yashica4life
TPF Noob!
I think the slow shutter/flash technique was the one used. That would be alot easier than trying to photoshop that. And I think it is probably very dark, I've seen lots of Mountain Bike, Bmx, and Skateboard footage where the people are riding in the dark.
Like that, that is not photoshop it is just certain usage of the flash, and it is very dark out.