Cobbled Classics in Cycling: Flanders, Roubaix and More
The cobbled Classics explained for British readers, from the calendar and Paris-Roubaix star ratings to tyres, weather and the UK riders who won on the stones.
By CricketTaken EditorialPublished Road Racing Explained24 min read
- Season
- Late February to mid-April
- Five-star Roubaix sectors
- 3
- Trouée d'Arenberg
- 2.3 km
- Record Paris-Roubaix wins, to 2026
- 4
Ghent, 28 February 2015, the first Saturday of the Belgian season. Four riders were clear in the closing kilometres of Omloop Het Nieuwsblad. Three of them, Tom Boonen included, wore the colours of Etixx-Quick-Step, the strongest cobbled team in the sport. The fourth was Ian Stannard of Team Sky, born in Essex, alone and outnumbered. He chased down their attacks, made one of his own, and beat Niki Terpstra in the sprint. Few British riders have had a better day on Flemish roads.
That race is the first of the cobbled Classics: the one-day races run over the stone roads of Flanders and northern France between late February and mid-April. They build in a fixed order, from Omloop Het Nieuwsblad on the opening weekend through a month of Belgian races to the two that matter most, the Tour of Flanders and, a week later, Paris-Roubaix. All of them are decided by the same things. The surface, the weather and the fight to be at the front when the road narrows.
The cobbled Classics calendar in order
Belgians call the first two days Openingsweekend, and the week between the last two races Holy Week. In between, the schedule has settled into a pattern that barely changes from one year to the next.
| Race | Slot in the spring | Character |
|---|---|---|
| Omloop Het Nieuwsblad | Opening Saturday, late February or 1 March | A shorter run over the Tour of Flanders hills |
| Kuurne-Brussels-Kuurne | The following day | Hills early, a long flat run-in, often a sprint |
| E3 at Harelbeke | A Friday in late March | The closest rehearsal for Flanders |
| Gent-Wevelgem | The Sunday after E3 | Crosswinds, the Kemmelberg, a reduced sprint |
| Dwars door Vlaanderen | The Wednesday before Flanders | A midweek tune-up finishing in Waregem |
| Tour of Flanders | A Sunday in early April | The Monument of the hellingen |
| Scheldeprijs | The Wednesday after Flanders | Flat and fast, a sprinters' race |
| Paris-Roubaix | The Sunday after Flanders | The Monument of the pavé |
A few notes on names. Kuurne-Brussels-Kuurne has not been near Brussels for decades. The E3 race is named after a motorway. Gent-Wevelgem has not started in Ghent for many years, and since 2026 it has been run under a new title, In Flanders Fields, with the start moved to Middelkerke on the coast; the name is a nod to the war cemeteries the route passes around Ypres. This page keeps the older name, under which all of its history was made. Scheldeprijs, first held in 1907, is the oldest race in Flanders and has the fewest cobbles of the lot.
The order is a ladder. Omloop tells the teams who wintered well. E3, on roads the Tour of Flanders will use nine days later, tells them who can win it. By the time the race reaches the Oude Kwaremont in early April, every serious contender has already ridden the decisive climbs at race speed that spring.
- Opening weekendOmloop Het Nieuwsblad on Saturday and Kuurne-Brussels-Kuurne on Sunday start the Belgian season.
- The gapMost of a month in which most cobbled riders race elsewhere, with smaller Belgian events for those who stay.
- E3 and Gent-WevelgemA Friday and a Sunday in late March. The first full-strength meetings of the favourites.
- Dwars door VlaanderenA midweek race four days before the Tour of Flanders. Some leaders ride, others rest.
- Tour of FlandersThe first of the two Monuments on cobbles, decided on steep climbs.
- ScheldeprijsA Wednesday sprint that the Roubaix favourites generally skip.
- Paris-RoubaixA week after Flanders. The end of the cobbled season.
The customary sequence. Exact dates and the midweek order have shifted over the years and are set by the UCI calendar.
Most of the Belgian races are run by one organiser, Flanders Classics. Paris-Roubaix belongs to ASO, the company behind the Tour de France. How the two biggest fit among cycling's five great one-day races is covered in our guide to the five Monuments.
