hey,
i am about to put GSX calipers on my RS.
my master cylinder is going out. my question: since i am going to put GSX calipsers, should I get master cylinder from GSX or from RS? or they are the same? ( i doubt cuz RS has no ABS) what you guys think? 10x

I say stick with the RS master cylander. I would think they are the same. If not other item may need to be changed too. If you want to find out if they are the same just have a parts store run the numbers on em.

"To strive to seek to find... and not to yield."
Michael

Firefly:
Mal: You don't know me, son, so let me put this to you plainly: If I ever kill you, you'll be awake. You'll be facing me. And you'll be armed.