Claims vary between 25% and 35% I think. I measured a before and after on my own cylinder and lever pressure reduced from 10kg to about 7kg, using a spring balance. There is a mechanical consideration to bear in mind in that because your master cylinder is still only displacing the same amount of fluid, you do lose some travel on the slave cylinder. ie you won't be pushing the push rod as far. Some of the cylinders claiming to be really light, could result in clutch drag?? There is another cheaper solution to the leaking piston, especially if you're happy or don't too much of a problem with a heavy lever. Replace it with an Evoluzione piston. These have an improved seal design and are a straight drop in mod. |