SOHC.co.uk Forums > CB500/550
Can't fit rear brake in drum after fitting news brake shoes
Bryanj:
The cms link you posted says they are 750 by the part number, when fitted use a tape measure to measure the diameter of the shoes, there is also a max dia cast inside the drum.
Also has it been relined and machined too small?
Oddjob:
I'm wondering IF the rear drum has been replaced by a previous owner as the 500/550 drums are renowned for cracking, maybe something like a CB500T was used instead.
Any pics of the inside of the drum and the drum in general Alex so we can see if it looks correct.
McCabe-Thiele (Ted):
Would the inside diameter of a 500 brake hub be handy - it's just slightly under 18.0 cm between the inside edges of the liner measured with an expanding ruler. That probably 17.98 -17.99 cms.
Amended I can't read my stupid tape measure.
Oddjob:
Stamped on the inside of the hub Ted
McCabe-Thiele (Ted):
If that's the case Ken then Alex should easily know if he has a 500 hub.
Only markings in my hub are E-7 & opposite B 1 3
My error it 18.0 cms less a tad not 8!
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