11.   Sometimes riders go even faster.

12.   The next morning, he said, President Kennedy federalized the Alabama National Guard and sent marshals so the riders could go on to Jackson, Miss.

13.   Witnesses said when the riders went under a freeway overpass, officers cut them off and that motorcycles sideswiped riders and officers on foot hit cyclists with batons.

14.   You have altitude, how far the rider goes out of the halfpipe, and other basic things.

15.   Other riders also went down in the fall but none was seriously hurt.

16.   Forty-one tracks will run races with replacement jockeys Sunday even if regular riders go on strike over insurance coverage, according to the Thoroughbred Racing Associations.

17.   Riders also can go inside the restaurant, Olsson said.

18.   Riders also can go inside, Olsson said.

19.   Sunday features finals for the slopestyle events, in which riders go through a course of jumps, rails and other obstacles.

20.   The absence of bolts and washers allows air to zip over the bike, allowing the rider to go faster.