others where the top speed isn’t going be hit because you will decided to slow down or keep at that speed Ohh and all of this is down a hill by the way at 65 odd degrees that is actual 65 degrees not the road or incline crap 65 degrees where 90 would be vertical Not gonna change 65 degs to an incline because i dont use incline for anything
@xXskaxxkidXx3 жыл бұрын
I need a notification tone of Ollie saying MATHS and SCIENCE
@okrakov2 жыл бұрын
This is an awesome presentation Ollie , I always browse back from GTN to GCN to see your videos :-) Cheers!
@colinmaceachern93 жыл бұрын
Ollie is the Fred Dibnah of the GCN team. You can both see and hear his enthusiasm when he's talking technology.
@edwardnowill44083 жыл бұрын
Most interesting-lots of good science & the go faster kit/cycle look a million dollars.Thanks GCN.
@lexington4763 жыл бұрын
8:34 clearly your video editor used to work on The A-Team TV show 😀.
@SFLocker3 жыл бұрын
Very well produced! Perhaps in a future episode we could see how fast Ollie can go being limited to "enthusiast" level wattages that us mear mortals can produce. Could be a good gear swap video done with real world testing.
@malloott3 жыл бұрын
3:58 swimming though denser material is a bad example, as you float higher and can push harder in denser fluids. Speed can even increase compared to water.
@MartinBrada3 жыл бұрын
The main issue with the comparison in the video is the fact that it refers to difference in viscosity rather than density. Those are two different physical quantities.
@malloott3 жыл бұрын
@@MartinBrada all off the aspects i mentioned are possible with only density
@MartinBrada3 жыл бұрын
@@malloott Correct, buoyancy obviously depends only on density. I was referring to the comparison from the video in general. Custard is not that much denser than water, swimming in custard would be more difficult primarily due to viscosity.
@mlafleurhua Жыл бұрын
Really excellent nerdy video - lots of good info! BTW, bikecalculator estimates that 48kmh requires 405 watts for an 80 kg rider + 8 kg bike with the rider on aerobars on a flat course with no wind. Pretty close to Ollie's calculation of 430 watts. And final nerdy thing, asking google about the density of water vs custard: the two are actually pretty close in density! The real difference is that custard is a non-newtonian fluid - so offers much more resistance than water when significant pressure is applied
@danproposkanovovski3 жыл бұрын
14:05 "how quick you can go even if you're just a mortal like me" and you have, what, 10 to 20 grands lying around?
@SaintClarence273 жыл бұрын
Yeah, but mere mortals *can* go that fast. They just don't because $$
@beeble20033 жыл бұрын
10-20 grand isn't enough to live forever, so he's still mortal! ;)
@matteo.ceriotti3 жыл бұрын
The wind effect does not "average out" on a loop because the aerodynamic drag is proportional to velocity squared, so you need more power to ride with headwind than what you save in tailwind, with the same wind speed. Hence no wind will be faster than windy, even on a perfect loop.
@marcellon20033 жыл бұрын
30mph is my top speed when I'm sprinting... with a tail wind... going downhill... getting a draft
@marcdaniels90793 жыл бұрын
In the car
@marcellon20033 жыл бұрын
@@marcdaniels9079 that’s a bit over the top
@shaldon083 жыл бұрын
best take up tennis then mate
@marcellon20033 жыл бұрын
@@shaldon08 nah, too much power output... considering chess instead.
@galenkehler3 жыл бұрын
He was getting a draft. That's why they didn't film it, you'd have seen he was drafting off the passing traffic.
@davidking36993 жыл бұрын
Great effort... only way I can get close to such numbers is on the indoor trainer... wind resistance is the biggest factor... could save another 5-10 watts by shaving (your face)... that is a frontal area factor that would create some turbulence and upset the airflow...
@moritz_swm85803 жыл бұрын
4:00 for the swiming thing it acctually doesn't change anything in what type of fluid you swim because in a thiner one you can't push your self as far as in a thicker one bur also have a smaller hydrodynamicdrag
@depfeffel64553 жыл бұрын
Custard is a non-Newtonian fluid, so it is different to water, in that it behaves more like a solid on impact (side of hand stroke, kick). Same as ketchup
@bbldox3 жыл бұрын
New and updated choice of music is 👌
@simonkent32273 жыл бұрын
Assumption 1, ignore tyre squirt for the pitot tube. Assumption 2, ignore turbulence. Assumption 3, I'm being incredibly charitable.
@davecook18053 жыл бұрын
Comments like 'less dence air is thiner' and 'its much harder to swim through custard' are exactly the reason we love Oli: you can always rely on him to break down the science for the layperson!
