My sit bone measurement is 125-130 and I am on a Drakon on my roadie and a Lite 209 (more padded version of Drakon, essentially) on our tandem. LOVE them both. These saddles have been game-changers for me. I no longer am getting chafed and pinched to the point of drawing blood, nor dealing with any numbness or need to squirm around on the saddle. I am having to develop new sit bone toughness, since my weight is being born further forward on my sit bones.