Specialized S-Works Phenom Mirror Saddle Black 143Mm CheckoutTitle=Park Tool MW-17 Metric Wrench 2 positions of the mounting

2 positions of the mounting thread

The Manufacturer Spec ERD specification listed uses the less common “ERD+” method

External BSA

5mm (no riser kit) to 138

Specialized S-Works Phenom Mirror Saddle Black 143Mm CheckoutTitle=Park Tool MW-17 Metric Wrench 2 positions of the mountingWell known for its long body and flat profile, the Phenom is the shape of choice for many of the best racers in the world, ranging from Tour of Flanders winner Kasper Asgreen to World DH Champion Loic Bruni. Like every saddle we make, the S Works Phenom with Mirror was ergonomically designed and scientifically proven our Body Geometry methodology combined with our Mirror 3D printing resulting in 28% less pressure, right where it counts. BODY GEOMETRY: