Master cylinder identity??

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V4beermonster
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Master cylinder identity??

Post by V4beermonster »

Hi all just about to order a repair kit for my front master cylinder, all the kits listed for the nc30 are 12.70mm OD. But my road bike one is stamped 5/8. And this one is stamped 14? Any ideas ?
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Re: Master cylinder identity??

Post by CMSMJ1 »

14mm is std NC30 m/c size
5/8 is better used on the lager Nissin calipers, or the brembos

not sure where the 12.7 is - I have not replaced these seals on my bike, which is a surprise to me.lol
IMPERATOR REX ANGLORUM

The V4 is the law..

NC30 - No9 - my old mate
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Re: Master cylinder identity??

Post by V4beermonster »

Right that's good to know will query it
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Re: Master cylinder identity??

Post by V4beermonster »

Does anyone know the correct dimensions?
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Re: Master cylinder identity??

Post by speedy231278 »

Maybe it's the internal diameter of the 14mm seal?
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Re: Master cylinder identity??

Post by speedy231278 »

Looking at the dimensions listed here, I wonder if it's actually the diameter of piston? You'd need some clearance between the piston and the bore to allow for the seal....

http://www.stuff4bikes.co.uk/front-brak ... 2521-p.asp
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Re: Master cylinder identity??

Post by V4beermonster »

Just checked the bore of the cylinder it is 14mm OD any ideas
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Re: Master cylinder identity??

Post by thunderace »

Conventional wisdom says to know your limits. To know your limits you need to find them first. Finding your limits generally involves getting in over your head and hoping you live long enough to benefit from the experience. That's the fun part.
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Re: Master cylinder identity??

Post by V4beermonster »

Here
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Re: Master cylinder identity??

Post by V4beermonster »

Ok David silvers just checked the sizes, standard nc30 kit is 14mm OD x 50.5mm so don't know what they are selling on ebay

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