Rear Brake No Pressure

[BILI]

2013 1200RT

Noticed rear brake was low and getting spongy, little braking force.

Rear brake pads were pretty worn (one was at around 2mm/less than 1/8"). Fluid level in reservoir/master cyclinder was low/dry.

Changed pads (easy job), brake still soft and goes to the bottom. Thinking air entered system because fluid level dropped so low.

Attempted to bleed air out, but same results.

Anyone know how to properly bleed the rear brake?

I'd appreciate any input.

Thanks,
Billy

[White Knight]

This is just one of many to be found, lots of China stuff. https://a.co/d/6TcBwgt
There are quality brands but they cost more. It will work on brakes and power steering entrained air problems.

[Doctor T]

Same kit ive used for years