FasterThanStink
Pro
Posts: 1218
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posted June 28, 2006 08:08 PM
Nissin Front Master Cylinder Size
Does anyone know the size of the stock Nissin front brake master cylinder on the ZX-14? I was thinking of installing a Brembo 19x20 master cylinder to get a firmer lever feel but I need to know the stock size before proceeding. Google searches and the factory manual have proved unsuccessful.
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Speed has never killed anyone,
suddenly becoming stationary...
That's what gets you.
   
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swainic
Novice Class
Posts: 57
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posted June 28, 2006 08:42 PM
Usually the bore size of the master cyl is marked on it somewhere.
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted June 28, 2006 11:00 PM
WTF?
I thinks the front brake is purrfect!
With the lever adjusted out, it seems pretty responsive IMO!
Best brakes I've ever had!
You sure you need more, and more aggressive front brakes next time around?
Did you get a new bike, or are you fixin the crashed one?
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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zxlnt
Needs a job
Kawpuke Extraordinare
Posts: 2853
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posted June 29, 2006 04:04 AM
Firmer lever?? Damn I have mine adjusted in as far as I can get it to keep from being so ham handed on the brakes...
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FasterThanStink
Pro
Posts: 1218
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posted June 29, 2006 09:36 AM
quote:
WTF?
I thinks the front brake is purrfect!
With the lever adjusted out, it seems pretty responsive IMO!
Best brakes I've ever had!
You sure you need more, and more aggressive front brakes next time around?
Did you get a new bike, or are you fixin the crashed one?
You misunderstand grasshopper. Bigger master = more effort on the brake lever for a givin amount braking = less responsive brakes. Still the same power available, you just have to squeeze the lever harder. I'll agree they are the best brakes ever but for my taste I would like a firmer lever. It just depends how you like your bike set up.
____________
Speed has never killed anyone,
suddenly becoming stationary...
That's what gets you.
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted June 29, 2006 10:33 AM
 Edited By: dubious on 29 Jun 2006 11:34
If you go to a larger master cylinder, it will move more fluid for the same lever travel.
More fluid, will move the pads quicker and farther = more responsive, less progressive, easier to lock up! 
Have fun!
Grasshoper! 
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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TJ
Zone Head
Posts: 604
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posted June 29, 2006 10:39 AM
If you want your brakes to have LESS power, just buy some EBC brake pads 
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FasterThanStink
Pro
Posts: 1218
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posted June 29, 2006 12:12 PM
quote:
If you go to a larger master cylinder, it will move more fluid for the same lever travel.
More fluid, will move the pads quicker and farther = more responsive, less progressive, easier to lock up!
Have fun!
Grasshoper!
Hate to disagree but think of it this way. A smaller master is like lower gearing on a car. The lever travels easier but has more leverage. A bigger master is like a higher gear. More fluid moved but harder pressure required to move it. I have changed a front master on a bike with a single front disk from an 11mm to a 13mm master. The 11 was more powerful but required more lever travel. On switching to the 13mm the brake lever was much firmer. It reguired a good squeeze instead of a lot of travel and a light touch.
Still don't believe me? Here:
http://www.yoyodyneti.com/ProductInfo.aspx?productid=10.4760.60
____________
Speed has never killed anyone,
suddenly becoming stationary...
That's what gets you.
|
dubious
Needs a life
Needs more time to ride!
Posts: 8442
|
posted June 29, 2006 07:29 PM
discussions are ok.
Thats how we all learn.
I did not understand the brembo application #'s till you provided the link...
So I learned something new... its good!
brake sensitivity and lever feel are dependant on 2 things, when all other components are same.
Piston/ cylinder diameter and leverage ratio.
Piston dia. is 1st # , the leverage ratio... the second # for the brembo levers.
19x16
19x18
19x20
All have same piston bore 19mm, optional leverage ratio's stiffer with higher #.
Your were asking about cylinder diameter
.... but refering to brembo leverage ratio's in the link , as there is no optional piston size.
For same leverage ratio, same leverage travel,larger master cylinder, will move more fluid making, displacing the slave pistons further, making the brake application more sensitive, and easier to lock up.
We're talking apples and oranges.
You would want to find out what stock piston, and leverage ratio's are before making a purchase.
another communication malfunction on the internet...
Let us know what you find out for size and leverage if you do!
I'll check the bike after work.
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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