The Draft Effect | How Does Slipstreaming Save Energy Whilst Cycling?

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  • Опубліковано 28 вер 2024

КОМЕНТАРІ • 315

  • @gcntech
    @gcntech  3 роки тому +22

    Do you draft wherever possible? Or do you always do your turn on the front? Let us know in the comments below!

    • @OFFSHOREDOUG
      @OFFSHOREDOUG 3 роки тому +4

      Go out with local club. Draft normally at the end to not get dropped(Ollie). 5, 5 heart bypasses and overweight for a cyclist I need to draft.

    • @KenSmith-bv4si
      @KenSmith-bv4si 3 роки тому +4

      Do I draft? Of course I do I'm 65yrs, duh.

    • @charlesjames4194
      @charlesjames4194 3 роки тому +2

      Nope. Drafting AKA Tailgating is a crime and punishable by a fine. There is a significant increase in risk of harmful injury, property damage, and expensive medical bills when travelling too close, too fast, and on wet roads. I am not an actuary but I imagine that as the size of the peloton increases so does the risk of a larger crash for the man in the middle or the back of the pack.

    • @francisling3196
      @francisling3196 3 роки тому +4

      Everyone needs to take their turn, even if it's only for a few minutes

    • @OFFSHOREDOUG
      @OFFSHOREDOUG 3 роки тому +4

      @@charlesjames4194 get a life.

  • @aidedcamp
    @aidedcamp 3 роки тому +81

    Ollie: "As a rule of thumb if you're racing draft whenever you can"
    Important exception: don't draft when crossing the finish line if you want to win the race ... you'll be second in the best case ;P

  • @galenkehler
    @galenkehler 3 роки тому +192

    Unfortunately you have to stay IN the draft to benefit, doesn't work if you get dropped...

    • @gcntech
      @gcntech  3 роки тому +55

      This is unfortunate, it's true.

    • @iberiksoderblom
      @iberiksoderblom 3 роки тому +2

      LOL :-D

    • @svensayre1189
      @svensayre1189 3 роки тому +2

      light job at Ollie big oof

    • @coachrobwille4176
      @coachrobwille4176 3 роки тому

      You only get dropped because you are not as good as a rider as the others. Drafting is all in your mind.

    • @leonelgraca
      @leonelgraca 3 роки тому

      Learned that the hard way, never to allow to get dropped as better quit all together if one is on the limit of keeping up already.

  • @Avioto
    @Avioto 3 роки тому +34

    Whoever is doing the animations deserves a raise 💷

  • @NickBorders
    @NickBorders 3 роки тому +5

    Could you cover drafting etiquette in a group or even coming up on a group of riders you're not part of? How can you join in without being awkward, if at all?

  • @mopedvieh
    @mopedvieh 3 роки тому +12

    CFD is fine for Ollie, but when it comes to cm or mm...things get tricky 🤔

  • @hugobci
    @hugobci 3 роки тому +2

    Sometimes riding uphill the trucks passing a feel centimeters from my skin actually helps to climb.

  • @jliho1
    @jliho1 3 роки тому +1

    Loved this video. Keep on the good work GCN.

  • @dezoksiribon
    @dezoksiribon 3 роки тому +10

    olli forgot his science glasses when saying, that 500 cm is a half of a meter, cause with the glasses he wouldnt do this mistake:D

  • @UltimateBallaPOM
    @UltimateBallaPOM 3 роки тому

    Absolutely fantastic video!🤝🏿

  • @glennoc8585
    @glennoc8585 3 роки тому

    Drafting is a godsend on a group ride when your doing
    So true about being number five or six at the back, you really need to get close and low otherwise you work harder. In a long chain you can feel the efficiency drop as you go from 3 to 5 to 7. Definitely drops off.

  • @mg1060
    @mg1060 3 роки тому +4

    In the future could you go in to more specifics on how a riders physical size effects the draft please. I am only 170 mm tall and weigh 72 kg and often hear complaints and moaning from the bigger riders that they get no draft riding my wheel. Exactly how much less draft are they getting off me as opposed to a rider of their same size or bigger? Thanks Ollie.

