I was just looking on the redcat site and putting a list of items together that I should keep on hand. Someone above listed dog bones. When I look through the list is find 2 different ones.
Dogbones 90mm
Partno: 08029

Dogbone 61mm qty 2
Partno: 02003

As well what is a:
C-Hub
Partno: 02015

I noticed alot of different size screws on the site. Should I keep some of these on hand as well? If so which are most likely to come off of my tsunami?

Thanks