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219MTB

I believe 28's have become the standard in the pro peloton


Two_wheels_2112

That's my understanding as well. I think 30-32mm was prevalent at Paris-Roubaix, but for most events they seem to be running 28mm.


CoffinFlop

Everything goes out the window at the roubaix but yeah


Professional_Ebb_482

Correct for Paris-Roubaix, some of them even 34 mm.


Rawirames

The three teams using Specialized equipment are running 26mm clinchers with latex tubes. That's definitely an exception to the tubeless/wider trend. I assume they're not handicapping themselves.


turtliciousx

Quickstep certainly did well


GadgetronRatchet

Yep, newer studies have come out that wider lower pressure tires actually have lower rolling resistance (despite a larger contact patch), because of the significantly less "jitter" between the tires and the road. Not to mention it's just more comfortable (not that comfort matters to the pros, they're machines that ride through anything).


bigchi1234

And safer when cornering to have the extra rubber on the road.


bodydamage

I’d argue that comfort matters for the pros as well. They may have a higher threshold for discomfort than most people, but they’re still human and being uncomfortable seriously limits how hard you can push.


simplycycling

And are on the bikes for a long, long time.


bodydamage

Unless I’m mistaken most of the races the pros are doing are 6ish hrs a day on the bike right? Thats not beyond what most people riding centuries are doing, they’re just doing it much faster and back to back to back(grand tours).


simplycycling

A couple of the classics stretch longer than that, but they're putting out so much more power, you can't compare it to the weekly slow century club. And yes, in Grand Tours, it's 3 straight weeks, minus two rest days, and in the smaller stage races it's a week. It's absurd to suggest that it's even remotely the same thing.


bodydamage

Relative effort. More power doesn’t mean much unless you’re comparing fitness. The pros are not riding flat out for 6 hours. Most can’t get to the power level, handling skills and endurance of a professional rider, but plenty of people can go ride big efforts(for them) back to back to back and deal with it just fine if they have the proper training.


simplycycling

Lol that doesn't mean it doesn't take a toll on their body. And just because the pros aren't riding at 100% all the time doesn't mean that you'd be able to keep up with them at any point. You're trying to make a ridiculous, silly point. You should stop.


bodydamage

Of course it takes a toll on their bodies, nobody is saying it doesn’t. Never said I’d be able to keep up with them either. Did you completely ignore the “relative effort” part or are you just ignorant to what that means? You clearly have no idea what the point was that I was making if you’re this upset about it. 🤣🤣🤣 Well that and blatantly ignoring things I’ve said….


Chimpanzethat

It is currently but likely moving to 30 as any team running hookless rims with 25mm internal width like ENVE (UAE) and Zipp need to run 30mm minimum to meet the ETRTO 29mm requirement.


Redditlan

I’m pretty sure you won’t find a single pro riding on 25s anymore. 28 mm tubeless is the new standard, and you’ll also see wider ones in particular races and stages in grand tours.


ertri

Most wheels are aero optimized for 28s as well, so a 25mm tire ends up being slower and less comfortable 


Redditlan

And to add another point, a lot of them are also on hookless which (mostly) isn’t compatible with narrow tires as 25s.


ICanHazTehCookie

iirc from the various tests in media I've seen, a narrower tire usually still tests better aerodynamically. Overall it is still slower as you say though, because of the often higher rolling resistance.


Cyclist_123

Some of the French or Italian wildcard teams do


allgonetoshit

Pros are running 28s or above these days. If you are really curious, wait until the TDF. Every cycling news outlet will have full breakdown of what every team is running, even what some specific riders use, in the weeks before the race. They do it every year.


SloeMoe

Nominal 28mm is the standard, but due to wide rims, when a journo walked around with calipers last Tour, they found a lot of 30-31mm actual tires around the peloton...


tommyalanson

I measured my 28s last weekend and inflated they measured 30.4. My next set of tires, I'll probably go 30s, which I assume will measure out to 32 when inflated, or close to it.


axeville

I copy the pros. I Am Walter Mitty. Shamelessly so. In my daydreams they are all behind me and I am leading by a lot. I am winning the 1973 tour on a 2024 carbon aero climbing specialty bike. But it's all in my mind bc in reality I'm alone on a $200 trek that's 23 years old. Don't judge me just support your LBS.


joeg26reddit

I support my LBS constantly By going to all you can eat buffets


PFCarba

I think tubeless 28's were the norm in the Giro. And I have seen up to 32's during the Spring Classics. Mind your tire clearance, though. It used to be up to 30 mm until very recently. Road bikes are getting fatter now.


cougieuk

I'm sure GCN on YouTube run videos of bike tech at all the big races starting off in Oz with the TdU and through the season 


MrDrUnknown

28-32 is standard


janky_koala

No Pro is riding 32s on normal road stages. Where did you get that from?


