[Steeve19M5CP]

Originally Posted by stbm5

i just heard from the folks at porterfield. they will do custom r4s pads for the f90, same price as the ACG pads. they also said they plan to offer pads non-custom which will be a little cheaper but that they wont go into production until june or july. i had the r4s on my f82 and they were great.

https://www.porterfield-brakes.com/c...reet/R4-S.html

https://www.porterfield-brakes.com/i...6_02_45_30.pdf

Ok Porterfield makes the pads for ACG so you can buy from either place right now (R4-S)

The rear pads prototype defect is being corrected