New York ? Six former high school classmates say they’ve broken the record for stopping at every station on New York City’s massive subway system – all 468 of them.

The group set out Thursday to beat the fastest time – 26 hours, 21 minutes – for riding through the entire subway system and making every stop. That record was set in 1989.

According to their Web site, www.rapidtransitchallenge.com, the six friends finished Friday in 24 hours, 54 minutes and 3 seconds, shaving about 1 1/2 hours off the previous record.

Photos posted on the site showed the sleepy bunch catching naps on the trains.

The marathon riders came prepared with chocolate, energy bars, bottled water, socks, toothpaste and a complex itinerary involving 70 transfers.

The friends said they started talking about taking on the subway-riding record when they were students at Regis High School in Manhattan.

The subject came up at their 10th reunion in June and evolved into a detailed game plan, plotted out in e-mail and conference calls.