BP4 SDG standard rear brake pads.
STANDARD SDG REAR BRAKE PADS AS FITTED TO SDG REAR BRAKE ASSEMBLY. WE ALSO SELL A SINTERED VERSION IF YOU WANT A LONGER LASTING AND STRONGER BRAKE. PADS ARE 41mm WIDE, 45mm TALL, 28mm BETWEEN MOUNTING HOLES. THESE PADS CAN BE BLUE OR BLACK.