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Discussion Starter · #1 ·
I am replacing the 5/8 inch bore brake master cylinder on my Jago T bucket and I have noticed some for sale which measure 3/4 inch which are a fair bit cheaper. Would changing the bore cause problems with my system? It has Anglia 105e drums at the front and Cortina mk1 drums on the rear. Thank you.
 

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My name is Martin
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Going from 5/8's to 3/4 will increase the fluid output by 44% and therefore make the pedal shorter by about 30%
 

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It will shorten the pedal stroke (less feel/harder pedal) and need more pedal effort for the same stopping power.
He's right you know ! /\ 3/4 is designed for disc / drum set up and will , due to decreased line pressure make you brakes worse.
 
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