Watch: Travis Pastrana does backflip over Thames

HERE'S Travis Pastrana doing an incredible backlflip across the River Thames in front of the O2 Arena.

The America stunt rider leapt 75ft from barge to barge with only a 150ft run-up and 36ft to stop in before plunging into the Thames. 

American freestyle motocross rider Mike Metzger suffered a fractured a vertebra attempting a similar barge-to-barge jump in Long Beach harbour, Los Angeles, in 2006. 

Pastrana's stunt marked the announcement of a 2018 tour by extreme sports show Nitro Circus.