It’s all over social media and, unsurprising, has reached into the pro peloton as well. The ALS Ice Bucket Challenge has had several high profile riders and personalities taking part in recent days, including two former Tour de France winners.

Chris Froome got the ball rolling when he, Pete Kennaugh and Team Sky’s coach Tim Kerrison got doused at the end of a Vuelta stage. Froome nominated GC rival Alberto Contador, who accepted and had his own dunking, as well as the Tour de France race director Christian Prudhomme. The Frenchman obliged in front of several laughing ASO colleagues.

The Tour’s green jersey Peter Sagan also got in on the act, putting two bags of ice into the water prior to upending the whole lot over his head. He seemed a very willing participant; not surprising, really, when you consider the sweltering temperatures at the Vuelta a España.

Meanwhile Jens Voigt joined in at the USA Pro Challenge, giving himself an impromptu shower at a stage end.

The Ice Bucket Challenge has now raised over $80M for NML (ALS) and here’s the simple way it got started.