From what I was told by one of the girls involved, DTC stands for “Dong Thong Crew”. I’m not sure if it was a joke, or if that is actually what it means. That’s about all I have to add, I’ll let rider/editor Theresa K handle the rest:

“If you love bikes, babes and especially babes that ride bikes you’ll love this edit.
We like to refer to ourselves as DTC, and we are made up of two cold-blooded girls from Massachusetts and two sizzling hot Floridian girls who probably like to ride gators in their free time because Florida.
We managed to all get together for a week-long bmx trip in Florida and had an absolute blast riding together for an entire week and competing in the first ever girls class at the Merritt competition in the Florida bmx skatepark series.“- Theresa K