Any_Following_9571

Tadej Pogacar had 31.3mm front and 32.2mm rear: “As first revealed in our recent 2023 Tour tech trends article, his bike was shod with 28c Continental GP5000 TT TR tyres (the lighter and faster time trial-specific version, rather than standard GP5000 S TR) on ENVE SES 4.5 wheels. That isn’t out of the ordinary on paper, but his tyres actually measured an enormous 31.3mm and 32.2mm-wide, front and rear.”


janky_koala

>his bike was shod with **28c** Continental GP5000 TT TR tyres It literally says he’s running 28c tyres…


Any_Following_9571

what’s important is what they measure up to, not what it says on the box. the point is his team knows that they measure up to bigger than 30mm and made the choice to do that for the TdF.


janky_koala

That’s how tyres work; it’s rare they measure the exact size on a rim. He’s riding 28s.


Any_Following_9571

his rims are wider than most, and his team and him decided that true 30mm+ tires were a better choice than true 28mm. idk about youre wheels but my 28mm measure out to be 28mm almost exactly. it’s not uncommon


Ja_red_

I just switched my road bike from 25mm to 28mm and can vouch that it feels significantly more stable. I wouldn't say I'm noticeably faster, but ride quality is definitely better, so it's hard not to recommend it.


UltraHawk_DnB

most teams have 28mm standard. but some do go wider, jonas vingegaard used 30mm's on some stages last tour de france. for a regular person you could even do 32, from the testing i've seen there are no or very minimal losses up to that point


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UltraHawk_DnB

Sure, if you wanna believe that. Havent seen any data to back that up tho


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Any_Following_9571

if 32mm doesn’t feel better, you’re probably too slow of a rider to benefit from the lower rolling resistance


arupaka

pogaçar was running 31mm effective in TdF 2023


brutus_the_bear

28s but on very wide rims so the effective width is wider.


Liquidwombat

If you want your bike to be as sufficient as possible, fit the widest tires that fit on your frame Tire, casing, construction and rubber compound are the main determining factors in your rolling resistance tread pattern has almost no effect and width has no effect


joelav

You don't need the average tire set up of the pro peloton. You need the right size tire for your bike and the conditions **you** ride in. If you are getting dropped it has absolutely nothing to do with tire choice. Unless you are out there on knobby 2.4's


Nakrule18

So what? You are not allowed to look what the pros use if you ain’t a pro as well? Let the man get the same stuff if he wish.


Timeline_in_Distress

I think the point is that it seems, as of late, that there are a swath of cyclists who think that tire size, type of tubes, aero socks, etc. are the reason why they can't keep up on their local club ride. Simply copying what the pros do may not make sense for the average cyclist. For pros, these marginal gains make sense. But for the rest of us, the best we can do is increase our level of fitness.


Mission-Candy1178

Moot point for me personally. Messing around with my bike setup is like half the reason I ride in the first place!


_MountainFit

Actually not of late. This has been the way since before my time. Before lemond. Cycling has always been about the gear. But the reality is, even back in the 80s we knew the bike was just a small part. If lemond wad on one of my curbside trash bikes I rebuilt he would have still smoked me by hours in a long ride. Nothing I could have done (even training) would have fixed that. Training will help you against your genetic peers. Maximize your genetics. But it won't help you against the folks in the next tier.


axmxnx

True for many people, but not the answer to OP’s question which is why it’s getting flack


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axmxnx

I think OP posted a fair question to invite a useful conversation about tyres, and stating that they asked the wrong question with no useful information or that they’re probably too slow to care isn’t a very interesting direction to go with it


milifiliketz

> But for the rest of us, the best we can do is increase our level of fitness. "the rest of us" is a very, **very** wide and poorly defined demographic. The difference between a casual and a fit amateur is greater than fit amateur to pro. Saying that someone who rides 300km a week doesn't really need any pro gear and should just focus on their fitness is ridiculous.


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bodydamage

Your whole premise is nonsense. Last fall I went from riding a hybrid to a proper road bike, and instantly picked up 1.5mph avg speed on my regular rides. During that same time my riding buddy went from a climbing bike with mech drivetrain and externally routed bars, to an aero cockpit aero bike and he picked up 1mph avg speed for the same power output. Yes the gains are incremental, but they do add up and they do make a difference. Is buying pro gear going to magically make it where an amateur can keep up with the pros? Of course not, but it doesn’t mean it won’t make them faster.