    • @CyclingSteveL
      @CyclingSteveL 3 роки тому +2

      You must have to pedal really fast to keep up with regular-sized riders ¦D

  • @nickrossuk
    @nickrossuk 3 роки тому

    Really interesting video - thank you. I can imagine Ollie’s heart sank a little in the planning meeting when this idea for a video came up…

  • @diogofso
    @diogofso 3 роки тому

    Ollie playing with the toy car is very funny 😂😂😂

  • @DonutEndurance
    @DonutEndurance 3 роки тому +1

    I got to items I’d like a deep dive into. First, does the weight penalty for clip-on aerobars out weigh the aerodynamic benefits (time trials and gravel events)? Second, how much damage does a handlebar bag do to aerodynamics?

    • @adambrickley1119
      @adambrickley1119 2 роки тому

      1st question is no, they actually tested this on gcn.

  • @coachrobwille4176
    @coachrobwille4176 3 роки тому +1

    I never draft I always ride alone. All my bikes have aerobars. Aerobars are always more aero than drafting

  • @nerigarcia7116
    @nerigarcia7116 3 роки тому

    Whoa, the bike changed in the background

  • @matthewshadrick3094
    @matthewshadrick3094 3 роки тому

    Unrelated BUT Ollies laptop is awesome

  • @patrickwalsh279
    @patrickwalsh279 3 роки тому +2

    Dave Stoller got himself and his Masi up to 60 mph riding behind that Cinzano truck....

    • @michaelb1761
      @michaelb1761 3 роки тому

      And, now we know how. Given the stats Ollie provided for riding behind a car or motorbike, imagine how low the drag was behind that Cinzano truck.

  • @cyclingnerddelux698
    @cyclingnerddelux698 3 роки тому +2

    As Ollie demonstrated in a past episode, you have to stay in the draft, to take advantage of the draft.

  • @bonzainutter
    @bonzainutter 3 роки тому +1

    Why do the pros not use a tri spoke wheel anymore?

  • @williamaylmer2194
    @williamaylmer2194 3 роки тому

    What's the protocol if any, in the pro peleton? Is everyone supposed to take a spin in front? Why would anyone take point unless they were about to attack from the front?

  • @mmenjic
    @mmenjic Рік тому

    And no one measured the heat, if you ever drafted large group or vehicle, it gets really hot really fast if you are pushing the speed to the max or there are hills in the way, so how much does heat reduces your performance and taking that into account what is the perfect position to draft on warm days compared to cold days where you would want to have some heat?

  • @Zeekos126
    @Zeekos126 3 роки тому

    Enjoyed this. Would like to have heard a bit more on the variation of drafting benefit compared to the speed of the group.
    Do the % reductions in drag(compared to a single rider) remain constant, regardless of the speed of the group🤔?

  • @AirSpace
    @AirSpace 3 роки тому

    I thought Dan was the expert on pulling drafts!

  • @MegaToddski
    @MegaToddski 3 роки тому

    @6.12 two tubulars rolled on team car 😉

  • @russellmoore1533
    @russellmoore1533 3 роки тому

    Riding really close to inexperienced riders can be dangerous, one false move by the rider in front and they can take you down. One trap for newbies is riding straight behind another rider, and they get out of the saddle for what ever reason, and it feels like their bike reverses into you, I always ride slightly off to one side for this reason.

  • @joshburg09
    @joshburg09 3 роки тому

    Curious: what is the actual physics phenomenon that reduces the drag when drafting. Is the air behind the front riser more turbulent? Does that reduce air density or just how it flows? Curious to know more about the fluid dynamics that crest the drafting effect. Thanks for the video!

    • @tychoMX
      @tychoMX 3 роки тому +1

      it's a low pressure zone that's the result of something moving through a fluid. The area round the front riser does get more turbulent - depending on the speeds, viscosity and density of the fluid this could actually be classified as "turbulent" (based on Reynolds number), but at lower speeds or higher viscosity it could still be transitional or laminar flow - so not many "eddies" in the flow. In any instance you still get the benefit of the object in front of you because it already did the "work" to push against that section of fluid.
      Fluid dynamic is serious business with complex math. I am more familiar with the opposite case (moving a fluid in a pipe) from engineering classes, but the principles are similar and we did study motion of objects through air. Fortunately, there are a few of sites describe this with nice animations and graphs .

