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PostPosted: Sun May 06, 2012 2:01 am 
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Location: Kent/Leicester - Will be an FZS1000
Just to quickly calculate the stock system on a 9:
2 pistons per caliper side at 27mm each, and one at 24mm, master cylinder is I believe a 16mm piston
this gives a ratio of 31.78, which is interesting as a primary complaint about these brakes is that theres a lot of lever travel, and that calculations shows why that is.


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PostPosted: Sun May 06, 2012 11:46 am 
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You're right - it's the same 5/8" master that's been used on GSXRs since the mid-80s, and is perfect for the Nissin 4 pots
Like you say, 17mm is would give better feel - it would give a firmer lever but still with plenty of feel.
I remember when I replaced the calipers on my EXUP with R1 Gold spots - the lever was horrendously wooden, slightest touch would lock the front

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PostPosted: Sun May 06, 2012 12:28 pm 
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gurninman wrote:
You're right - it's the same 5/8" master that's been used on GSXRs since the mid-80s, and is perfect for the Nissin 4 pots
Like you say, 17mm is would give better feel - it would give a firmer lever but still with plenty of feel.
I remember when I replaced the calipers on my EXUP with R1 Gold spots - the lever was horrendously wooden, slightest touch would lock the front


Wonder why Kawasaki decided to stick a 16mm m/c piston on - seems very strange that they decided to do that.
Also explains why the (I THINK) 17mm aprilia mille m/c feels better on the Tok calipers.
Bit I'm not quite sure of though now is why the 17mm m/c doesn't feel good on my nissin 6 pots, having read that website now though I'm almost inclined to think it may actually be slightly too large, so I want to try out a slightly smaller one (16/16.5mm). Pretty certain the more recent R1s and R6s radial m/c are 16mm so that's a good possibility, want to find out what Trev's Aprilia Mille one is though as I'm assuming that doesn't have clearance issues with the clocks, whereas I don't know about that on the R1/R6 m/c


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PostPosted: Sun May 05, 2013 11:13 am 
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So do I conclude that a 17mm Brembo MC is the one to look out for?

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PostPosted: Tue Apr 07, 2015 6:43 pm 
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I used to own a 2002 954RR. That brake recipe was spot on fabulous. Best brakes of ANY sport bike I've ever ridden. Had a 2004 ZX10R. Brakes were crap. Not even close to the 954RR. Those 330mm rotors on the 954 and HRC pads were awesome. Should of never sold that 954.

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PostPosted: Sun Mar 20, 2016 2:15 pm 
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Bit of a blast from the past but were there any issues in doing this mod with the m/c touching the clocks? (or has anyone else found this).

Looking at putting a radial on my E, found one I had knocking around in the garage (Nissin 3/4", looks like a Suzuki one) but it hit the clocks so had to take it back off. Will get an Aprilia one if there's no clearance issues?


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PostPosted: Fri Jul 08, 2016 3:36 pm 
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Take it no-one else has put a radial on then! :lol:


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PostPosted: Sat Jul 09, 2016 8:37 am 
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JoeRock wrote:
Take it no-one else has put a radial on then! :lol:


Looks like a good upgrade... off to find an RSV MC on ebay now!


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