Topic: Finally . . . the seized brake piston is unstuck

[Stev-o]

Late Edit:  The back drum brake on the CB750 is working extremely well. Quick response and strong stopping power.  Very pleased! 

Even though the rear brake seems to be working well, I would disassemble and check/replace the rear shoes since the bike has been sitting for 9 years.  The brake lining has been known to come free of the metal shoe [most are just glued on]

On one of my project bikes, the shoes were a bit worse than expected!

[kyle750]

 I will need to remove the rear wheel hub when assembling the new DID rim, spokes, and tire.  I will be sure to inspect the rear drum brake shoes at that time.  Probably would be best to just go ahead and replace the shoes just to be safe. Living in Thailand I have seen really bizarre things happen to glue.  I wear fairly expensive running shoes that I buy ahead of time (hard to find large size shoes here in Thailand).  Shoes were never worn  and when I went to put them on the glue on the soles just disintegrated and they fell apart. Never seen anything like it.   

[PeWe]

My CB750 K2 with a new David Silver rotor described to be improved. New caliper and MC work fine in legal speeds. EBC FA12V orange pads.

Not much faster for an almost safe stop. Need to be alert and see problems in time, before they happen. Use gearbox too.

My K6 has same rotor but 2 of them, same  DSS MC. Stock calipers.
This stops good enough in higher speeds with DSS low priced pads.

I have read about guys here with good single front brake and stock rotor. Maybe different MC only or a caliper too.

https://good-bits.co.uk/product-category/braking/
I see now that they have a caliper bracket for K3-K6 fork lowers (marked 341 on inside) to use AP racing caliper.
Maybe they can do for earlier forks too.