Sit Bone Measurement and Saddle width system

gallery/sqlab-sit bone measurement_saddle width system

A saddle should fit like a pair of shoes! If a saddle is too narrow, it creates pressure precisely where there shouldn’t be any. In 2002, SQlab became the first saddle manufacturer to introduce a system to measure the distance between the sit bones and to calculate the optimal saddle width.

The concept has taken off since then. It’s difficult to imagine a cyclist these days buying a bike saddle without knowing his sit bone measurements.


All SQlab saddle models are available in up to four different widths. This guarantees that your sit bones lie completely flat on the saddle. This is the only way in which pressure is relieved on the sensitive perineal area in men and on the pubic arch in women, which is generally lower than in men.

Our specially trained dealers offer a free onsite “sit & fit” sit bone measurement to determine the optimum saddle width. This takes into account factors such as the sitting position, the position of the pelvis on the saddle and the type of riding activity. The measurement takes an imprint of the location of sit bones on a so-called measuring board (corrugated cardboard) or with our new system of a knob plate and measuring paper, in which plastic studs leave an impression on the paper when sat upon. Our dealers are specially trained and have lots of experience advising on saddles and the ergonomic optimization of contact points.

The effective saddle width

The specified saddle width is always that of the effectively useable area for sitting on, not the total width of the saddle. With all our SQlab saddles, the effectively useable area is maximised and as little as possible of the saddle width is sacrificed through a strong curvature.

This is how you can check your saddle width:
Draw a projection line across the widest point of the saddle. The useable width is from those two points from which the saddle curvature drops off by more than 1cm on either side.
This measurement method has been adopted by cycling magazines that measure the saddle width in saddle tests for comparison.

gallery/sqlab-efective-saddle width
gallery/sqlab-efective-saddle width2