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LUXEMBOURG — After three stages of the Tour de France, Welshman Geraint Thomas of Team Sky leads the race ahead of teammate and overall favorite Chris Froome, the Kenyan-born Briton, by 12 seconds, thanks to his winning ride in the time trial on stage one in Düsseldorf and his superb racing since.

Like Froome, Thomas is riding a carbon-fiber Pinarello Dogma F10 equipped with Shimano’s new electronic Dura-Ace component group and C-50 wheels and Continental Pro Ltd tubular tires.

After stage three, Sky mechanics let Business Insider get up close to the Tour leader’s bike and take a few photos, which you can see below.

We showed up after mechanics had washed Thomas’ bike. It has yellow handlebar tape and saddle as he is the race leader. The other bikes, from left, are those of former world time-trial champion Vasil Kiryienka (No. 3) and defending Tour champ Chris Froome (No. 1).

We showed up after mechanics had washed Thomas' bike. It has yellow handlebar tape and saddle as he is the race leader. The other bikes, from left, are those of former world time-trial champion Vasil Kiryienka (No. 3) and defending Tour champ Chris Froome (No. 1).

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Thomas’ race number is 9 and the “V 1” indicates his number of stage victories so far in the Tour. The Welsh flag is a nice custom touch.

Thomas' race number is 9 and the

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It’s a modern-day custom for Tour leaders to add some yellow to their bike. Thomas’ bike has yellow tape and saddle. He also has an extender for his computer that helps keep his handlebar tidy.

It's a modern-day custom for Tour leaders to add some yellow to their bike. Thomas' bike has yellow tape and saddle. He also has an extender for his computer that helps keep his handlebar tidy.

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Thomas rides a long stem and handlebar made by PRO, the component wing of Shimano.

Thomas rides a long stem and handlebar made by PRO, the component wing of Shimano.

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The cables were neatly housed, and there was even some yellow there too …

The cables were neatly housed, and there was even some yellow there too ...

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The yellow Fizik saddle is a special touch as well …

The yellow Fizik saddle is a special touch as well ...

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Throughout the frame and fork, there are colored lines that add Sky team colors to the matte-black frameset.

Throughout the frame and fork, there are colored lines that add Sky team colors to the matte-black frameset.

Daniel McMahon/Business Insider

Pinarello’s E-Link technology integrates the Di2 junction into the frame, allowing Thomas’ mechanics to charge and update the electronic-shifting system.

Pinarello's E-Link technology integrates the Di2 junction into the frame, allowing Thomas' mechanics to charge and update the electronic-shifting system.

Daniel McMahon/Business Insider

All bikes raced in the Tour must be approved by the world governing body of cycling, the UCI — or at least they’re supposed to be.

All bikes raced in the Tour must be approved by the world governing body of...