Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > General Motorcycles only > Is a Radial master NEEDED to get the best from radial calipers?

[Shazaam!]

Frank,

The Supersport (and 748, Chris) brake master cylinder is 16mm and is not a good hydraulic ratio match to the Brembo 4 pad calipers. The 749/999 radial master cylinder is 18mm and would be a good choice— any 18mm actually.

Radial pumps actually don't offer better stopping power, so a conventional 18mm unit will also work well.