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49 votes
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Why are puncture-resistant tires not used in professional races?

To a racer, rolling resistance and handling top the list; durability is far down the list. The coefficient of rolling resistance (Crr) for a racing tire on typical French or Italian roads used during ...
R. Chung's user avatar
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27 votes
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TdF: How does putting one team member in a break away help the rest of the team?

The full answer depends exactly on the teams involved and the composition of the break but, in general, the key to understanding this isn't physics as much as it is game theory. In a race like the ...
R. Chung's user avatar
  • 14.2k
20 votes

Why are puncture-resistant tires not used in professional races?

Puncture resistant tires are heavier relative to non-puncture resistant tires. They also have sloppier handling/less control/higher rolling resistance, and are typically harder to change (though ...
Batman's user avatar
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19 votes
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Why does the Tour de France have a minimum weight limit on the bicycles?

The 6.8 kg limit is due to UCI regulation 1.3.019, which you can find here, and thus applies to all races sanctioned by the UCI. It was originally instituted in 2000 in order to ensure that ...
R. Chung's user avatar
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15 votes

Why are puncture-resistant tires not used in professional races?

If you have set of identical riders, and one rider puts a slower tyre on, they will lose if no-one gets a puncture (let's simplify and assume a time trial so we can ignore effects of the peloton). ...
Chris H's user avatar
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12 votes

Why do all riders in the Tour wear WHITE bike shoes?

They don't. Here are some links to examples: https://www.bikeradar.com/features/tour-de-france-shoes-gallery/ https://www.bikeradar.com/features/top-5-custom-road-shoes-at-the-tour-de-france/ https://...
Batman's user avatar
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12 votes
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Were titanium road bikes ridden in the Tour de France?

According to this page, Luis Ocana won the tour on a Ti bike; Lance Armstrong (attach all necessary asterisks to his name) rode a Ti time-trial bike in 1999. It looks like Lotto raced on Litespeed Ti ...
Adam Rice's user avatar
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11 votes
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Disc brake equipped time trial bikes in grand tour

The main reason is the 2020 Specialized Shiv provided by their sponsor is only produced in a disc version. You can see an article about the bike here: https://www.bikeradar.com/news/specialized-...
Andy P's user avatar
  • 18.3k
11 votes

Do teams change gearing depending on the Tour De France stage?

Pros can and do change gearing for any reason they want to - terrain, rain, wind, phase of the moon. It wouldn't even surprise me if they change gears based on inputs from doctors/sports ...
Andrew Henle's user avatar
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10 votes

Is Claris today better than best groupset from 10 years ago?

There are 2 metrics on which today's Claris is "better" than Dura-Ace 9000: range and low-speed performance (bigger cassette sprockets, and possibility to have gravel-ish sized chainrings). ...
Rеnаud's user avatar
  • 20.7k
9 votes

Why is doping illegal in Tour de France?

You have to draw the line somewhere. If you allow all doping, then the winner will be the one most willing to sacrifice their long-term health to use the most drugs and maximise performance ...
Carbon side up's user avatar
9 votes

Attacking during a race when your competitor has a mechanical failure?

It's just considered to be bad sportsmanship to take advantage of another rider's mechanical problem. The underlying idea is that, as much as possible, the race shouldn't be determined by random ...
jimchristie's user avatar
  • 11.9k
8 votes

Attacking during a race when your competitor has a mechanical failure?

There's also the somewhat nebulous concept of whether or not "the race is on". Basically if you're cruising along in the peloton it would be extremely bad form to suddenly attack out of nowhere when ...
Jamie A's user avatar
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8 votes
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Grand Tour rider holding two jerseys - what do they wear?

The riders don't get to choose. The leader of a classification in a stage race must wear the jersey of the classification that they are leading. In instances where one rider is leading multiple ...
Ealhmund's user avatar
  • 2,055
8 votes
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Under what circumstances is a domestique a rebel (or even a traitor)?

The role of van Aert was precisely to win stages. He was not an ordinary domestique at all, at least not in flat and classic-like stages. He was doing supporting role in mountain stages and when the ...
Vladimir F Героям слава's user avatar
7 votes

What help can the domestiques provide on mountain climbs?

