"Such sad news hearing about the death of Ruaraidh McLeod. RIP buddy. Gone way to soon. Such a good dude!" he wrote.
Others in the cycling fraternity were also mourning his loss.
Cycling Canterbury posted about losing one of their own.
"A New Zealand Champion and National Representative but most importantly he was a friend to all, and a wonderful kind spirited person. At 25, taken from us way to soon."
His friends at Villa Maria College were also saddened.
His cycling had sent him all around the world, which sparked more tributes.
Rip bro.... you wil be mist at home end here i belgium...😢 lots of love to familie end friends back home.... #oldmisty...# Ruaraidh McLeod
Posted by David Baert on Monday, April 17, 2017
A fellow Spanish cyclist said McLeod was a "great man laughing all the time. Making the most out of s*** situations".
McLeod's death doesn't count in the Easter road toll, which ended at 6am today and stands at two, as it was an event on a private road.