  • @razorree
    @razorree 3 роки тому

    you could say something about overlapping wheels, and show some crashes ....

  • @livinginsyn4814
    @livinginsyn4814 3 роки тому

    There's a lot of talk in pro triathlon that 10m draft zones are too small for the speeds the pros ride at, any data on distances like that?

  • @Allride_
    @Allride_ 3 роки тому +1

    When your mistake in metric units is more consistent than the decorations on the wall

  • @chrisperceval193
    @chrisperceval193 3 роки тому

    Is there an advantage for the front rider in having someone behind caused by the rider behind preventing quite such a large area of low pressure or vortex etc behind the front rider? I ask as in NASCAR racing having a car very close behind makes the front car go faster in part due to the car behind 'taking the air' over itself rather than letting the usual huge area of turbulent air and low pressure form.

    • @taufikabidin412
      @taufikabidin412 3 роки тому +1

      Yes. That is why many recumbent bikes have aero tailboxes to clean up the flow behind

  • @01FozzyS
    @01FozzyS 3 роки тому

    Where does one procure those cycling figurines,professor O. ?

  • @arranwhiteford8785
    @arranwhiteford8785 3 роки тому

    What is the dominant resistance below 15 km/hr?

    • @Simply1ism
      @Simply1ism Рік тому

      Mechanical resistance of the bicycle and gravity (net of a route.)

  • @Nancy___1g7z
    @Nancy___1g7z 2 місяці тому

    Stay ahead of the game with an exclusive interview featuring Binance’s CEO on future developments

  • @anthonyhilchey8215
    @anthonyhilchey8215 3 роки тому

    #gcnTech I just got a SRAM AXS Mullet build on my new Cervelo Áspero 1X 42t front cog ⚙️ it’s rubbing/Scratching Frame as I turn the crank can you have advice on what to do I’m not mechanically inclined?

  • @kristiankljaic9438
    @kristiankljaic9438 3 роки тому

    What wall mount is this?

  • @matteo.ceriotti
    @matteo.ceriotti 3 роки тому +2

    1:35 km/h or sometimes kph, never seen kmph before.

  • @noptimized
    @noptimized 3 роки тому +163

    Ollie never got dropped, he just made a conversion error from millimetres to centimetres!

    • @alynlambert4855
      @alynlambert4855 3 роки тому +2

      A little bit of a difference there Bridgewood... I thought 150cm felt like a long way to be off a wheel.

  • @bikepackingadventure7913
    @bikepackingadventure7913 3 роки тому +85

    So is this why drivers tailgate my arse whilst cycling, so they can draft me?
    Now I understand why, and there was me thinking they did it to intimidate me off the road……silly me 😂😂😁

    • @taufikabidin412
      @taufikabidin412 3 роки тому +2

      Actually, having something behind you can clean up the air flow and make you more aerodynamic.

    • @Aeronwor
      @Aeronwor 3 роки тому +19

      Also slamming their horns to cheer you on. Truly inspiring to be on the roads with such support.

    • @Eis_
      @Eis_ 3 роки тому

      Make sure you tell them to take their turn though.

    • @DHS_Studio
      @DHS_Studio 3 роки тому

      @@taufikabidin412 also clean up your fart? lol

  • @CyclingSteveL
    @CyclingSteveL 3 роки тому +98

    When a car is sat right behind me I ride faster not because of aerodynamics but because I'm absolutely pooing myself.

  • @stephankyle6460
    @stephankyle6460 3 роки тому +78

    At 300+ ftp while under 80kg ollie is probably stronger than 90%of the "Ollie got dropped" commenters.

