Moved the drivers seat back by about 40 mm (1 3/4 inches). I am 6'4" and needed a little more leg room. It was easier than I thought; I just put the old bolts back in their holes and drilled new holes back as far as I could; you can't go further as there is brace across the pan underneath that would block the bolts. Its cold out here so I couldn't paint or prime the holes I drilled. I'll have to take it apart in the spring and do that.
The extra bit of leg room is perfect.
The extra bit of leg room is perfect.