thought about it...
I don't want to change forks after all the work I put into them, and I am pretty sure I can't bolt on another stock disc and caliper to the right side (could be wrong on that though). EBC disc is first upgrade on the list w/ SS braided lines and that should do the trick. If not, I revisit the dual disc option I guess.
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I sponsored a thread on this some time back and here's some interesting conclusions. THe total braking force is determined by the master cylinder. It will push so many PSI and that's that. Whether you have 1 disc or 2 will not increase the 1 time stop only power. Having additional components spreads the available PSI out over more pad surface, so you reduce wear, heat, fading, fork flexing, increase symmetry etc. The respondents to my thread confirmed this with lots of engineering equations which went way over my head.
In reverse, which was the question I had posed, if you have 2 solid discs, why doesn't drilling buku holes in them decrease total braking force? It does not because the MC PSI didn't change.You have less surface area to distribute PSI, so pad wear will increase. But the MC output was the same and the output doesn't disappear just because you drill holes in the discs. It just concentrates on less surface area.
So back to you (and me for my next project) if you maximize the ability of one rotor, you may have good results. SS lines, good pads, upgrade the rotor, maybe treat it cryogenically. Install a fork brace for the fork flexing issue. If you're running a 4 hour endurance race on a track, you'll melt one rotor into oblivion. 2 are needed, with multi piston calipers. But not for stopping force, for the other issues of endurance. For occasional hard stopping, one really good disc should be fine.
But the point is, you won't increase absolute stopping power by the dual disc setup, unless you increase the output of the MC. Messing with MC output has problems of its own with feel, progressivity, etc.