Why cyclists race on cobbles in the first place
Nobody chose them at the beginning. When these races were founded, a cobbled road was simply a road. In the 1890s and 1900s the lanes of French Flanders and the Belgian countryside were surfaced with stone setts because stone lasted under farm carts, and a race from one town to another used whatever lay between.
The choice came later, and it was a conscious one. From the 1950s councils laid tarmac over the old surfaces, and the races that had been defined by them began to lose their character. Organisers responded by redrawing routes to find the stones that were left, then by lobbying to keep them, and the cobbles turned from an accident of geography into the purpose of the event.
There is a sporting reason they were worth saving. This is flat or gently rolling country with no mountain passes. On smooth roads a strong team can hold a peloton together all day and deliver a sprinter to the line. Cobbles do in a few hundred metres what a mountain does in ten kilometres: they break the shelter of the bunch, punish anyone out of position, and make the strongest riders visible. Without them the Tour of Flanders would be a hilly race with a sprint at the end.
Two words are needed. The Flemish call the stones kasseien and the French call them pavé. They are not the same stones. Belgian cobbles tend to be smaller, more regular and laid in tidy rows, the kind found in the back streets of an English mill town. The French sectors were built as farm tracks from large, rough-hewn blocks with gaps between them wide enough to trap a wheel.
Flemish hellingen against French pavé
The Tour of Flanders and Paris-Roubaix are held a week apart on the same kind of surface and ask almost opposite questions.
Flanders is about going uphill. Its decisive ground is a compact range of hills south of Oudenaarde, where narrow lanes climb straight up the slope, and the race loops around so that riders meet fifteen or more of these hellingen in the second half of the race. An effort lasts between half a minute and four minutes and is close to maximal. The winning move is usually an acceleration on a steep cobbled ramp that nobody can follow.
Roubaix has nothing a British club rider would call a hill. Its cobbles lie in sectors of farm track between flat fields, from a few hundred metres to nearly four kilometres long, ridden at 40 km/h and more. Nothing here rewards a sharp acceleration. The race wears riders down, sector after sector, until one of them simply rides away or a small group reaches the velodrome.
| Tour of Flanders | Paris-Roubaix | |
|---|---|---|
| Terrain | Short hills, constant turns | Almost flat, long straights |
| Cobbles | Smaller, regular Belgian setts | Large, rough French farm-track blocks |
| Key obstacles | Climbs such as the Oude Kwaremont, Paterberg and Koppenberg | Around thirty numbered sectors |
| Decisive effort | Repeated explosive climbs | Sustained power over rough ground |
| Role of luck | Present | Much larger: punctures and crashes |
| Finish | A flat run into Oudenaarde | A lap and a half of Roubaix velodrome |
The chart shows why the Kwaremont and the Paterberg are paired at the end of the race. One is long and grinding, the other is over in a minute with a steepest pitch around 20 per cent, and a rider has to be good at both within ten minutes of each other.
The same riders often win both races, which hides how different they are. Tom Boonen and Fabian Cancellara each did the double twice. But there are Flanders winners who never came close in Roubaix because they were too light to hold speed on the flat, and Roubaix winners who were always dropped on the Paterberg.
How Paris-Roubaix rates its sectors from one star to five
Every sector of pavé in Paris-Roubaix has a number, a name, a length and a star rating, and all four are printed in the route book.
The numbers run backwards. The first sector the riders reach carries the highest number, around 30, and the count falls towards the finish, so that sector 1 is the last one before the velodrome. It works as a countdown.
The stars are awarded by the organisers from one to five, and four things go into the judgement: the length of the sector, how irregular the stones are, the general condition of the track, and where it comes in the race. That last factor matters more than it sounds. A rough kilometre after 100 kilometres is a nuisance. The same kilometre after 240 is where the race is won. Ratings are reviewed every year after the route director has inspected the course, and a sector can gain or lose a star if it has been repaired or has deteriorated.
