[Shop-talk] Converting a bubble flare to a bleeder port?

[Jim Franklin]

I have a Moto Guzzi that had linked brakes, with the rear pedal operating the rear caliper and one front caliper via a length of tubing. I'm converting it to normal operation so I need to cap off one of the ports on the splitter connected to the rear caliper. From what I've read European braking systems use a bubble flare on their tubing- a one time use flare that crushes to conform to a concave bottomed hole.

I figured I'd plug the unused hole with a bleeder so I can easily remove any air that's in that half of the splitter, but I don't know if a normal conical bleeder will seal against the bottom of the splitter. Does anyone know? The other option is to just cap it off with a bolt and crush washer but it's not as elegant. 

thanks,
jim

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