    • @jasonmcgrody9472
      @jasonmcgrody9472 3 роки тому +5

      No doubt. I have an FTP of 290 but I'm probably 15kg heavier (taller and overweight)

    • @manuel7102
      @manuel7102 3 роки тому +8

      It's all in good fun

    • @michaelb1761
      @michaelb1761 3 роки тому +7

      I think you're being generous to the commenters.

    • @richcrompton6891
      @richcrompton6891 3 роки тому +4

      I don’t think there is any shame being dropped by ex-pros who put out too many watts to keep the unit solid. If Ollie had been included, I think Si would have been beaten far sooner. Their team persuit skills were highly suspect and were more like 4 individuals than a well drilled squad. Manon should have been brought in to drill them properly. She is the one at GCN with those skills in abundance

    • @marcalvarez4890
      @marcalvarez4890 3 роки тому +1

      Not probably, definitely.

  • @ralvesco
    @ralvesco 3 роки тому +77

    Ollie is a brilliant presenter, congrats!

  • @donerbude5828
    @donerbude5828 3 роки тому +26

    2:42 why are they not wearing helmets

    • @gcntech
      @gcntech  3 роки тому +9

      😂 Good point!

    • @zzhughesd
      @zzhughesd 3 роки тому +1

      @@gcntech Quite shocked in this new world we live in helmet less models,

  • @sanslaq
    @sanslaq 3 роки тому +46

    Brilliant to see all these numbers in a single video!

    • @PsyKeks
      @PsyKeks 3 роки тому

      Too bad the numbers were partly not true 😅 (When cinverting the units on distances, the decimal point shifts. They equate 500cm to 0,5m, which is not correct. Now we can't be sure, what numbers are true.)

    • @miembrosgibran
      @miembrosgibran 3 роки тому

      YEAH I CAN COUNT, THIS IS AMAZING!

    • @Kimberly_Sparkles
      @Kimberly_Sparkles 3 роки тому +1

      @@PsyKeks they added a caption that Ollie mean millimeters

    • @PsyKeks
      @PsyKeks 3 роки тому

      @@Kimberly_Sparkles Ah, okay. Better than nothing, I guess 😅

    • @moreseun
      @moreseun 2 роки тому +1

      @@PsyKeks You are right, I had the same observation as I'm sure others did. However your spelling mistake puts the quality of your contribution in a dim light 😄. Seriously though it's easy to verify the truth since he did reference the study and it's author. I'm going to check it out now for myself 👍

  • @kevinmills3329
    @kevinmills3329 3 роки тому +22

    I would like to see you recreate an entire race using only figurines

  • @davtwill531
    @davtwill531 3 роки тому +23

    Ollie really needs to revise his distances for metres, millimetres and centimetres !!!! How many times did he get it wrong today 👨‍🎓

    • @PsyKeks
      @PsyKeks 3 роки тому +2

      Yeah. I don't really know which ones were true, now. 😅

  • @richardslatcher4572
    @richardslatcher4572 3 роки тому +5

    “500cm or half a meter” is that what you say when you get dropped? I was only 1/2 a meter of the back. Reality 500cm or 5 meters 🤣. Is that another 10 points? 😁

  • @helmiwijaya7
    @helmiwijaya7 3 роки тому +24

    00:40 connor said , "we have to go without him", and then the bike behind is swapped

    • @helmiwijaya7
      @helmiwijaya7 3 роки тому +1

      ah and then Ollie explained it :(

  • @markolazarevic4209
    @markolazarevic4209 3 роки тому +8

    First the caffeine video. Than this one. I like videos with science behind them. Those are great!!

  • @cyclenutter2715
    @cyclenutter2715 3 роки тому +8

    00:08 'Like a sh*t, pushing through the sea'
    Oliver Bridgewood 2021

  • @julesvereijken188
    @julesvereijken188 3 роки тому +7

    Best GCN tech video yet! Cool to see a paper from my university make a surprise appearance!

  • @gefloigle
    @gefloigle 3 роки тому +21

    +10 GCN points! Woohoo!

    • @LarsRR
      @LarsRR 3 роки тому +6

      They didn’t accept mine at Tesco. Does anyone have the GCN support hotline?