Only three sectors carry the full five.
| Sector | Stars | Length | Roughly how far from the finish |
|---|---|---|---|
| Trouée d'Arenberg | 5 | 2.3 km | About 95 km |
| Mons-en-Pévèle | 5 | 3.0 km | About 48 km |
| Carrefour de l'Arbre | 5 | 2.1 km | About 17 km |
| Hornaing to Wandignies | 4 | 3.7 km | About 80 km |
| Roubaix, the final sector | 1 | 0.3 km | About 1 km |
The Arenberg, Mons-en-Pévèle and the Carrefour de l'Arbre
The Trouée d'Arenberg is the famous one and the least typical. It is a dead-straight track through a forest beside a former coal mine, first used in 1968 on the suggestion of the ex-world champion Jean Stablinski, who had worked in that mine as a young man. The stones are badly laid, the surface is often damp under the trees, and the approach used to be slightly downhill, so the bunch arrived at around 60 km/h. In 2024 the organisers added a chicane before the entrance to bring that speed down. The Arenberg comes too early to win the race. It ends plenty of races, though. Johan Museeuw shattered a kneecap there in 1998, nearly lost the leg to infection, and came back to win two years later.
Mons-en-Pévèle is the longest of the three and has two right-angle bends in it, which string the group out and give an attacker a few seconds of invisibility. The Carrefour de l'Arbre is the last chance. It ends about 15 kilometres from the velodrome, and whoever is alone or in the front group when the tarmac returns is nearly always fighting for the win.
The single-star sector at the end is ceremonial: 300 metres of smooth setts in Roubaix itself, set with plaques that carry the names of past winners.
Why position is everything at the mouth of a sector
The hardest part of a cobbled sector is the two kilometres before it.
Picture a main road wide enough for eight riders abreast, and a right turn on to a farm track three metres across. A peloton of 170 has to go through that gap, and everyone in it has been told by a sports director to be in the first twenty. The run-in becomes a full sprint, with teams forming lead-out trains as they would for a finish line, except that it happens close to thirty times in an afternoon. Riders say the fight for the entrance takes more out of them than the stones.
The reason is arithmetic. On a track that narrow, overtaking is close to impossible, and gaps open the moment the first riders hit the cobbles. A rider who enters in fortieth place may be fifteen seconds behind the leaders at the exit without having made a mistake. And if two riders touch wheels at the mouth of the sector, everyone behind them stops. One crash there can end the chances of dozens of riders who never came near the ground.
- The approachTeams line up on the tarmac a few kilometres out and sprint to put their leader in the first twenty.
- The entranceThe road narrows sharply. Any crash here blocks the track for everybody behind.
- The crownRiders aim for the raised centre of the track, where the stones are most even and drain best.
- The edgesThe dirt strips at the side are smoother but hide flints and holes, and barriers close them on some sectors.
- The exitGaps that opened on the stones are either closed on the tarmac or become the selection.
The general pattern at Paris-Roubaix, as riders and team staff describe it. Details differ from sector to sector.
The crown, the gutter and the rule about leaving the road
A cobbled farm track is cambered: high in the middle and falling away to each side so that water drains off. The centre line, the crown, is the best place to be, because the stones there are the most even and the least muddy. Only one line of riders fits on it. Everybody else is on the slope, where the bike tries to slide down towards the edge.
At the edge there is often a strip of bare earth or grass, and it is smooth. Riders have always used these gutters to rest their hands for a few seconds, and they pay for it, because that is where the sharp flints collect. On some sectors the organisers now put up barriers to keep the race on the stones.
In Flanders the temptation is the cycle path. The UCI's regulations forbid riders from leaving the road to use pavements or cycle paths, and in recent years the rule has been enforced. The Welsh rider Luke Rowe, then of Team Sky, was disqualified from the 2018 Tour of Flanders for it.
What cobbles do to a rider's body
Start with the hands. On a rough sector the bars shake hard enough to blur a rider's vision and loosen his grip, and the instinct is to hold on tighter, which is the wrong response. A tight grip transmits every impact up the arms. Experienced riders hold the tops of the bars loosely, elbows bent, and let the bike move under them. They finish with blisters all the same, and with forearms too tired to work a zip.
The less obvious damage is to the legs. Rolling resistance on pavé is far higher than on tarmac, so holding the same speed costs much more power, and there is no freewheeling to recover. A long sector is three or four minutes at an effort close to a time trial.
