According to the specifications, SBR16 has a 30mm gap for the screws. Then BKBF has a 48mm gap. How is SBR16 and BK/BF are in the what seems to be 30 profile?
I thought maybe the picture shows SBR10 or SBR12 but then again the numbers do not match.
What profile is this? What do we see in the picture?