There's always a pit area.
At Mountain Mayhem and SITS they provide a marquee for solos.
At others it's just a roped off area.
Some events like Bristol Bike Fest, people tend to set up their own pit anywhere near the start and finish line.
At Set2Rise it was possible to park right alongside the course.
Proper pit areas can get crowded, especially at Bristol where the team handover area inevitably spills over in to the solo area.
I generally find someone who has set up there pit away from the busiest area, then ask their pit bitch if they'll keep an eye on my stuff while I'm racing.

