. >> reporter: out of the gate, sarah jane nicholls zips around the track in the blink of an eye, competitivepirit drives her forward. what makes her special isn't she gives the boys a run for their money but rather she's old enough to be their mom. >> the thrill of it, the excitement of the sport, i'm loving it. >> away, and sarah jane off like a train. >> she conquered bmx in the 1990s, rolled to the top of the podium in 1996, hung up the helmet never to compete again. >> went out on a high as british champion. >> reporter: she slammed the brakes when the pandemic brought isolation and menopause. >> i was tired all the time, irritable. >> reporter: she turned to an old friend and accepted an invitation to check out a track. >> managed to balance, went down, and just the very first time of coming down here, i was -- i enjoyed it. >> reporter: just like that, sarah jane felt like a teenager again. >> it came flooding back. my brain was still -- i was 16. >> reporter: maybe it's just like riding a bike because she's still pretty good, good enough to compete in the world championship. >> you ju