Why big riders float and light riders bounce
Cobbles favour mass, and the reason is partly physics and partly physiology. A heavier rider has more momentum, so each stone deflects him less and he holds a straighter line. He also tends to have more absolute power, and on a flat road absolute power is what counts, since no weight is being lifted. A 62-kilogram climber who is unbeatable on an Alpine pass produces fewer watts in total than an 80-kilogram classics rider and is thrown around more by every impact. He is slower and less in control at once.
This is the single biggest difference between the cobbled specialists and the riders who win in July. Boonen and Cancellara were both around 80 kilograms. Grand Tour winners are typically fifteen or more lighter.
Faster is smoother
The oddest fact about pavé is that the way to make it hurt less is to ride it harder. At low speed the front wheel drops into every gap between the stones and climbs out again. At high speed it skims across the tops. So riders use a big gear and a low cadence, sit towards the back of the saddle to keep weight over the driving wheel, and accelerate into a sector, not through it.
A rider who is tired and slows down therefore gets a rougher ride, loses more speed, and slows further. Once that spiral starts on the Carrefour de l'Arbre, it does not stop.
Tyres, pressures and the equipment teams have tried
Almost nothing on a bike prepared for Paris-Roubaix is standard, and the biggest change of the past decade has been in the tyres.
For most of the race's history riders used hand-made tubular tyres, glued to the rim, a little wider than their normal ones. A generation ago that meant about 25 to 28 millimetres. In recent editions most of the field has been on tubeless tyres of 30 to 32 millimetres, run at pressures far below what the same rider would use on a smooth road. The logic is simple. A fat, soft tyre deforms around each stone and absorbs the impact that would otherwise lift the whole bike, so it rolls faster on rough ground as well as more comfortably. Tubeless tyres carry liquid sealant that closes small cuts, and many teams fit foam inserts so a rider can keep going on a flat tyre until help arrives.
The rest of the list is a catalogue of small defences. Two layers of bar tape, sometimes with gel pads beneath. Bottle cages bent tighter or swapped for metal ones, because a full bottle will jump out of a carbon cage. Chain guides to stop the chain bouncing off. Larger chainrings than usual, since the course is flat and fast.
Frames have been more experimental. In the early 1990s Gilbert Duclos-Lassalle won twice in succession on a bike fitted with a mountain-bike suspension fork. Manufacturers have since built road frames with pivots, elastomers or small spring units hidden in the head tube and seat cluster, and a few teams have raced systems that let the rider raise or lower tyre pressure from a handlebar switch, soft for the cobbles and firm for the tarmac between. Each of these has to be accepted under the UCI's equipment regulations before it can be raced. Most have faded. The tyres are what stayed.
Punctures decide as much as legs
A flat tyre on a main road costs twenty seconds. On a cobbled sector it can cost the race, because the team car is stuck behind a long line of riders on a track with no room to pass.
Teams plan around this. Staff are posted with spare wheels at the exits of the important sectors, a team-mate is expected to hand over his own wheel or bike on the spot, and neutral service motorbikes carry wheels through the sectors for anyone. The rules governing that outside help are set out in our guide to feed zones and neutral service. Even so, most editions of Paris-Roubaix contain at least one favourite standing at the roadside with a wheel in the air, and the result has that moment in it.
Bike handling counts for a great deal, which is one reason so many recent winners learned their trade in the mud. Mathieu van der Poel, Wout van Aert and Zdeněk Štybar were all cyclocross world champions before they were cobbled riders; our guide to cyclocross racing in the UK explains the discipline.
Dust, mud and the rare wet Roubaix
A dry Paris-Roubaix is run in a cloud. The team cars and motorbikes lift the dust from the tracks, riders finish with grey faces and red eyes, and the race is fast, because dry stones grip well.
A wet one is a different event. Rain turns the dirt between and beside the stones to mud, which the first vehicles spread across the whole surface. The polished tops of the cobbles become as slippery as ice. Water fills the gaps and hides the holes. And the camber, a minor inconvenience in the dry, becomes the main hazard: a wheel that leaves the crown slides towards the gutter and there is nothing to stop it. Riders fall on the straights, without any bend or collision, simply because the bike has gone from under them.
