Topic: CB750F rear caliper compatibilty, 1976 vs 1977

[karl]

Can a 1977 CB750F rear brake caliper be put on a 1976 CB750F?

The 1976 caliper has two pistons, the 1977 has one.  The basic
dimensions of the calipers look the same - they both sit between the
hub and frame, and bolt to a torque arm in the same place, but there
could be minor differences or the disc could have a different offset.
I don't get how the one-piston caliper works, since there's no float
between the hub and frame - maybe the B caliper floats?

Here are the part numbers, just in case:

Caliper Assy, RR 1976
43200-392-005 (replaces 43200-392-006, 43200-392-016)

Caliper Assy, RR 1977
43201-410-026 (replaces 43100-410-006, 43100-410-016)

[bryanj]

Dont think its an easy swop, the one piston caliper slides on its mounting bolts and the mounting bracket is different

[Steve F]

Don't think so since the '77 used comstars, the rotor offset was different, and the rotors on the '77 used (I think) 5 bolt pattern.