The Tour de France and cycling's governing body, the UCI, are taking steps to verify that riders are not cheating by using bikes that have hidden motors.
The Astana rider comfortably beat Spain's Ion Izagirre and Dutchman Bauke Mollema, who were second and third.
A late but perfectly timed sprint finish helped Peter Sagan to his third stage victory of this year's Tour de France at Stage 13
Thomas now has a one minute 25 second lead over second-placed Chris Froome in the General Standings of the Tour de France
The first alpine stage of this year's Tour de France saw Frenchman Julien Alaphilippe come home first, while Greg Van Avermaet retained the yellow jersey with a fourth place finish in Le Grand Bornand.
John Degenkolb won a dramatic stage 9 of the Tour de France, outsprinting yellow jersey holder Greg Van Avermaet late on.
Dylan Groenewegen snatched his second win in a row on the Tour de France when he prevailed in awe-inspiring fashion in a bunch sprint at the end of the eighth stage on Saturday.
Ireland's Dan Martin wins Tour stage six
He's nowon course for a record-equalling sixth green jersey.
Last year the Slovak was thrown out after the fourth stage when he sent Mark Cavendish crashing in a chaotic sprint.
Colombia's Gaviria takes opener for Quickstep
The defending champion will compete, even if the organisers of cycling's biggest race want to prevent the four-time winner from appearing in this year's event, says Team Sky.
Chris Froome is on track to become the first Briton to win the Giro d'Italia -- and match the achievements of cycling greats Eddy Merckx and Bernard Hinault.
Meet the Cycle Squad Maniaccs: DBlocks, MoBlocks, Twisted700, and ArtBMX
The 25-year-old Michelton-Scott rider produced a sublime final sprint to give himself a 47 second lead at the top of the leaderboard with 10 stages to go.
British debutant scores impressive victory in Giro D'Italia
The Quick-Step Floors rider was the quickest in a bunch sprint on day three in Tel Aviv, Israel.
Italy's Elia Viviani has won the second leg of the Giro D'Italia and Rohan Dennis has taken the pink jersey from defending champion Tom Dumoulin.
Sky's Chris Froome came in a disappointing twenty first having crashed whilst reccying the course before the race.
Bike-loving Sweden has cranked up its fondness for two wheels — by introducing them to the classroom.
The first of the season's great cycle races begins on Friday with Britain's Chris Froome looking to complete the set of blue riband trophies, and become the first rider to hold all three at the same time since Eddie Merckx.
But the disgraced former champion will only pay a fraction of the amount sought in a lawsuit brought by fellow cyclist Floyd Landis and the US government
Drone footage shows a new bike track on Italy's largest lake that will give cyclists the impression they are flying over the water.
It was the first time Goolaerts had competed in the senior Paris-Roubaix race.
In a tweet, his team colleagues expressed their sadness and sympathies to his family
The cyclist died at a hospital in Lille after crashing in Paris-Roubaix. He was 23.
Dutchman Niki Terpstra claimed an impressive solo victory on Sunday to add the Tour of Flanders to his 2014 Paris-Roubaix title for his second triumph in a 'Monument' classic.