According to Bob Radke, trails and open-space manager for Snyderville Basin Recreation, the event is designed to introduce riders to several new features at the park, including the all-mountain trail, which was completed last fall, along with a new expert slopestyle trail and an expanded pump track, which were finished within the past three weeks.
Radke said the slopestyle trail includes jumps and a number of other features.
"We're also working on a line of jumps -- we call them training jumps -- that will be completed by Friday," he said.
When the funding is available, Basin Recreation would also like to add a new flow trail and rebuild the skills park that is now about 10 years old, Radke said.
"Hopefully we'll get started on these this fall," he said.
Sponsors such as Storm Cycle in Park City, Dakine, Mobius, and others will be at Friday's celebration. Trailside Bike Park is located at 5715 Trailside Drive, Park City.