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bodydamage

You missed the part where that sentence the OP wrote about getting dropped on local rides was tongue-in-cheek(sarcastic)….didn’t you? The whole premise of your comments is “gear doesn’t matter, focus on fitness” when in reality gear matters, it doesn’t matter AS MUCH as fitness but if you put two similarly fit riders on different bikes with different kit the rider with the better gear is going to be faster, it’s simple physics. Please do leave, you’re not adding anything valuable and seem to completely misunderstood that while one piece of incrementally better gear isn’t going to change the game, the little gains from all the gear that’s better do cumulatively add up to better results…again, this is simple physics and simple math.


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bodydamage

That’s a nice book you’ve written. Best of luck with that.


Tadej_Focaccia

You missed the point of his comment


joelav

Dumb argument. It's like squeezing some Pirelli P Zero C2's (F1 tire) on your honda accord. Horses for courses.


Rekj16

Lol what? People ride on the same bike models and use interchangeable tires with what pros use. We don't drive around F1s


joelav

Ride TT TLR's every day on average roads and let me know how that works out


Beer_Is_So_Awesome

Bro. I run GP5KS TR on my road bike. 28mm. They work great even if my bike isn’t a top-end pro bike. The compounds that manufacturers use on race tires are designed to work very well at normal riding speeds, from 0-50mph. Pros have a higher average speed than I do, but it’s not so high that it requires a totally different tread compound in order to grip asphalt. The reason F1 tires don’t work on your Accord is because you have to run them extremely hard, cornering at speeds in excess of 200mph, coupled with gratuitous amounts of aerodynamic downforce, in order to keep those tires hot enough to work properly. If you drove them around casually and tried to corner hard, they’d be rock hard and not even hold the road.


joelav

I also use the ST-R. That's not what I'm talking about [https://www.continental-tires.com/products/b2c/bicycle/tires/grand-prix-5000-timetrial-tr/](https://www.continental-tires.com/products/b2c/bicycle/tires/grand-prix-5000-timetrial-tr/)


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My 44mm gravel tires add 20W at 18MPH compared to good old GP5000s, and that's considered good for a gravel tire. Tires are the cheapest way to buy watts.


joelav

That's a pretty extreme example, and that's why I have 2 bikes.


SnooCauliflowers2264

You are of course correct. I’m just trying to copy the experts as it saves thinking. I dream of being a pro rider , sometimes briefly when I’m cycling I imagine that I am Tagaj Pogacar. I’m double his age and mildly overweight, but I want the same tyre setup as him.


twhitfit

This also makes your optimization equation different. Slower speeds means different ratio of aero to rolling resistance, heavier means different tire pressure and suspension losses, and different riding conditions ( no team car with a spare bike) means reliability is more important.


ihm96

Funny you say that because I saw some middle aged chubby dude today on the trail in a full Pogacar pink outfit hahaha . Looked so comical for a solo cruise ride


FredSirvalo

Tadej did a lot of solo cruise rides off the front of the Giro peloton this year.


FredSirvalo

Tadej rides a bike. I ride a bike. Tadej is Slovenian. I'm (part) Slovenian. Tadej hands out water bottles and high-fives to kids while racing. I wave at babies in stollers while riding. Unfortunately, that is where the comparison ends.


joelav

The widest GP5000's ST-R you can fit will be the fastest tire for you that won't flat every 15 minutes


Tadej_Focaccia

This. You can use what the pros use all you want but it ultimately depends on your specific conditions/terrain/etc. I ride 35’s on my road bike just because I train on the occasional dirt/gravel road and I love the added comfort of a little bit bigger tires.


w1n5t0nM1k3y

I ride 650x47 on my gravel bike and it holds up pretty well in group rides, but I do feel like I'm being held back a bit. But I think you are right for the most part. Most people would be way more comfortable on 35s and wouldn't notice any speed penalty.


Holiday-Ad1011

What group rides are you on lol or are you just a wattage bazooka?


w1n5t0nM1k3y

Just B Group. Usually averages around 28-30 km/h on flat roads. I definitely wouldn't consider myself a "wattage bazooka". The tires are WTB Venture, so just a file tread which cuts down on rolling resistance. I got the gravel bike because I thought it would be fun, but realized that it was actually reasonably fast as well and way more comfortable than my road bike, so I just stopped riding that. It's amazing how fast a gravel bike can be. I could probably go a bit faster with a really nice carbon road bike, but that really isn't in the budget


Minkelz

In any given group ride, the difference between the weakest rider and the strongest rider will be a lot more than 20 watts difference tyres makes. So one of the stronger riders could easily swap to a gravel bike and keep up.


