I have a GL1800 with the Motor Trike kit. My wife, being vertically challenged, finds the stock passenger floorboards to be too low to be comfortable. I tried to get a set of risers that replace the stock floorboard with a narrower one that has a swivel-up peg on the outside, but it has been discontinued due to a NHTSA recall. I ordered a different kind, made with a pivot bar that fits on the inside of the floorboard instead of the outside, and does not replace the stock floorboard. This one works fine and would be great for a two-wheeled configuration, except that it moves the floorboard too far out. You have to fold the floorboard up to install it and then it rests against the fender long before it is level and in the correct position. I finally installed the swivel bracket and the peg and just left the stock floorboard off, so now all she has back there is the peg.
Just wondering if anyone knows of an aftermarket floorboard that is about 1½" or 2" narrower than the stock floorboard, or if there is another solution out there that I missed.