Hello, I looked in here, didn't see exactly what I was looking for. I need to replace the buttons on my brake discs. I was told that Brembo discs use 5mm buttons. The person I found (with an awesome price!) has a no return policy. I don't want to wait until tomorrow to call the BDM shop. Im not exactly sure where to measure on my buttons to see what size they are. Do I have Brembo discs? If so, do I use 5mm buttons or another size. Thank you.