I took this off a new build...I was told by the builder he only rode it around the block a few times.

Distance between 2 bolts at rear of seat is  8 1/4".
Distance between 2 bolts at front of seat is 3 1/2".
Distance between bolt at very front and rear is 9 1/4".

Seat is roughly 12" wide at widest point by 14" in length.

Let me know if you need pics with a measuring tape.....I DO NOT accept returns.

Thamks!