Approximately 500 participants on Saturday & 250 participants on Sunday. Event hours 8:00am-5:00pm. Mountain bike races for junior high and high school students using the Granite Bay multi-use trails. Granite Main Beach will be highly impacted by the event and the trails will be highly impacted. Please consider riding at Sweetwater Trail or Darrington Trail if not part of the event for this weekend. Spectators are encouraged to park at the Granite Bay Stage 4 parking lot. There will be amplified sound, tents, tables, portable toilets, EMS on site, and vendors.