Eric Harnish wrote:
When comparing two calipers & the rotors are the same & the pumpingNOT if you still use the same master cyclinder
force of the master cylinder is the same is there a gain if using a
greater number of pistons in the caliper ?
I'm looking at a set of six piston calipers . I measured the pistonThe master cyclinders on the V-Max were probably designed by Barney Rubble!!
area & the pad area & compared them to my stock four piston calipers .
The six piston unit is 4% smaller in the pads & 2% smaller in over all
piston area . The only gain that I can see is the six piston caliper's
pads move about 7% of its pad area further out on the rotor increasing
the lever action . Looks like a wash out to me . Any comments ?
All 4 and 6 piston calipers have a specific master cylinder designed to work with them. When I first used the 4 pot Nissins with the stock master, the difference was barely noticeable, but when I used the proper Nissin master cylinder, my eyeballs hit the faceshield on my helmet.
The multi-pad calipers require less moving fluid, consecuently, less pressure, to be fully activated.
The best master cylinders to use with the 4 and 6 pot calipers, are the Nissin's with the plastic cup on top of it, (I know many of you won't like the look of them) but so far, unless you can get a new unit from a XJR, (like Sam did).
Just don't go out there, bending your forks, after you install them, will 'ya??
Mario