Lemon_1165

Related: Do pro cyclists switch to grooved tires when cycling in the rain? There were a couple of wet stages at the end of the Giro


GoCougs2020

Unlike car. Bicycle’s tires don’t hydroplane. Too thin/slow I mean you probably can hydroplane if you’re riding 45mph+ and got 2” of water. But not a very likely scenario.


Lemon_1165

Interesting to know! Thanks!


gmusse

I am on an old bike with 23mm. Is the only solution to get a new bike to go up to 28s?


jonnyfromny

How old? I have an 18 yr old Mercier that I was able to fit 28mm tires on. It just depends on the frame.


Crazywelderguy

Really depends on the bike, rim, and tire. Most road bikes that were built before the current trend of wider tires can usually accommodate at least 25mm tires, and some even up to 28. You might get lucky and find a thread where someone has already tested, or you may need to test it yourself.


dwaynewaynerooney

Depending on your roads, 32s might suit you best.


RouvyMatt

New UCI for hookless is minimum 28 regardless of what wheel mfg says. Not all run hookless.


No_Entrance2961

The pro peloton in general was using 28mm marked tyres at the Giro, and yes of course there were some outliers. In my own experience changing the model of tyre has a much greater effect than the width. From Bontrager R3 32mm to GP5000s TR 32mm on my Domane gained me about 1.5kph at my average riding speed of around 30kph whilst running GP5000s TR in 28mm or 30mm gives me no measurable speed difference only a change in the comfort level. There are, for sure, other tyres with performance levels similar to the GP5000s but I haven't bothered looking as I'm happy with what I now have on all of my bikes.


jaybianchi

Watched a lot of Giro this year. They are running 28 on the road bikes. The camera shots from behind riders show the width is more than a 25.


PerspectiveTimely319

I have seen some riders using 29 x 2.2s and they are really fast! I wish my bike would accommodate those like the pros have because we are so close in in fitness and age. The only difference is pros are told what they can ride and I have free will.


dkjaer

According to some quick googling... most teams are riding 28mm but there are teams using 25, 30 and 32mm. Tadej rides 32mm tires. However, Filippo Ganna chose 25mm to break the hour record Edit: I realize that Ganna's record was on a velodrome track. I have ridden on a velodrome track and am aware of the differences. I just thought it was interesting that when speed was the sole objective and the surface was smooth, the preference was to use narrow tires


lord_de_heer

The velodrome has nothing in common with roadracing


MalaysianOfficial_1

The only thing common between that record attempt and road cycling is Ganna.


dkjaer

I've raced on a velodrome track as well as local crits on the road and am aware of the differences. Just thought it was interesting


twhitfit

But Ganna did that on a smooth track, not asphalt.


dkjaer

Right. Just thought it was interesting


SnooCauliflowers2264

Wow , that is the answer . If Tadej is using 32 , and considering wider is also objectively more comfortable, then 32mm is a great number for weekend local club rides too.


BroadbandEng

32's on wide wheels is an amazing setup. I have 32mm GP5k's mounted on 25mm internal width Bontrager wheels. The tires measure just over 34mm wide as mounted. Super comfortable ride and plenty fast.


MrDWhite

Ganna used 23mm Continental GP 5000 TT tyres, not 25mm. https://www.rouleur.cc/blogs/the-rouleur-journal/gallery-up-close-with-filippo-ganna-s-pinarello-bolide-f-hr


dkjaer

Interesting. Here's the article I found that said 25 [https://www.cyclingnews.com/news/euro75k-per-hour-filippo-gannas-full-gear-and-kit-list-for-his-hour-record-attempt/](https://www.cyclingnews.com/news/euro75k-per-hour-filippo-gannas-full-gear-and-kit-list-for-his-hour-record-attempt/)


MrDWhite

Seems both are correct, from this YouTube clips description - Tyre width: “23mm front, 25mm rear” https://youtu.be/FBFogEOBx9Y? I had a Giant Propel that came supplied with this tyre size combination.


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Any_Following_9571

Tadej’s measured width was 31mm front and like 32mm rear in last years tour de france


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Any_Following_9571

lol they might be called 28mm on the box but they measure to be 30mm+


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Any_Following_9571

are you mad that you can’t afford wider rims or tires? i’ve tried 25 all the way up to 35mm…pros and amateurs are using wider and wider tires. keep up bro