Ryan Williams on Instagram: “The Backflip Quad Tailwhip is coming! Who wants to see me send this to the landing?🤔 #bmx #trick #rwillyland #megaramp #fun #practice…”
The Quad
BMX: Le quadruple backflip de Jed Mildon - Vidéo Dailymotion
Kurtis Downs: World's First BMX Backflip Quad Whip - YouTube