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Zeta Saddles

Optima Carbon 145mm Bike Saddle

Optima Carbon 145mm Bike Saddle

Regular price $299.00 USD
Regular price Sale price $299.00 USD
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OPTIMA Carbon is our high-performance saddle — the same sleek, low-profile shape as MODUS, built around our patented Reactive Padding™.

Contact pressure, friction and the ground reaction forces travelling up through the bike all build over the course of a ride. Reactive Padding™ was designed around the two things a pressure mat can actually measure: how hard the saddle loads your sit bones, and how hard it presses in the perineal zone between them.

Most padding asks you to accept a trade-off. Soft foam bottoms out under load, so your sit bones end up carrying the pressure anyway. Firm foam doesn't bottom out, but it spreads nothing. Reactive Padding uses zones of differing density that respond to load instead — firmer where your sit bones press hardest, softer through the surrounding area.

Measured on a gebioMized pressure mat in April 2024 against eight other saddles: a Zeta model recorded the lowest peak pressure in each of the two zones, and no conventional saddle in the test was lower in both. Every number is published.

Dimensions: 145mm width (carbon fiber)

Weight: 255 grams (145mm carbon fiber)

Materials: full carbon fiber with carbon rails.

Designed by a doctor and avid cyclist, Zeta Saddles patented Reactive Padding™

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Find Your Perfect Fit

Measure sit bone width and add 30 to 40mm then choose the closest width.
For more sizing information go to the CORRECT SIZING page.