Hello:

I am interested in purchasing a specialized romin saddle.

I measured my sit bones and found the center of my sit bones measure 111 mm (center to center) and the outer edges of the impression measure 168 mm (outer edge to outer edge). I've heard you need to size up on the Romin, so I'm looking for a recommendation on what size would be appropriate for me the 143 or 155?

Thanks,

LD