Some thorough scrutiny of the FAA "rules" when you are the STC holder or the PMA holder may well prove worthwhile.
Ah Leadie, therein lies the rub.
The outfit making the brake kits for Tigers the past 20 years doesn't have PMA or STC (wildly expensive to get, so went the individual EO way), and I'm sure that the manufacturer of the motorcycle brake parts used doesn't have PMA or STC either.
So it seems to be go the expensive E(C)ASA compliant way or go home.
Not saying the non E(C)ASA compliant way to go is, but when a simple system has been working trouble free for 20 years, saving untold damage and injury, these new rules appear to have the effect of chucking the baby out with the bathwater.
Cheers