EVO All Evo Model Discussion

Master cylinder bore

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Old May 23, 2012 | 11:02 AM
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Exclamation Master cylinder bore

hey there guys, I know I've been kinda lost for a long while but I'm back!
I have a project that I wanna start working on.
It involves the front brake relocation.
Yes, I want to have a cable operated hydraulic front brake to give the bike a more vintage look.
I'm looking at using the rear master cylinder of a sportster because I have a fair idea of how to create the actuating parts to adapt the cable.

I'm not sure about the bores, do u guys think it will work on a single disc 95 fatboy?
 
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Old May 23, 2012 | 04:10 PM
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Bore wants to be the same as the stock front brake or you might hurt yourself badly.
 
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Old May 23, 2012 | 05:45 PM
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do u happen to know what the front brake's bore is? is it 5/8 or 11/16?
 
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Old May 23, 2012 | 07:11 PM
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5/8 for single disc I believe.
 
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Old May 23, 2012 | 08:25 PM
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Originally Posted by Nautilus
do u happen to know what the front brake's bore is? is it 5/8 or 11/16?
86-95 5/8" Single, 11/16 Dual
96- Present 9/16" Single, 11/16 Dual ( Big Twins )

I believe in 04 the Sportsters with the new Nissin have a front master with a 1/2" bore for a single and 14mm for a dual. M/C will be stamped with the bore size.
 
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