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Are aero wheels worth it - answering the questions

Are aero wheels good for climbing?

Ultimately, while weight trumps aerodynamics when climbing, if you're riding on largely flat roads, rolling terrain or even a mountainous course with long valley roads, aerodynamics may well be more important over the course of the ride.30 2017 .





You are looking for a new set of balance bikes and while there are many different types you are probably wondering if I should buy deep section arrow wheels or lightweight climbing bikes, but while the depths look really cool, people often just wonder, whether they are okay with the ascent? I was wondering if deep section wheels can climb so we'll find out in this article if deep section wheelscan can climb on it sorry buddy I can only throw in, we know deep wheelscan cry I mean i showed you everything on the angler oh yeah to be fair did you do it? but you used it as an excuse not to go faster yeah that's right but we want to find out if there is a big difference and how much that difference is so we got to GCN's test mountain, yes at 261 meters one point nine and a mile long with an average incline of a whopping 11% it's pretty steep, sir, so the testicles Ali will do two runs, one on the flat wheels, one on the deep tread rims when it takes off, when it takes there is competition , there's only medicine so I'll win whatever I do what you talk about, that's a trash test, what we're actually going to do, it's boot up twice, I ride up in the depths and then whatever strength I do wins in the depths I do this power on the flat climbing wheels and then we'll see how big the time difference is. I'll keep the performance the same with the Quadyeah we'll find out which one wins a bit more scientifically this way, yes for our lightweight climbing bikes we went for a really nice pair of Zip 202NSW, these are supposed to be the fastest accelerating carbon clincher zippers of all time, and for good reason - they only weigh 1375 grams pair, but are still 33 millimeters deep, so we have indeed become very aerodynamic for our deep section wheels, Hervision Metron 80 these are 80 millimeters deep As the name suggests, their carbon clinches and zippers and they have arrow blade spokes they are hand built they weigh 1770 grams, so they are about 400 grams heavier than our lightweight climbing pair. It's interesting to see if this makes a difference and if the extra arrow offset makes it man why don't you do that too I can't climb Ollie very well so I think you're probably best suited for this, that's a lie Anyway you will tie me up yeah give me the beat GCN beeps beep beep beepnow The goal here is not for me to whip myself and we will try to repeat the force I do this time when I hit the lighter ones Wheels, but even at these speeds that are slow? Aerodynamics make a difference, so I also remember how I ride the climb and where I'm getting out, the subtle parts I have to get out of the phone this time and then I'll repeat that too, so I'm going to get out of the steeper passage up here be and start on this bitgo deep rims he said it is not a race I will whatever I do this time I have to do it again these the finish line both oh good run that how did that feel it is right yes so run an average done 310 watts and did the climb in nine minutes and 12 seconds, they felt good, you know they don't, I don't feel like a downside so we bring you, you get the zippers Oh , that's my cue, it's good, I see that and we I'll try to repeat that again oh you're sure you don't want melons no no you finally know how you feel for this one MRI oh me will do it anyway give me the beat yeah beep beep beepbeep oh that will hurt a second time right away than once i made the star and accelerated with the lighter edge we definitely feel let's see it i mean i don't think it's in much but you can feel it strangely as we are now headed for the grueling super steep section so uninteresting how you feel, oh should that? Be where the difference is greatest, because that's where you're going too slowly.

Kualidigging dig okay I'm trying to do the same power as a boat, all right, looking fine even though we got the results right on the wahoo so just a quick recap first 310 watts i repeated that id 310 w i am pretty proud of me again, yes that's a good achievement, but what we really want to know is the time, so in the first nine minutes 12 for the lows, yes, right, nine minutes 600, it's very list, me mean, it's almost in the frame, I would say experimental? Mistake, but I'm pretty confident that's about right, yeah yeah, but one thing is definitely, when you're accelerating, when you're accelerating off the line, I think one of those seconds was on that part when I was watching formed the stand at the start, yes, they are not faster, you just pass, you can? Feelit and on the really steep section because I had the swing both times. I don't think there was much in it, but I think if I suddenly lost my momentum and had to accelerate again at some point, I would probably soon have a bit of time with the flatter ones, the whole thing for me is the deep winwell, they look best, but I mean, unless you only do it in a pure hill climb event where every second counts, if you climb like this you will more than do it downhill and on the flap with the deets because aerodynamics are now easy is far superior. The big question we ask ourselves is why don't all pros use such deep profiles and there's a reason that many pros find them not only quite stressful but catch the wind a bit easier when you're in crosswinds, but even if you are trying to get food out of your pocket you have to take your hands off the bars which means these are open to be caught in the wind and you don't end up in a hedge, no , okay i guess the answer is to use a medium depth wheel, something like a40 or 50 but we are either you know yeah most of the time but i mean come on they look like i mean They sound fantastic - you know that wollwoll dubstep sounded good, did you still have a good good day today I guess it's over in the pub, good, you eckon yes, I'll go with these, well, I'll go with you go man you will go up my pit yeah come back because I'm getting cold

Should I upgrade to Aero wheels?

