Rear brake pads replacement

Sorry - only a source in Germany - pads only €30: Brembo BREMBO BREMSBELAG ORGANISCH, ABE, 07BB0407

this is actually a common instruction with many manufacturers IMHO. But if you don't want to do it, then just don't do it! Brakes are for your safety just not quite unimportant and therefore I can understand the instruction already. The question is rather: how do you get cheap to the pin You don't have to do this every week...

If the pin doesn’t have any grooves worn in then let it ride. I’m almost positive there is a source stateside for pads only.
My Beta uses nissin calipers and they cross over to multiple bikes. I use Yamaha pads, same spec.