    • @gcntech
      @gcntech  3 роки тому +4

      @@LarsRR 😂

  • @Solarsystem50
    @Solarsystem50 3 роки тому +9

    Love the science technical clips. Ollie does a great job explaining just a bout everything. Viewers, you should take notes.

  • @boyobane1590
    @boyobane1590 3 роки тому +2

    I'm pretty sure having a lorry behind you reduces your drag, because I can cruise at 25mph when I'm being chased by a lorry, while I usually cruise between 15-18mph

  • @martinandersson5833
    @martinandersson5833 3 роки тому +8

    Thanks Ollie for making the effort, reading all the studies. Great video. This clip gave me some new information. Much appreciated👍

  • @3dr1ch
    @3dr1ch 3 роки тому +6

    Nice to have a video that’s actually teaching us something, rather than selling us something for a change. 👍

  • @jasonmcgrody9472
    @jasonmcgrody9472 3 роки тому +7

    Mom: Don't play in traffic!
    Me: But Ollie said it's more aero.

  • @dennistay9980
    @dennistay9980 3 роки тому +9

    My heart went out to Ollie when he referenced to when he was dropped 😭

  • @poweredbyplants416
    @poweredbyplants416 3 роки тому +4

    Amazing how many never stick their nose in the wind. We the lone wolves are not afraid.

  • @iberiksoderblom
    @iberiksoderblom 3 роки тому +10

    I was drafted once...
    And ended up in Bosnia, Irak and Afghanistan !

  • @Steve-Riverwood
    @Steve-Riverwood 3 роки тому +1

    So WHY is there in pro cycling not a bigger focus on getting a huge rider, like Conor Dunne to have the GC-contender ride behind?? I've never heard about it ever, that oh, Primoz Roglic has a giant domestique to shelter him from the wind, so he saves much more energy until the finish of a stage. Why why why???

  • @Jimabaz
    @Jimabaz 3 роки тому +4

    Respect to Tim Declercq, the guy who is always in the front of the peleton dragging it along

  • @gaborozorai3714
    @gaborozorai3714 3 роки тому +2

    When the peloton fills a wide road from edge to edge, doing 60 kph in the run-up to a sprint finish, they must be pushing a lot of air. So what is the effect on those riding at the front? I've always wondered how the same lead-out riders can keep those speeds up for several minutes, so it must be significant.

  • @JMcLeodKC711
    @JMcLeodKC711 3 роки тому +7

    Drafting while swimming or running is definitely a thing. In the water, you can ride the wake of a swimmer in front of you but off to the side.

    • @sl077766
      @sl077766 3 роки тому +2

      It works with air too - it's why geese etc fly in a large V formation

  • @The_Cotswold_Engineer
    @The_Cotswold_Engineer 3 роки тому +4

    My favourite is tractor drafting! Always good fun and you get plenty of warning when they are going to do something like brake or turn off as the engine note changes and the whin of the gears changes! Had a couple of amazing tractor rides over the years!

    • @moreseun
      @moreseun 2 роки тому

      Haha Strava segments are getting smashed all over due to tractor drafting!

  • @XFly170
    @XFly170 3 роки тому +1

    Drafting behind even larger vehicles such as a bus or a semi-trailer can not only reduce your drag to pretty much zero but also (if you’re willing to get close enough) provide you with thrust due to the vortices that are shedding behind in the low-pressure zone creating a suction effect. Just ask Evandro Portela… he managed to draft a semi-trailer on a freeway at 124km/h. Look up “bike draft 124km/h”… just remember, don’t blame me if you try it yourself and end up in a hospital.

  • @JoshPeak
    @JoshPeak 3 роки тому +2

    Absolutely love getting into the science and maths of cycling. Could you do an episode that actually shows the maths and formulas for the dominant forces? Go a bit deeper for the nerdiest of us? 🤓

  • @fixieebro
    @fixieebro 3 роки тому +3

    Great vid. Ollie! Thanks for bringing all that info together. And thanks graphics dept. for using fixies in the animation! Appreciate the love... 😉

  • @OndrejMajernik
    @OndrejMajernik 3 роки тому +4

    Hey Olie. I'm not a native speaker but your numbers are broken somehow or I did miss something. Watch from 7:58 to 8:07. Can you clarify if you talk about wheel to wheel distance of rider to rider distance?