Wheels contribute a great deal to a bike's overall aerodynamics. Upgrading to more aerodynamic wheels will help you save precious energy and ride faster. Generally, this consideration is only important for road or time trial riders.

How much time do aero wheels save?



The time savings for good aero wheels are significant, according to Barry's research on the SystemSix and its new Knot64 aero wheels. Even on an aero road bike, the addition of aero wheels saved 48 seconds over a 40K TT at 300 watts compared to a typical 30mm-depth alloy training wheel set.19 . 2020 .

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Aerodynamics man, depending on who you speak to, could be the be-all and end-all, the most important factor affecting your cycling I mean, they make sure that you can't even finish the Gran Fondo that you are targeting on the same day It obviously doesn't matter that much now, let alone a personal best, but it undeniably has a huge impact on how fast and how easily you can go so we thought we'd see how much difference it made for your speed, if we first change three common things on our racing bikes and completely free of charge what happens when you change your body position and secondly and quite cheaply what happens to your speed when you make your helmet and your clothes more aero yes and then finally with a little more investment what about your wheels what is the difference between flat and deep wheel shaft to find out we are z ur gcntest track come, our own private road for the runway, yes and then we'll go to three preset wattages. I used a rotor twin pat parameter in my case and in Matt's case a power at maximum and then we just compare the speeds and doing something scientific how do you know what i said? Mistake because we don't have glasses let's click anyway let's do some pseudoscience your body position first there now that's something biomechanics allows we can all lower our elbows slow our back drop a head and tuck our shoulders so how do we want to test whether we have what we have good? For a distance that is flat and long enough to travel at a constant speed, we will drive at three different powers 200 watts 300 watts 0 400 watts and when we are at that constant speed we take an average over a short distance to order get the exact speed that wattage is going to test us number two is clothing now we have gone for option number one which is the full juice and pro kit with arrow helmet option number two is a ven ted caskhelmet and let's face it, one Uppers Probably Several Sizes Too Big, Now Finally Wheels This is the quick and easy way to make your bike more aero, but it requires more investment so what's your return on investment to find out we have a set of Bontrager- Use Paradigm Elite? Wheels really nice light to have alloy wheels and a pair of new zippers at 4:04 NSW wheels not the deepest they make but still pretty rude I think you will agree with me that they should be really good I'm really into it interested to see how this goes, you really scratch that difference on the road quite remarkable at 200 watts there was a three kilometers per hour difference between a non-aerodynamic and an anaerodynamic position and at 300 that difference rose to up to four kilometers per hour the difference between simply exchanging the jersey and the helmet was then quite remarkable kilometers per hour at almost 200 watts and then again a few hundred at 300, the difference increased by just under 2 kilometers per hour, what a small change pretty remarkable i think and then the results for the wheels then the difference at 200 was zero four k ilometer per hour a stranger wattsit was zero six kilometers per hour and then at 400 watts it was one kilometer per hour, so let's go out the openroad as those three aerodynamic changes stack up actually well unsurprisingly or maybe not when you consider it free, it is actually your body position that has the greatest effect, believe it or not, but sitting between 70 and 80 percent of the aerodynamic resistance of you and your bike when you are driving through the street air yeah, so that You can make significant improvements, regardless of what speed you go in the first place, simply by changing your body position. The next biggest improvement was clothing and helmets, followed by wheels, which really seems a bit paradoxical given the extra money associated with a high-performance set of wheels - it's actually true, when you think about it, maybe it's the farther the pursuit of aerodynamics The more money it brings, the less it will cost you to make fewer and fewer improvements, so it's entirely up to you whether you think it's worth it or not, so you should think about it now.

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Of course, before we leave this article, we recognize the limits of our test protocol, but we were both stunned. I think it's fair to say how easy it was to see the differences on the open road, all we needed were precise parameters a little bit Tom my hat is now actually for another article on aerodynamics but this time it's the air limits the difference in climbing, how about just clicking up here, yes, or to see in winter where you really get accurate aerodynamic data and just click down there to see behind the scenes at Envy's top secret testing that is a good article indeed and to subscribe to GCN as always, click on theglobe and don't forget s bunny and like this article too

Are deep section wheels worth it?



Generally, deep-section wheels offer significant aero drag benefits over traditional shallow rims so that a rider can go faster for the same effort, or the same speed for less effort, says Chris Yu, Specialized's head of aero and tech. >>> Deeper wheels are also heavier than shallower wheels.

These are the brand new wheels from Shimano. They will be available a little later this year. And we're going to use them for a little experiment.

