Ten-thousand bicyclists are making a 200-mile ride this weekend in the annual Seattle to Portland Bicycle Classic. Most spend Saturday night in the Centralia-Chehalis area. Most of the route goes over county roads and city streets. The STP is organized by the Cascade Bicycle Club in Seattle. The ride met its quota and sold out in February. Riders start at the University of Washington and finish at Holladay Park in Portland and according to The Chronicle, some of the bikes complete the ride in one day.