How Fast Can Duncan Byrnes Primo Slide?!Subscribe to The Berrics 👉http://bit.ly/TheBerricsYoutube This is Duncan Byrnes's love letter to Primo Desiderio: an icy, mach speed Primo slide from the hubba all the way to the marquee. And it's one of the scariest tricks we've seen go down at the park. Daily Videos and more: http://theberrics.com Like The Berrics on Facebook: http://fb.com/berrics Follow The Berrics on Instagram: http://instagram.com/berrics Follow The Berrics on Twitter: http://twitter.com/berrics Follow The Berrics on Snapchat: @TheBerrics