Well, this is the C40 and this is the C60. and both are completely new to Shimano's wheel range. This C40 was designed as an all-round impeller.



Super light, only 1,355 g, but still aerodynamic. Shimano actually tells us it's two watts faster than their previous aerodynamic wheel, the C50. And they achieved that partly through a new rim profile, and partly, they say, because they made it much, much wider so that it fits much better with modern wider tires, so actually 28 millimeters wide, even so wide that they have produced their own slimline brake pads for this.

But this one, the C60, is the aerodynamic impeller through and through. If this one creates two watts less resistance than the C50, this one creates 16 watts less resistance, so it's significantly faster, although Shimano didn't tell us exactly how to do it, but I tested these bikes, but what I want to know and have always known wanted to just see how much difference there is in climbing between flat wheels and deeper wheels. We're told this is a climbing bike, but it's only 125g more and creates 14 watts less drag at higher speeds.

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So we're going to find out exactly what happens when we go head-to-head in the two races. Our choice today is the Coll de Rates. which is in Alicante in Spain.

It's 6.5 kilometers long and has an average incline of 5.6% so it should be reasonably fast.

Any guesses? Run number one, it's the C40s. (intoxicating music) (exhaling) Are you ready? Run number two, C60s. Okay. (Stimulating music) (exhale) With two iterations of the Coll de Rate now it's time for some results.

I haven't seen these yet so I just hit the lap function. Good, let's go. So the C40s were 16 minutes, 52 seconds and the C60s, 16 minutes and 55 seconds, so actually two and a half seconds in between.

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I can't quite believe it. It's incredible. An average power from each was 326 watts.

Now that's not a guarantee that those watts were completely evenly distributed, so there might be a small discrepancy in there, but what is scary is that they are almost exactly the same rate on this rise. I suppose you could extrapolate that and say that if the climb is steeper than this which is 5.5%, the C40s keep getting faster and faster compared to these, but you can bet your lower dollar on these C60s will be on the other side much faster now.

What is important to you is ultimately a decision for you. But I can't believe that. It's almost a little strange, isn't it? Right, well, if you enjoyed this little glimpse into the science, then subscribe to GCN first.

We regularly try to solve some of your burning questions about cycling and cycling gear with the help of helpful brands like Shimano who give us great stuff, and then if you have a subscription here in the world why not check out a few others GCN Does Science articles where we first test how much weight the bike has on the climbing speed, put on thick backpacks to find out how much body weight affects the climbing speed, and that's just down there.

Do aero wheels feel different?

The faster you go (the more powerful you are) the more the difference. If you go slower than maybe 15 or so the difference is pretty much gone. The difference between shallow aero and medium aero wheels is actually less because my box section wheels are the opposite of aero. This has been my experience.

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How deep should your wheels be?

Rim depth is broadly speaking a trade off between weight and flat speed. Shallow 25 40mm Can be lighter, great for hill climbing and accelerating. Mid depth 40 60mm Is often the best all-round option relatively light for climbing, whilst still fast on the flat best of both worlds.

At what speed do aero wheels work?

At average speeds >20mph, aero wheels should make a measurable speed difference, but don't expect much over 0.5mph or you'll set yourself up for potential disappointment.3 . 2018 .

Should I upgrade my road bike wheels?

Upgrading your wheels will significantly improve the performance of most bikes, and if you started with an entry level bike it is a great place to start your upgrades.

How much faster are deep rim wheels?

'Now let's say that the deep section aerodynamic wheels give you a 10% increase in speed over shallower rims on the flat but, due to their extra weight, a similar decrease in speed on the uphill.

Are 60mm wheels too deep?

How Deep? Rim depth is broadly speaking a trade off between weight and flat speed. Shallow 25 40mm Can be lighter, great for hill climbing and accelerating. Mid depth 40 60mm Is often the best all-round option relatively light for climbing, whilst still fast on the flat best of both worlds.

Which is better Aero Rims or lightweight rims?

On the Ironman Florida course, which featured just 300m of climbing over 180km, the heavier wheels came in at 5h 21m 44s. The lighter wheels only saved 2s, while the aeros came in at 5h 14m 10s – a 7m 34s saving. Even on the 13.2km Alpe d’Huez climb, the lightweight wheels bettered the ultimate aero combo by just 23s.

Why are deep aero wheels good for bikes?

That mid-depth front and the highly developed shape means the Jets are super stable and the machined, anodised brake track produces stopping power to rival disc brakes. They’re tubeless-ready, too, and they look particularly cool in a bike, so this is a very complete wheelset.

How big are the Michelin deep aero wheels?

On the road it feels like they come alive above 25mph, greedily holding onto inertia, and that’s borne out in the tunnel where they ranked third overall on combined drag, just 1W behind the HEDs. The 25c Michelins inflate to 26mm for an ideal alignment.

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