@vonvaderham47743 жыл бұрын
That's really interesting on my TT bike (which is just a modified aluminium road bike with a disk and tri bars) I can get low and aero myself but the bike is not aero at all. in one of my latest TT's I did a 10 in 23:26 with an avg power of 319watts. it goes to show how aerodynamics can help so much. (my excuse to ask my dad for a proper TT bike)
@gregorygoldbarth74643 жыл бұрын
Awesome video as always. Thank you Ollie I would like to introduce a counterpoint to denser air as you are correct in regards to the down side versus less dense air. However one component that needs more analysis is denser air is more oxygen rich which means that You should be able to biometrically produce more power/watts/ improve FTP. A Vo2Max would be interesting of dense air versus less dense air with metabolic improvements That may counter arrow dynamic drag. I would be interested for anyone to comment on this. Another words taking in more oxygen rich air versus less oxygen rich air?
@SuperNeilB3 жыл бұрын
Don't think the amount of oxygen in the air makes any difference. As long as there is more than around 17% O2 in the air your body will absorb 4% of it. Even if you breath 100% O2 you still only metabolise 4%. Some O2 may be absorbed into the plasma as well as the red cells but that just helps transport, your body still only uses 4% of the O2.
@gregorygoldbarth74643 жыл бұрын
Thank you Neil, awesome medical info!👍🏻
@JMcLeodKC7113 жыл бұрын
@ 2:10 So does that device replace a wind tunnel?
@rkan23 жыл бұрын
Only somewhat.. It doesn't provide static different speed winds but it can certainly estimate a lot of things in actual conditions.
@skippy29873 жыл бұрын
Hey @Global Cycling Network , when are we going to see more Velomobile stuff? I need some motivation to build one and hassle our local roadies (because I've got no hope in a fair fight, I'd need a couple of years training)
@Unpreeeedictable3 жыл бұрын
Very informative video! At the risk of being Captain Obvious, 30 mph is above the pay grade of most of us. While the power differential between aero and non-aero setups is massive in this test, for us 30 KM/HR (not mph), that differential on a percentage basis will be much more modest.
@kevinmoore88963 жыл бұрын
Well done, Fair play, despite all the aero stuff, doing 30 mph for a ten is a seriously good ride.
@DavidFritzIII3 жыл бұрын
@8:40 we've completely tricked this out with 58t one by, dirt on the chainstay... that must be to attach the flow?
@aarondcmedia95853 жыл бұрын
Aerolab lease their tech and the price is nothing short of hilarious. 430W for 4 minutes is damn impressive. Your FTP was 300W I thought? Well done on cracking the 30 mph barrier, that's inspiration for me for sure.
@GCNuser1233 жыл бұрын
it’s important to distinguish the road bike from the tt bike when talking about ftp. climbing a mountain i could do more at the moment. i’m always less on the tt bike. but feel free to follow on strava. all the numbers are on there.
@aarondcmedia95853 жыл бұрын
@@GCNuser123 yeah I am less on the TT bike too, I get you.
@sergiomessina20372 жыл бұрын
Fantastic video! Just out of curiosity, how much did it cost to prepare for this effort? I don’t think most of us can afford the equipment Ollie used to reach this impressive achievement. So what was the cost of all of this Ollie?
@torbis752 жыл бұрын
I did it. Got so eager watching this, and always wanted to take the timetrialer in me to the full potential. I promise you, its expensive. at least 13000pund I have spent, but worth every penny. I became the Norwegian, and Nordic champion I Masters class, and In the Nordic one beating all other participants with 30sec or more over 28km. I am 47years and the classes starts at 30 ;-). The bike in this form is a true dream. You can cruise around with it at 40km/h barely pedaling if its flat ;-). Silly, silly fast if you get into the right position. Sure other bikes also are, but I never tried any other bikes. Just went for this one when I saw Oliie was that fast. 48km/h......
@torbis752 жыл бұрын
But mine is UCI legal.
@shenzhenpingpong3 жыл бұрын
I posted this in the Velomobile Facebook forum this morning, and some recreational velomobile riders reckon they could beat Ollie. Can you do a video with either that Milan or Alpha7 velomobile you borrowed from Velo-Ads? I think it'd be a cool match-up.
@Arno7803 жыл бұрын
Absolutely love the datageekery ! Well done Ollie !
@joshowens653 жыл бұрын
I’m surprised no one has come up with a brake cowl like seen on MotoGP Ducati to improve aero around callipers
@goldreserve3 жыл бұрын
20m@ 326w no sweat, breathing normally. Ollie World Class. 👏🏻👏🏻🏆👏🏻👏🏻
@pokie06223 жыл бұрын
We love your excitement when you ride a bike. It is inspiring.
