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Hello Guys,

there is a deal on ebay for a complete Kit Discacciati Brake + Clutch for 420 Euro. It is Ø19 on the brake side and Ø16 for the clutch. JC in one post mentioned that he is using Ø20 for the brake MC. Is Ø20 compared to Ø19 a huge difference or is it ok? I am thinking of replacing the original Brake system step by step with discacciati.

Andreas

Kit Discacciati Brake + Clutch Pompa Freno Radiale 19 + Frizione 16 radiale | eBay
 

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a 19 would be fine not a huge difference
20 is OK but I think they have stopped making the 20 and only offer the 19 now. Best to stay with what they can support for the future

Hello Guys,

there is a deal on ebay for a complete Kit Discacciati Brake + Clutch for 420 Euro. It is Ø19 on the brake side and Ø16 for the clutch. JC in one post mentioned that he is using Ø20 for the brake MC. Is Ø20 compared to Ø19 a huge difference or is it ok? I am thinking of replacing the original Brake system step by step with discacciati.

Andreas

Kit Discacciati Brake + Clutch Pompa Freno Radiale 19 + Frizione 16 radiale | eBay
 

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there is a deal on ebay for a complete Kit Discacciati Brake + Clutch for 420 Euro. It is Ø19 on the brake side and Ø16 for the clutch. JC in one post mentioned that he is using Ø20 for the brake MC. Is Ø20 compared to Ø19 a huge difference or is it ok? I am thinking of replacing the original Brake system step by step with discacciati.
the surface ratio between the master cylinder and the calippers is quite
important, it is not advisable to change anything to it without knowing
what is going on then.

if you run the stock Sport Classic calipers, it is not a good idea to upgrade
the existing 16mm ( ? ) master with a bigger one.

the Ducati 1098 in example, with its huge P4 34/34 calipers, has got a 18mm
master only.

it might be a good idea to do some calculations at first, to get an idea where
your current surface ratio is at, and where you would end with a master
cylinder of 19mm then.

let us hear the results, surface ratio in mm is = r² x Pi
you want to add all the calipper pistons into the ratio calculation then.

:)
 

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I've had the 19, 20 and the 18
For the 4p4p Brembo, Stock calipers and then the Discacciati 4p4p
The feel was all about the same with varying degrees of control and feel
I am now using the RCS 19 with Brembo 4p4p
quite nice.
 

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let's get that straight:

stock SC calippers and either 19 or 20 mm master : bad idea

P4 30/34 calippers and 16mm master : good idea

P4 34/34 calippers and either 18 or 19mm master: good idea

:)

if the master cylinder is too big for the calipper piston surfaces,
the lever feel tends to be "wooden", whereas a too small of a master
cylinder will give a "too sharp" braking effect.

:)
 

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many have run the Radial pumps with the stock calipers with no ill affects
It will work without any issues
But I do highly recommend doing the Pumps and the calipers together
 
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