i have 1 inch tracker bars

[jeffh]

i have 1 inch tracker bars on my 1981 xs650 and have 2011 harley davidson flxh clutch and brake perch. I want to get a banjo bolt pressure switch but have no idea what size to get. Also do i need to switch out the brake line to accept the new style banjo bolt. Thinking of getting the pressure switch from motorcyclesuperstore.com but have no idea on the size please help me.
Thanks ahead of time
Jeff H