Your browser isn’t supported any longer. Update it to obtain the most effective YouTube experience and our most current options. Learn more Kym Perfetto When her Instagram feed is stuffed with badass biking shots, biking is only some of NASM-Qualified trainer Kym Perfetto's YouTube material. (Although, exciting truth, she was https://www.youtube.com/watch?v=oc2nwLXmw4M