Pro's are FAST - they ride up mountains at a speed where they can still gain significant benefit from drafting. As witnessed in the stage you are mentioning it can often be quite windy in the ...
Andy P's user avatar
  • 18.3k
7 votes

Grand Tour rider holding two jerseys - what do they wear?

The leader of the General Classification (GC) always wears the maillot jaune (yellow) regardless of any other jerseys they may be leading in. Inevitably on the second day of the Tour, the fastest ...
DavidW's user avatar
  • 5,203
7 votes

Do teams change gearing depending on the Tour De France stage?

Yes, they have choice. All three component groups you mentioned have a range of different chainring and cassette options and nothing in the rules prevents using components from a different ...
ojs's user avatar
  • 22.1k
7 votes

Were titanium road bikes ridden in the Tour de France?

Yes. In 1991 the "Z" Team lead by Greg LeMond, rode Merlin Ti bikes. In 1991, a year after winning his third Tour de France, Greg LeMond’s Z Team came back to the race on prototypes of the ...
DavidW's user avatar
  • 5,203
6 votes

Why is doping illegal in Tour de France?

Allowing Doping defers the risk of participating until after the end of the event. In normal situations, risk taking that does not pan out is normally associated with losing, so taking risks is self ...
mattnz's user avatar
  • 51k
6 votes
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Are there rules for how many riders can be in a World Tour team?

The UCI does have rules for the maximum number of riders. The base max is 28, but you can get extra spots for having new pros on your roster, up to 2 extra spots. The rule comes from section "2.15.110 ...
KevinC's user avatar
  • 611
6 votes
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Mechanic and top rider's bike on right side of team car - why?

Yes, the idea is to have the quickest bike change possible for the person it matters most for. With the bike attached on the same side as the mechanic's, he just opens his door, turns, and grabs the ...
Alex's user avatar
  • 398
6 votes
Accepted

Last no helmet ride in the Tour de France

Helmets were entirely optional until 5 May 2003. On 5 May 2003 the following rules were introduced https://web.archive.org/web/20160304090208/http://oldsite.uci.ch/english/news/news_2002/20030502i.pdf ...
thelawnet's user avatar
  • 4,240
6 votes

Most stage wins without a Tour de France title

A bit of searching turns up a tie. In the 1930 Tour Charles Pélissier won 8 stages but the overall winner was André Leducq who only won 2 individual stages. In the 1976 Tour Freddy Maertens won 8 ...
DavidW's user avatar
  • 5,203
6 votes

Is Claris today better than best groupset from 10 years ago?

Modern claris in 2022 is an 8 speed system, with either dual or triple chainring setup. https://bike.shimano.com/en-EU/product/component/claris-2400.html DuraAce 7900 was released in 2008 and is a 10 ...
Criggie's user avatar
  • 126k
6 votes

Were titanium road bikes ridden in the Tour de France?

The question has already been answered, but this is why I think titanium never really made it into the Tour. Ti frames are either a bit lighter or similar weight to steel bikes. They were also tricky ...
Weiwen Ng's user avatar
  • 32.7k
5 votes

Why can't Yellow Jersey change hands on last day of Tour De France?

Unlikely to occur, but of course a crash or medical withdrawal could result in the yellow jersey changing hands on the final day.
user38755's user avatar
5 votes
Accepted

If RAMROD were a mountain stage of the Tour de France how would the climbs be categorized?

The TdF mountain stage I know best is stage 18 from 2017. It was that year's Etape du Tour, and I rode it* solo the next year. Strava rates the main climbs and some sections of them. For those that ...
Chris H's user avatar
  • 59.9k
5 votes
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What help can the domestiques provide on mountain climbs?

On the flat, following a rider gives you a great advantage because of what you said: the draft. But also when climbing there is an advantage. There is a little bit of draft, even at low speeds. "...
Christine's user avatar
  • 364
4 votes

TdF: How does putting one team member in a break away help the rest of the team?

Don't forget that there is money involved! Every competition in the TDF has a cash prize. Every sprint. Every categorized mountain. Often towns along the way will have their own prizes, such as a cow, ...
Mohair's user avatar
  • 1,198

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