Specialized Power Arc Expert Saddle

The initial success of the Power saddle design didn't rule out any evolutionary design process. Some cyclists reported feeling more "perched" than "settled in" so the Arc shape was developed. Most likely the those who had always been more comfortable on a more rounded shape saddle struggled, as those who may have been used to a truly or modestly flat design have no idea what the others are talking about. The Arc, in this case as the Power Arc Expert, has the same concept and features of the standard shape, but more curve, offering the rider to integrate more with the design and take full advantages of the Power.

The aptly named Power Saddle line from Specialized represents the push for the best combination of power, efficiency and actual physical health and comfort while riding in an aggressive position. Yes, it is designed for forward hip rotation, such as what you'd find while riding in the drops, or simply having more overall drop from the saddle to the top of the bars. The shorter structure of the saddle is often referred to as "stub-nose" though not all short models truly fit that term. By removing the forward extension of the saddle, where few people actually truly ride much, the Power reduces the area forward of the main sit bone contact points.

This can eliminate a friction zone, and it also has the effect of keeping the rider in-place more, to the physical location where an informed bike fit process would identify the best extension and fore-aft for an efficient and repeatable powerful pedaling action. Otherwise, the Power design has been shaped for this posture, with a proper width and central relief channel derived from the Body Geometry system. It is designed to reduce pressure on soft tissue and get sit bones placed and lifted in the proper width support zone to reduce pressure on soft tissue, as well as impingement of nerves and arteries. The Arc just accentuates the curve without impacting the Body Geometry rationale of the standard Power shape.... Read More