@JonCannings3 жыл бұрын
This is a SWYTCH bike!
@wellergames81523 жыл бұрын
no, THIS is a SWYTCH bike!
@gcn3 жыл бұрын
😂
@Kimberly_Sparkles3 жыл бұрын
Dear god, If I never hear about swytch again.
@matteo.ceriotti3 жыл бұрын
Next GCN sponsor
@philipwooldridge96063 жыл бұрын
Without a fancy gadget I estimate my CDA as brick.
@keirfarnum68113 жыл бұрын
I estimate mine to be 16 wheeler semi truck. It’s all in the belly. 😁
@martinhayes84903 жыл бұрын
“I’ve just completed my 10 mile Time Trial” and not out of breath or sweating like, well Si 🤣?
@kamucho3 жыл бұрын
Amazing effort Ollie!!
@hahahhahahaha59863 жыл бұрын
What an amazing video
@markleeming37673 жыл бұрын
My partner and I met Ollie at the TT he did and its fantastic to see the results. One quetsion though, how big a part does weight play? I know its not as big a factor as cda but my partner is 55kg and I'm 95kg. Frontal area, aside, how many more watts are required? the 10/17 has some gradients, I suspect this has more impact...
@robertchung49143 жыл бұрын
Seriously? 40kg more weight would require less than an extra 20 watts -- probably in the 15 or 16 watt range.
@markleeming37673 жыл бұрын
@@robertchung4914 yup there's not much meat on her bones, despressingly low cda! lol.
@neildaniel82323 жыл бұрын
If that course is the one I think it is (A40 dual carriageway between Abergavenny and Raglan) then I'm positive I saw Ollie doing this. Not my idea of a particularly safe course due to the trucks, plenty of opportunities to pick up a tow though! There must be a faster course you can send him to, see if he can crack 35mph!
@secretagent863 жыл бұрын
fantastic time! my pb in 1974 was 24 minutes 30 seconds for 10 miles (road bike of course)
@GCNuser1233 жыл бұрын
rapid on old bikes that!
@grogangreen3 жыл бұрын
Sparkling water...in a fancy glass bottle...in a pub garden...? Your Yorkshire card has been revoked.
@finniansmith76973 жыл бұрын
pause the video at 3:00 , look at the date in the bottom left corner. this really is futuristic.
@effortsbeyondemotionsmc88233 жыл бұрын
9th June 2021, you might read days/months in a different order where you live ;)
@kstethespokes10513 жыл бұрын
Why do your knees get left out of the NoPinz suit / socks combo, are they naturally more aero (I mean they are quite bony!)? Why not a full body suit (UCI?)?
@MeFreeBee3 жыл бұрын
Is it really harder to swim through custard? Increased resistance also means your hands push back more effectively. Maybe they cancel each other out? Custard is also thixotropic so will thicken under the concentrated pressure from your hands an arms, but less so over your entire body moving forward.
@GCNuser1233 жыл бұрын
admittedly i’ve not actually researched the hydrodynamic effects of human propulsion through non newtonian fluids, but i guess most people get the point i’m trying to make!
@donaldrieger3813 жыл бұрын
I watch the video backwards. Ollie jumped behind a tree and came out in drag clothes.
@MrPeperoni793 жыл бұрын
4 Minute@430W is already quite fair. VO2Max in in the upper 60s with Ollie'S physique.
@dickenscider46773 жыл бұрын
ah. GTN uploaded the anti-aero video, and ollie is here. Coincidence? I think not!
@davidf22813 жыл бұрын
Ollie's videos are always great.
@carnsoaks13 жыл бұрын
TV trickery abounds. Not even puffing, Ol'boy rides in, 'I dd it.'
@JThelen10313 жыл бұрын
For stuff like this where you can't use a chase vehicle, what about using a follow drone? There's quite a few models out there which can be set to ID an object and follow it.
@zenpharaohs3 жыл бұрын
Well the helpful little table on the M5 site says that you need 250W to do 30mph (=483kph) on their Carbon High Racer. We don't know exactly how they got these numbers on their site but it is thought that it came from measurements. It is worth recalling that yes, this is the bike that holds the actual hour record (not the one shown in your video which is slower) so they are not kidding about how fast it is. And, their are people who regularly commute on this bike. So it is an eminently roadable bike. www.m5-ligfietsen.nl/site/EN/Models/Carbon_High_Racer/
@Esperluet Жыл бұрын
11:10 Quick at calculating as well !!
@chiefsilverback3 жыл бұрын
I'm curious how that sensor works, how does it measure the CdA of something behind it? I had always assumed that coefficient of drag was based on physical measurements of the thing creating the drag?
