XJR1200 Modified to 1300. Rear Brake Not Responsive

The rear brake feel is a bit off, so I’ll check it out.

The rear brake disc runout was not a problem.

Even after bleeding the rear brake, there wasn’t much change, so I’ll check the rear caliper.

When I removed the rear caliper and checked the piston operation, the seals are still new so they haven’t seated yet.
For example, even a brand-new caliper is the same.
After bleeding and doing some persistent massaging, it improved quite a bit.

There’s a slight seep from the rear master cylinder, so let’s replace it!

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