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Ryan Reynolds and Blake Lively - They're already relationship goals, but add biking to the mix and you've got the ideal couple.

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Kendall Jenner -

The young supermodel had a blast staying fit and navigating New York City on a Citi Bike.

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Hugh Jackman - The greatest showman was spotted riding his mountain bike in the West Village in New York City.

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Eva Longoria - The actress and her husband José Bastón cycled around in Miami's South Beach.

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Leonardo DiCaprio - The eco-friendly star took advantage of an unseasonably warm day in New York City dressed in relaxed clothes. 

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Naomi Watts and Liev Schreiber - The ex-pair were seen taking the kids out for a little fun in the sun. 

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Gordon Ramsay - With all that food to taste, the chef stays fit riding a US$6,000 Specialized S-Works bicycle.

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Solange Knowles and Alan Ferguson - Following their wedding, the singer and her music director husband celebrated by hopping on some bikes in the historic Treme section of New Orleans. They have since split.

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Usher - The singer was all smiles arriving back at his hotel in NYC after releasing some endorphins.

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Adam Brody - It figures that 'The O.C.' star stuck around in California. He simply traded in his character's skateboard for a bike.

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David Hasselhoff - The actor was spotted riding a CitiBike with his wife Hayley Roberts in Miami Beach.

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Simon Cowell - The 'X Factor' judge had a big, breezy smile on his Motostrano electric bicycle, which goes up to 45 miles per hour, in Beverly Hills, California. He famously had a horrific accident on an electric bike, but has since been seen back on them.

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Ethan Hawke - The actor rode around Brooklyn looking adorably tousled. 

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Selena Gomez and Justin Bieber - The now-exes turned biking into an adorable date idea when they were photographed cruising around in Los Angeles.

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Patrick Dempsey - The actor has a specialized hybrid bicycle that he was spotted riding in Malibu. 

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Chris Martin - The Coldplay singer stretched his legs in Malibu on a bike that coordinated with his outfit. 

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Kristen Bell - The glowing actress was seen practicing some pregnancy-friendly exercise when she pedaled for two to brunch (to eat for two).

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Pierce Brosnan - Pierce Brosnan is staying healthy by taking long rides along the beach with his wife Keely Shaye Smith.

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Elle Macpherson - The Australian supermodel caused a stir when she went on a bicycle ride with a mystery hunk on Miami Beach. 

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Shia Labeouf - The actor was clad in a camouflaged palette as he rode around New York City. 

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Brooklyn Beckham - The aspiring photographer was seen biking in New York City, probably on his way to class at Parsons University.

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Alessandra Ambrosio - The model enjoys a healthy lifestyle and takes a spin around her neighborhood in Los Angeles with her daughter. 

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Jack Osbourne - A bearded Jack Osbourne was spotted riding his trike bike around Los Angeles with his daughter in the front basket.

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Justin Theroux - The stylish, bundled-up actor was spotted out on a bike ride in New York City.

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Matt Damon - The actor makes a sharp turn on his morning bike ride in Brentwood, California.

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Famke Janssen - The actress biked home after a dinner in Soho, New York City. 

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Sam Smith - The singer was cycling around Montreal, Canada, on a very unique-looking bike. They were careful not to text and ride!

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Ben Stiller and Christine Taylor - The friendly exes were seen together after having a two-hour lunch at a Tribeca restaurant in New York.

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Willem Dafoe - There's nothing like pumping those leg muscles on a relaxing vacation in the Hamptons.

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Michelle Rodriguez - The actress rolled up on her beach cruiser bicycle to Gjelina restaurant in Los Angeles, California.

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Adam Sandler - The actor took the whole family out for a bike ride near his Pacific Palisades home. 

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Hilary Swank - The actress and her former boyfriend, and his children, were see cycling down Abbot Kinney after a lunch at Gjelina's at Venice Beach.

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Chris O'Donnell - The actor was seen cycling on the set of 'NCIS: Los Angeles' in LA.

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Rowan Atkinson - Mr. Bean arrived on his bike at the premiere of his new movie in Amsterdam. 

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Naomi Watts - The actress might officially be the most attractive cyclist in New York. 

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Kelly Brook - Kelly Brook and David McIntosh rented bikes and went out for some lemonade on a lovely summer afternoon.

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Joe Jonas - The singer practiced bike safety and wore a helmet while he biked around Manhattan. 

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Sophie Turner - Jonas' then soon-to-be wife, 'Game of Thrones' actress Sophie Turner, joined him in East Village of New York City.

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Arnold Schwarzenegger - The Terminator appears in great health as he cycled to the gym on a fat tire bike with his girlfriend Heather Milligan. 

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Russell Crowe - The actor reportedly rode a bicycle from The Beverly Hills Hotel to 'The Tonight Show with Jay Leno' in Los Angeles.

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Keri Russell - The 'Americans' actress went for a bicycle ride in Brooklyn, New York wearing casual fall attire. 

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Billy Crudup and Naomi Watts - The denim-clad actors rode Citi Bikes through Manhattan after having lunch in the West Village.

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Kellan Lutz and Brittany Gonzales - The 'Twilight' actor and his partner cycled through Los Angeles, looking incredibly fit in sportswear.

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Liev Schreiber - The actor took his son Alexander home after school by bike. Two rides for the price of one! 

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Hayden Christensen -

The actor took his sleepy daughter on a bike ride to pick up a healthy smoothie at Kreation Kafe in Brentwood, California.

See also: The world's safest cities for cyclists

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