January 5, 2026 · 2 min read

How to Choose a Bike Saddle — Width, Shape and Setup

The saddle is the most personal part of a bike. A good saddle is one you forget about after 10 minutes of riding. A bad one means that after 30 minutes you can only think about one thing. Choosing a saddle starts with measurements, not with opinions on the internet.

Sit bone width — the starting point

The sit bones are the two bony points that carry your weight on the saddle. Their spacing differs for everyone — from 100 to 150 mm. The saddle needs to be 20–30 mm wider than your sit bone spacing, so the bones rest on the saddle's platform rather than on its edges.

How to measure? Sit on a piece of corrugated cardboard on a hard surface, with your knees pulled up higher. The two dents are your sit bones. Measure the distance between the centres of the dents.

Saddle shape

• Flat — restricts movement less and lets you change position. Preferred by road cyclists and triathletes in an aggressive position.
• Rounded — more support, a more stable position. Better for an upright position (MTB, gravel, touring).
• With a cutout/channel — reduces pressure on soft tissue. If you feel numbness in the perineum, a saddle with a channel may solve the problem.

Saddle setup

Height

Foot on the pedal at its lowest point — knee slightly bent (a 25–30° knee angle). Too low: pain at the front of the knee. Too high: rocking hips, pain at the back of the knee.

Fore-aft position

Pedal at 3 o'clock (horizontal) — a plumb line dropped from the kneecap should fall through the pedal axle. It is not an absolute rule, but it is a good starting point.

Tilt

Start level (0°). A slight nose-down tilt (−1 to −2°) reduces pressure on the perineum, but too much tilt makes you slide forward and puts too much pressure on your hands.

When to see a professional?

If a new saddle is still uncomfortable after 2–3 weeks of riding — do not try more models blindly. A professional bike fit takes into account your flexibility, body geometry and riding style. One measurement solves more than five rounds of trial and error.

How much to spend?

A good saddle costs €50–120. Above that you pay mainly for weight (carbon, titanium). Comfort does not rise in proportion to price — a €60 saddle that fits your anatomy is better than a €250 saddle that does not.

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