BiSaddle Setup For Men
This is a closeup of the male pelvic girdle showing the specific bones on the bottom. The ischiopubic rami form a V shape and become the Ischial Tuberosities in the back (posterior). The angle of these bones averages between 50 and 60 degrees for men. They may vary somewhat with one side further from center than the other. A standard saddle provides no capability for customizing the placement of riding surfaces directly under these bones.
The point at which the ischiopubic rami join is called the pubic symphysis (pubic bone). Beneath the pubic symphysis is where the Dorsal artery and vein extend to the male genitals from the perineum. This artery and vein is what can get compressed by a standard saddle. The perineum is all the area between the ischiopubic rami. Putting pressure on this area can contribute to or exacerbate prostate problems.
This is a picture of a male showing the pelvic girdle as a skeleton overlay in the proper body position. When you are riding a bicycle, the bones on the bottom of your pelvic girdle support most of your body’s weight, with the remainder supported by your legs and arms/shoulders.
Male pelvic girdle on regular bicycle saddle (rear view).
The main problem of a standard saddle is the compression of the Dorsal vein and artery that go from the perineum, under the symphysis of the ischiopubic rami and into the genitals. By compressing this artery and vein you can experience numbness and potential impotence.
The specific contours of a standard saddle can put pressure on nerves and blood vessels that run along the inside of the ischiopubic rami. Increased pressure can also be caused by having a saddle surface that is too soft, allowing the rider to sink into the surface enough to put pressure on these vessels.
Male pelvic girdle on Bycycle Inc. saddle (rear view).
As you can see, the Bycycle Inc. saddle is designed to support the ischiopubic rami and Ischial Tuberosities. The contour of the saddle surface approximates that of these bones. For men, the surface portions can be separated by a gap of up to 3/4 inch to insure clear passage of the Dorsal artery vein and nerves. While the surface positions can be set to touch in the front, this setting is not recommended for men.
The slope of the back of the surfaces forming the ridge is designed to support the Ischial Tuberosities and the associated muscle mass on either side. The “durometer” or hardness of the surface is designed so that you don’t sink into the surface, causing pressure on arteries, veins and nerves that run along the ischiopubic rami.
Male pelvic girdle on Bycycle Inc. saddle (front view).
Male pelvic girdle on Bycycle Inc. saddle (side view).