The assembly is held on with a spring clip and easy to remove if you want to modify it. It would be easy to make it wider towards the left.
If you made it longer towards the rear it might have too much swing and hit the floor board when you try to shift.
Personally I cut off the heel shifter. Im use to riding with just the toe shifter so I never used it, and I kept stepping on the heel end moving my foot around when I didnt mean to.
Last edited by KCW; 05-23-2017 at 08:58 AM.