    • @MattH6565
      @MattH6565 3 роки тому +1

      He means millimetres, and it's wheel to wheel distance should be "between 150mm and 500mm from your front wheel to their rear wheel"

    • @gcntech
      @gcntech  3 роки тому +3

      What @HattMarris said!

    • @billbetts9354
      @billbetts9354 3 роки тому +1

      That is why I am in the comment section! My mind is wrinkling! 150cm is 60 inches but only 1/2 a meter???? So thanks for this. And Ollie, this is a great video. Thanks.

    • @sardendibs
      @sardendibs 3 роки тому

      @@MattH6565 Which you’d normally refer to as 15 cm and 50 cm. Millimetres are mainly used for the really small and/or detailed stuff (-:

  • @deswhite8268
    @deswhite8268 3 роки тому +2

    white orbea at start then a metallic blue bike - quick respray by Manon?

  • @dilnafathimap1505
    @dilnafathimap1505 Рік тому +1

    Anyone here after reading wind breaker?

  • @deuxroueschamoiscream8626
    @deuxroueschamoiscream8626 3 роки тому +2

    Oli my dude, you look sharp with the glasses man.

  • @tolulopeobe
    @tolulopeobe 3 роки тому +2

    Ollie means millimetres 😏

  • @maxrevell3830
    @maxrevell3830 3 роки тому +2

    The Mavic service Peugeot 504 model is a thing of beauty

  • @sebastiengagnon7510
    @sebastiengagnon7510 3 роки тому +1

    RGT and Zwift should use your video to improve their drafting physics. (Don’t know for other apps).

  • @boudoir00
    @boudoir00 3 роки тому +1

    I just watched three grown up men having fun with a digger and now Olli with play with plastic bikes and cars. What a great start to a rainy Bank Holiday Monday..!

  • @roebbiej
    @roebbiej 3 роки тому +2

    Very informative, thanks Ollie!

  • @ericarnold1739
    @ericarnold1739 3 роки тому +3

    Love when Ollie goes full scientist!

  • @Tom-xn5zj
    @Tom-xn5zj 3 роки тому +1

    NERD ALERT: at the end of the video, I guess you are talking about your c(d)*A Ollie, which is the result of the multiplication of c(d), which actually resembles the coefficient of drag, and your frontal area A. A c(d) of 0.19 would be absolutely unheard of in a cycling context, apart from faired recumbents of course.
    still a great video, thx for all the great content

  • @stuartfreedman6854
    @stuartfreedman6854 3 роки тому +3

    Always alway always be extra cautious when coming up on a stranger. Keep your distance until you see how steady a pace they carry. I learned this the hard way a long time ago.

    • @michaelb1761
      @michaelb1761 3 роки тому

      "How close should you follow?" How much do you trust the rider in front?

  • @Gugner
    @Gugner 3 роки тому

    Excellent facts! Thanks!!! However, I commute 36,5 km to work, and very seldom find some bike riders…and if some seen, I race to catcht them and overtake them😀😀😀😀😅🚴🏻‍♀️🚴🏻‍♀️🚴🏻‍♀️

  • @jimhansen5395
    @jimhansen5395 3 роки тому

    Um...fish school for “Safety in Numbers”, not for “Aerodynamic Advantage”. I get your point, but the analogy doesn’t swim...

  • @achilleslmoreaux3287
    @achilleslmoreaux3287 3 роки тому +1

    Hi guys. I'm from Brazil. Where can I buy these little miniature cyclists?

  • @paolocastellano343
    @paolocastellano343 3 роки тому

    Drag is proportional to the SQUARE of the speed, acceleration is proportional to the cube of the speed...

