Steamboat Springs — It was a big summer of downhill mountain bike in Steamboat Springs, said Trevyn Newpher, director of the Steamboat Ski Area’s bike park.

The park was able to expand by adding three new trails, two beginner downhill trails and an intermediate trail. Riders will get their last chance to tackle those trails this weekend and their last chance to race them on Saturday.

“It’s continuing to grow,” Newpher said of the park. “It’s been exciting to be a part of.”

The closing weekend for the bike park kicks off at noon Saturday with the Fourth annual Quick and Chainless downhill mountain bike race at the ski area.

For $30 for those with a season pass and $40 for those without, riders will get the chance to race sans chain down Rustlers Ridge, to Buckin’ Bronc and then Bull Rider.

There will also be a children’s strider race at 12:30 p.m.

Riders must remove their chains to compete, ensuring it’s an entirely gravity-powered event.

“It’s about bumping the terrain and working the corners,” Newpher said. “Carrying speed is the name of the game. Skills really come into play over fitness.”

He said big prizes, including some from GoPro, await winners.

Registration will be available from 9 to 11 a.m. at Steamboat Bike Shop at the base area.