@robertchung49143 жыл бұрын
The sensor mostly measures air speed (plus acceleration and air density and gradient and a few other things). When combined with data from a power meter (you can see that he's using a Quarq) and a speedometer, it can figure out what the CdA must be in order to go that speed with that power. Then you can use that measured CdA to figure out how much power is needed at different speeds (like, 30 mph).
@pistolpeteOH2 жыл бұрын
May have been discussed already but a more relevant metric would be watts per kilogram. Was that noted anywhere?
@CaneSugarHD3 жыл бұрын
1:27 your right knee is moving in and out in a circle, probably a bunch of gains to be made on your riding position if I'm honest.
@mattdubya3 жыл бұрын
Do you have have a link or document available for the Power calculation with all the variables noted? I'd be interested to see the difference in those calcs for the separate attempts.
@robertchung49143 жыл бұрын
The power equation is pretty well understood, if not well known. You can find it here: pubmed.ncbi.nlm.nih.gov/28121252/ (or doi: 10.1123/jab.14.3.276)
@mattdubya3 жыл бұрын
@@robertchung4914 This is nearly what I was looking for, I was wondering if they had the calculation available with the different specific variables that were used for this test. Mostly interested in my own comparison on the information, I've always found it interesting. Regardless, thank you very much for the link. I haven't read that paper yet.
@robertchung49143 жыл бұрын
@@mattdubya If you have a power meter, a dedicated speed sensor, and a road that is protected from the wind you can do your own testing without the extra sensor they use (the sensor measures air speed, so if you test under calm conditions your air speed will be the same as your measured ground speed). Then you import your data into Golden Cheetah's Aerolab module (Golden Cheetah used the name Aerolab before the company that created that sensor used it). The advantages of the sensor are that you can test when the wind isn't dead calm, and it will do most of the calculation for you without having to download the data and import it into some other software and play with it. But, when the wind is dead calm and you're careful, you get the same information.
@andrewgturnbull3 жыл бұрын
Great Effort! However.... There is a reason that the R10/17 is the fastest course in south wales - It's a dual carriageway with all the traffic assist that comes with that. The traffic is worth a significant amount of watts.
@andrewgturnbull3 жыл бұрын
Can Ollie go back next week and ride the same TT on the road bike?
@lexington4763 жыл бұрын
4:03 I think Ollie volunteered for his new video idea 🙂.
@jannicklange73183 жыл бұрын
gogogo @GCN does science
@5filliou3 жыл бұрын
Imagine how fast he would have went if he was clean shaven? He has to take the aero commitment more seriously! Enjoyed the video.
@oadka3 жыл бұрын
I notice that Ollie on a road bike has about the same drag co efficient as a Tesla Model 3 I also like how happy Ollie looks at 8:38...very nice
@feedbackzaloop3 жыл бұрын
he referred to CdA, while for model 3 0,23 is only Cd. Given that frontal area of a cyclist is about 0,4m2 while for model 3 it is 2,20m2 - no, when you compare apples to apples, numbers differ too much
@toonverbruggen73513 жыл бұрын
Imagine a Tesla going at 30 mph with only 300 watts... Would be fantastic hahah
@D.MacLeod-SBRT3 жыл бұрын
Does anyone know what the box at 8:20 is used for?
@freshturns_snowboarding3 жыл бұрын
I once got an e-mountain bike to 48km/h on a road... The wild thing about that is that the limiter on e-bikes in Canada stops at 38km/h, so anything beyond that is done entirely *by the rider* on a 45lb full-suspension, non-aero bike. Pretty impressive hey? I did it for one city block lol
@dida08243 жыл бұрын
Would like to see how just change in clothing helped his drag numbers on the road bike.
@depfeffel64553 жыл бұрын
Yes! Same. I ride with my brother who hasn't got any kit at all, I'm in my bib shorts and jersey watching his t shirt and jeans flapping around wasting energy. He's an engineer too which frustrates me immensely haha
@christopherhume88963 жыл бұрын
"Sparkling water because I'm a serious athlete now". Beer Garden. 😁
@aliensporebomb3 жыл бұрын
I thought it would have been neat if they could have had one of those "follow me" drones following Ollie on his time trial attempt but then I realized.....I can't think of any commercially available drone that could follow a rider for ten miles at that speed. Brilliant video, good one Ollie!
@goldreserve3 жыл бұрын
Several cheap drones have 3 mile broadcast range (loop radius) and can do close to 30 mph for 20 minutes.
@JLongTom3 жыл бұрын
13:07 Yeah, food for thought. If we fail to buy any one of the expensive bits and bobs made by the sponsors, a bad thing will happen. Deep, man.