smaller brake master cylnder

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18 Jan 2012 11:02 - 18 Feb 2013 18:40 #498637 by martin_csr
Replied by martin_csr on topic -
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Last edit: 18 Feb 2013 18:40 by martin_csr.

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18 Jan 2012 11:17 #498638 by Flyndrive
Replied by Flyndrive on topic smaller brake master cylnder
So will one made for dual disc not work for a single disc? I have a single front brake.

1980 KZ 550A1
1985 GPZ 900R

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18 Jan 2012 11:40 - 18 Feb 2013 18:40 #498639 by martin_csr
Replied by martin_csr on topic -
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Last edit: 18 Feb 2013 18:40 by martin_csr.

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18 Jan 2012 14:45 - 18 Jan 2012 14:51 #498666 by steell
Replied by steell on topic smaller brake master cylnder

martin_csr wrote: You can use the Fr Br mc from just about any Japanese bike, including Hondas, just so long as it meets the basic criteria for your model: 7/8" bars, mount angle, single or dual disk, mirror orifice. Some modern mcs don't have a hole for the mirror. As Patton alluded to, dual disk bikes have a 5/8" piston bore (or ~16mm) while single disk bikes have a 1/2" bore (or ~12-14mm). With an alternative mc, you'll have to splice the brake light wiring... no big deal.


That only applies to Kawasaki, and maybe only the KZ models, other makes/models may use different size master cylinders.

I posted a chart showing different master cylinders with different calipers, showing the pressure generated. I'll see if I can find it again.

Found it:

These are all dual disk setups, look at the different master cylinder sizes.



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KD9JUR
Last edit: 18 Jan 2012 14:51 by steell.

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