Tour de France stage winner Joaquim Rodríguez has posted a terrifying video of a crash during a training ride where he went straight over a barrier and down a steep ditch.

Rodríguez, who last month announced he won't be riding professionally in 2017, posted a video on Twitter of the crash which he captured on a chest-mounted camera.

The Spanish rider was heading towards a right-hand turn during a downhill section when the bike locked up and he went into and over the barrier.

Rodríguez seemed happy to dust himself off and get back on the bike.

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"Behaviour of a cyclist when you fall," his Tweet is translated to from Spanish.

"First: I'm fine. Second: How is my bike. Third: Put the handle well and continue."

Rodríguez has claimed a top three finish in all three Grand Tour rides including a third in the 2013 Tour de France.