  • @DevilErnest
    @DevilErnest 2 роки тому

    Why not a GCN experiment at 40km/h, with everyone riding a distance individually, record their power numbers, and then doing the same run but in a GCN Chain and find out power numbers for 2nd, 3rd, 4th...position (1st position power numbers will also be interesting to see) and compare them with the solo run. It will be interesting to see how different order of biger/smaller riders affect the drafting effect too.

  • @charlesjungclaus
    @charlesjungclaus 3 роки тому

    I'd really like to know about extra danger of Covid-19 due to drafting. I'd love to join a group, but I'd like reassurance re: riders' breath/droplets in front of me that I'd be riding through for upwards of x minutes.

  • @josepha-rt7118
    @josepha-rt7118 3 роки тому

    One time I was riding home in serious traffic..... I was caught in the middle of the lanes and I instantly felt drag reduce🇰🇪🇰🇪 (pangani to muthaiga descent)

  • @19dalton81
    @19dalton81 3 місяці тому

    Bike draft 124km/h youtube search. No helmet, etc.

  • @BarryJHoffman
    @BarryJHoffman 3 роки тому

    Was this video made just to have an excuse to play with those adorable little cycler toys? Just kidding. Phenomenal video integrating cycling, math and science. Thank you!

  • @billkallas1762
    @billkallas1762 2 роки тому

    If you don't know the people that you are riding with, it's better to leave a little extra room. If you know that THEY know what they are doing, you can close the gap to around 10 cm.

  • @allanrodzinski5850
    @allanrodzinski5850 3 роки тому

    Here is what I need - a wind shield...could be two varieties, road bars, road bars w/ tri bars. It does not need to be overly large like fairings of old, just a small bullet shaped transparent canopy (in orange, lime green like a Mountain Dew bottle, and blue) a rider could use to slip that air around the body much better. Of course its not UCI approved...I'm just riding to the store.

  • @General_Crock
    @General_Crock 3 роки тому

    Curious, what's your gap on training roads folks? I aim for 10-12 inches or so (300 Ollie cm's.)

  • @stevedawson2390
    @stevedawson2390 3 роки тому +1

    Great to see all of the different situations on the road taken into account. Fantastic video very informative

  • @markusmencke8059
    @markusmencke8059 3 роки тому +2

    2 min mark: resistance goes up velocity squared, not cubed.

    • @OFFSHOREDOUG
      @OFFSHOREDOUG 3 роки тому

      Thank god it’s wasn’t just me.

    • @nayjames123
      @nayjames123 3 роки тому +2

      Maybe he was referring to the power needed to overcome the aerodynamic drag, which is proportional to velocity cubed?

    • @jasonmcgrody9472
      @jasonmcgrody9472 3 роки тому

      @@nayjames123 I assumed Ollie meant this

  • @jmh70
    @jmh70 3 роки тому

    How much do you save by holding on to a car whilst being pulled up a climb, like the Poggio for instance? asking for a French friend.

  • @pauldarling330
    @pauldarling330 3 роки тому

    Yeah, cancellera had some other worldly accelerations. And unexplained bike changes, too. Great example ollie.

  • @davidburgess741
    @davidburgess741 3 роки тому

    Solo I really like traffic assisted aero. I can get a 5mph boost from a large truck on a large shouldered highway. At a stoplight the truck gathers a large entourage behind it prolonging the effect especially when heavily laden. A crosswind magnifies the effect. Vary the position on the shoulder toward the edge for traffic going the other way. Never push your luck in the traffic area though. Connor is much like a tandem team. He has The power of 2 riders but not twice the frontal area. Reynolds number is also lower than average ,similar to a ship with a longer waterline. Finally the weight and aero drag of the bike are minuscule proportionally to a smaller rider. He must have been a great domestique!

  • @c.s.4273
    @c.s.4273 Рік тому

    Today I rode my fat bike behind a fast gravel biker with narrow tires. He was terribly upset and didn't want me in his slipstream at all. So the Swabians are really stingy if they don't even want to give you a slipstream! Cursed like a sparrow! 😮
    It was probably the frustration of not being faster than me on a fat bike. 😅

  • @pleroma5924
    @pleroma5924 2 роки тому

    Does the SWIFT system account for drafting. Or are the engineers working on this