It hardly ever happens. The race is held in April, the Nord is drier in spring than its reputation suggests, and the men's race went from 2002 to 2021 without a properly wet edition. That 2021 race was itself an oddity, held in October after the pandemic had cancelled the 2020 edition and postponed the next. The riders who finished it were unrecognisable. Lizzie Deignan had won the first women's race on the same roads the day before, on stones that were already wet and greasy.
Wind is the Flemish version of the problem. The flat polder roads near the coast are fully exposed, and a crosswind there splits a race into echelons more reliably than any climb. In the 2015 Gent-Wevelgem a gale blew riders bodily off the road. Geraint Thomas was one of them. He remounted and finished third.
The men who own these races, and what a Flandrien is
Four is the number at Roubaix. Roger De Vlaeminck won it in 1972, 1974, 1975 and 1977 and was known as Monsieur Paris-Roubaix. Tom Boonen equalled him with wins in 2005, 2008, 2009 and 2012. Nobody had a fifth after the 2026 edition. Mathieu van der Poel won three in a row from 2023 to 2025 before Wout van Aert ended the run in 2026.
At the Tour of Flanders the record at that point was three wins, and it was crowded. Achiel Buysse, Fiorenzo Magni, Eric Leman, Johan Museeuw, Boonen, Cancellara and van der Poel had all reached it by the end of 2025, and Tadej Pogačar made it eight with his third win in 2026. Magni is the surprise in that list, an Italian who won three years running from 1949 and was called the Lion of Flanders by the Belgians he kept beating.
- 4Record Paris-Roubaix wins
- 3Record Tour of Flanders wins
- 3Five-star sectors at Roubaix
- 5Stars on the roughest sectors
Figures after the 2026 editions. Both win records are shared, by two riders at Roubaix and eight at Flanders, and will move in time.
Then there is the word. A Flandrien was originally one of the Flemish professionals of the early twentieth century, farm boys and labourers who raced for money because it paid better than the fields. It now means a type: a rider who is at his best when the weather is at its worst, who attacks when others are suffering, and who does not complain. Briek Schotte, twice a Tour of Flanders winner in the 1940s and a starter in the race twenty times, is the model. He was called Iron Briek.
A rider need not be Flemish to be called one. It is a compliment paid by Belgian crowds to foreigners who race the way they like, and it has been paid to an Italian, a Swiss and more than one Briton.
British riders on the cobbles
British success on the stones has been scattered across sixty years and mostly achieved by riders who went to live there. Simpson and Barry Hoban both based themselves in Ghent. Bradley Wiggins was born in the city.
| Rider | Race | Result | Year |
|---|---|---|---|
| Tom Simpson | Tour of Flanders | Won | 1961 |
| Barry Hoban | Gent-Wevelgem | Won | 1974 |
| Roger Hammond | Paris-Roubaix | Third | 2004 |
| Nicole Cooke | Tour of Flanders (women) | Won | 2007 |
| Mark Cavendish | Scheldeprijs | Won | 2007, 2008, 2011 |
| Mark Cavendish | Kuurne-Brussels-Kuurne | Won | 2012, 2015 |
| Ian Stannard | Omloop Het Nieuwsblad | Won | 2014, 2015 |
| Geraint Thomas | E3 at Harelbeke | Won | 2015 |
| Ian Stannard | Paris-Roubaix | Third | 2016 |
| Lizzie Deignan | Paris-Roubaix Femmes | Won | 2021 |
Hoban's is the one that deserves to be better known. The Yorkshireman won the 1974 Gent-Wevelgem in a sprint from a group that contained Eddy Merckx and Roger De Vlaeminck, the two best one-day riders in the world. After the 2026 edition it was still the only British win in the men's race; Lizzie Deignan, as Lizzie Armitstead, won the first women's Gent-Wevelgem in 2012.
Hammond's podium at Roubaix in 2004 came from a rider who had been a junior world champion in cyclocross, which fits the pattern described above. Stannard's two wins at Omloop were built on something plainer, an ability to ride on the front in foul weather for longer than anyone else, and his third place at Roubaix in 2016 came in a five-man sprint on the velodrome.
Thomas won E3 in 2015 by attacking alone in the last few kilometres, two days before the wind blew him off the road at Gent-Wevelgem. Three years later he won the Tour de France, and he is one of very few riders of his generation to have been a contender in both worlds. Wiggins tried the reverse journey: as a former Tour winner he rode Paris-Roubaix in 2014 and finished ninth, on roads that Tour winners almost never go near. Both careers are covered in our guide to British Tour de France winners.
