Youtube! Kelly Brook fantastics busty "Boobs" for Sky Ride 2012

Kelly made a small concession to the spirit of the event by arriving for the ride wearing a grey Sky Ride hoodie.

She soon removed the outer garment to continue the rest of her ride unencumbered by an extra layer.

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Vintage chic: Kelly's bike sported a cute wicker basket on the front

Kelly is the face of the Sky Ride campaign – along with Mayor of London Boris Johnson – which aims to get the nation biking again.

Today it’s Manchester’s turn, and there are rides planned all over the UK during the coming weeks, where masses of cyclists will be able to enjoy traffic-free routes.

Recent reports suggest that record numbers of Londoners will be taking to their bikes during the Olympics.

No wonder she's smiling: Kelly recently returned from a romantic trip to Italy with her boyfriend Thom Evans (Read more, See more Pictures, and Watch Video)