The Serfas® EX-RX Exerciser On Rails is designed for use as a stationary bike exercise saddle.
Features a comfortable gel top layer, progressive foam technology, Deep Groove™ Design, durable sweat proof vinyl outer cover, central Pressure Eliminating Channel, Zero-Friction Gel Infused Padding, Twin Bar Anatomical Flex, I.C.S.® Infinite Comfort System, Dual Density® Base, and Press Reducing Two Step System.
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