I just installed the ISCI floorboards and have a few observations/suggestions. First, the parts are well engineered and and are high quality. If you have access to a floor jack and jack stands, the process is a heck of a lot easier as you don't have to remove any panels, and you can see what you are doing much better. I think the 65mm bolt supplied to take the place of the much longer original bolt on the brake side needs to be longer. After getting that bolt reassembled through the brake pedal and sticking out through the support casting I measured it in relation to the machined hole in the floorboard bracket, and found it to only go about half the length. While this may have been enough, I chose to get a longer bolt.
On the other hand, the 6mm button head machine screw, that attaches to the footrest, and is used in the floorboard bracket is too long. When tightening this screw, it hit the end before being fully tight, and when I tightened it with all my might, the screw broke. fortunately there was enough to grab with vice grips and get the broken end out of the bracket. It was replaced with a shorter screw and it snugged up much, much tighter. I cut off about 1/8 inch on the button screw on the other side and it did fine.
The most difficult part was getting the spacers/washers on either side of the bushings in the brake pedal in place as there is minimal room and they had to be pushed into place with a knife blade.
Another observation is that if you put the floorboards in the lower of the 2 position options, it sits a great distance below the brake pedal, and you really have to raise your foot up a significant distance to reach the pedal. I am 6'4" and found it ergonomically challenging. I chose the higher position for the floorboard on the brake side and the lower position on the left side. The discrepancy is not visible, since you can't see both floorboards simultaneously, except from above, and it is barely noticable (to me) sitting on the bike.
All in all I am pleased with the outcome, but the installation was more challenging than I expected.
