Bike racer Guy Martin has sped to victory after breaking the world’s gravity-powered sledge record in Andorra for the Channel 4 show Speed with Guy Martin.

The 32-year-old motorbiker and mechanic from Lincolnshire sledded 21mph quicker than the old record, reaching 83.5mph during the challenge in the ski resort of Grandvalira, the largest ski resort in the Pyrenees.

He broke the record on the new Pista Riberal speed ski slope – a 984ft run with a massive 360ft drop.

The successful record attempt was the grand finale in Martin’s TV series, during which he undertaken a number of speed-based challenges, including riding a motorcycle across the surface of a lake and building and flying the world’s fastest human-powered aircraft – each time analysing the science of speed and exploring the boundaries of physics.

Tonight’s episode was a fitting end to the series.  Here he is in training on the Cresta Run in St Moritz, prior to his victorious attempt at the world sledding record: