https://www.facebook.com/pages/RCSho...13498721997258
I think he said per set, so 2x pistons I think. Although, "pair" should mean 2 and a "set" should be 4.
When you buy a set of tires for your real car, that is 4 tires and a pair is 2. Unless you say, I want a set of rear tires, then that is 2 because you ware only referring to the rear tires. Unless you have a dually, then it is 4 tires for the rear set.....