by Ed Pavelka of www.RoadBikeRider.com

Since the late 1990s, saddle design has seen major innovation.

A big impetus came from a prominent doctor's contention that sitting on a bike seat might lead to damaged nerves or blood vessels in some men. This risk, plus the occasional bout of temporary genital numbness that many riders experience, put designers into action.

The result is a new generation of saddles with special shapes, padding or cutouts to reduce crotch contact and pressure. As a side benefit, riders have found that they experience fewer saddle sores on these seats.

Saddle selection is highly individual. Despite how effective a saddle might look or how highly praised it might be by a riding buddy, there's no guarantee that it will be comfortable for you. You need to ride it to tell.

Here are some selection guidelines, followed by two things you must do to further reduce risks and discomforts: (1) develop a good riding position, and (2) use smart riding techniques. see saddles

Saddle Selection

Width. Squat and sit on a low stool or curb. What you feel supporting your weight is your ischial tuberosities, the points of the pelvis that are commonly called the "sit bones." These are what should support your weight on a saddle.

A seat that's too narrow will place your weight on the soft tissue between your sit bones -- for men, on the perineum where the penile nerves and blood vessels are located. Women also need to put a high priority on width because, on average, they have wider sit bones than men. Anatomically designed women's saddles are a bit wider in the main sitting area.

Curvature. Looked at from the rear at eye level, a seat should be flat or only very slightly domed. A significant curve causes your sit bones to be lower than the saddle's center, contributing to crotch pressure.

Dip. Looked at from the side at eye level, a seat should be nearly flat from nose to tail. A slight dip (say six degrees or less) is helpful to give you a feeling for the saddle's center while riding. More dip creates positioning problems. That is, when the nose is set level, the tail sticks up and may be uncomfortable to sit on; when the tail is set level, the nose goes up and exerts pressure right where you don't want it.

Padding. Some is good, more is not better. You want enough foam or gel to cushion your sit bones for comfort. Thick padding can actually increase crotch pressure because as your sit bones sink in, this has the effect of making the center press upward.