And Deignan. On 2 October 2021 she attacked on the first cobbled sector of the first women's Paris-Roubaix and was not seen again, riding more than 80 kilometres alone on wet stones. After the 2026 editions it was still the only British win in either version of the race.
Amateurs can sample the same roads. Both Monuments have mass-participation rides over the race route on the day before the professionals, and they draw large British entries each April; our guide to how sportives work explains the format.
Who keeps the cobbles there
By the middle of the 1960s Paris-Roubaix was running out of road. Mayors along the route, embarrassed at seeing their communes on television as places of mud and broken stone, had the tracks tarmacked one after another, and the cobbled distance fell to barely twenty kilometres. The race was turning into an ordinary flat classic.
It was rescued by two men with a map. Albert Bouvet, a former professional working for the organisers, and Stablinski went looking for forgotten farm tracks east of the traditional route, in the mining country around Valenciennes. The Arenberg was their best find. The course was bent eastwards to take in what they discovered, and the modern race, with its long detour through the coalfield, dates from those years.
Finding the stones was one job and keeping them another. A farm track used by tractors and left alone for a few winters loses its stones to subsidence, frost and theft. More than forty years ago local enthusiasts formed an association, Les Amis de Paris-Roubaix, to do the maintenance the communes would not. Its volunteers, working with students from the region's horticultural colleges, lift and relay damaged stretches stone by stone each year, clear the mud and weeds, and report to the organisers on what is fit to race. Without them several sectors would be unrideable. The Arenberg itself was missing from the race for about a decade from the mid-1970s, and was left out again in 2005 when subsidence from the old mine workings beneath it had made the track unsafe.
The law now helps. Some of the French sectors have been given a measure of official protection, and in Flanders the best-known cobbled climbs are listed monuments that cannot be resurfaced. Flanders had its own period of discovery: the Koppenberg entered the Tour of Flanders in 1976, and the Paterberg was added a decade later after a local farmer cobbled the lane himself.
So the surface that began as the cheapest way to build a road is now preserved at some expense, by hand, for one afternoon a year.
Cobbles in the Tour de France
Every few years the Tour's route includes a first-week stage across the north that borrows a handful of Roubaix sectors. The organisers own both races and know exactly what they are doing. A cobbled stage produces time gaps among the overall contenders that a flat stage never would, a week before the mountains.
| Year | Stage finish | What happened |
|---|---|---|
| 2010 | Arenberg | Thor Hushovd won; Fränk Schleck crashed out with a broken collarbone |
| 2014 | Arenberg | Lars Boom won in the rain; defending champion Chris Froome abandoned after crashing before the cobbles |
| 2015 | Cambrai | Tony Martin won alone and took the yellow jersey |
| 2018 | Roubaix | John Degenkolb won; Richie Porte crashed out early in the stage |
| 2022 | Arenberg | Simon Clarke won from a break; Tadej Pogačar gained time and Primož Roglič crashed |
The pattern in that table is consistent. The stage is won by a classics specialist or a breakaway rider, and the news is made behind him by a favourite losing the Tour. In 2014 Vincenzo Nibali, a rider with good bike handling and no fear of the wet, took more than two minutes out of his main rivals on the stones and went on to win the Tour. Froome never reached the first sector.
The contenders are badly suited to it for the reasons given earlier. They are light, they are built for long climbs, and most of them have never ridden a spring Classic, because their teams would sooner they did not risk it. They are also riding for a different kind of result: a classics rider can gamble everything on one sector, while a Tour leader has to get through a dozen or so of them without losing a minute. So the teams bring a cobbled specialist or two purely as bodyguards for that single day.
Whether such a stage belongs in a three-week race is argued over every time one appears. The case against is that it makes the Tour a lottery. The case for is that the Tour is supposed to test a complete rider, and that a champion who cannot handle a bike on a bad road has a gap in his education. How these days are graded alongside the others is explained in our guide to the types of Tour de France stage.
There is more on the sport in our cycling coverage, and the full series is listed on the England guides hub.