rory sutherland of australia. and levi lighthammer of santa rosa who is favored for the win.he average ride was 3 hours, 27 minutes and 51 seconds. that is an average speed of 23 miles per hour which is amazing considering they went over the top of mount hamilton and then all the way up sierra road. >> that is phenomenal. they are the best in the world. all right. len ramirez, thanks so much. we will be right back. [ music ] ,,,,,,,,,,,,,,,, look . >>> many of us of a certain age, women and men alike have asked ourselves what would we look like with grey hair? well, after 20 years of coloring my hair we now know what i look like. the decision to go grey is often an emotional one. tonight a look at what it takes for people to finally ditch the dye. >> great. it's good. >> for shirley tubein it started in her 30s. >> and i kind of liked it. >> so she kept it. >> i never thought of my hair as something that was going to stop me from doing anything. >> but many women see grey as the dividing line between young and old. men, too. just because president obama or george clooney may