The boutique spin giant is riding a wave of 2016 nostalgia back into the spotlight, and Gen Zers are on board. “As someone who has tried almost every workout class on the planet, there is nothing like SoulCycle,” said TikTok creator Matt Trav in a video posted in early January. “The average human being cannot understand what blowing out the candle during the soulful song can do to the human psyche.”