Specialized Phenom Pro MirrorNew bike saddle to combat sitting problems

Josh Welz

 · 31.03.2025

Specialised Phenom Pro Mirror: Spacious 3D print design. Available in widths of 143 and 155 millimetres for 320 euros. Material: Recycled carbon fibres, nylon-reinforced shell, titanium struts.
Photo: Specialized

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With the Phenom Pro Mirror, Specialized wants to declare war on seat discomfort. The new bike saddle combines the proven Body Geometry methodology with Mirror 3D printing technology.

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With the Phenom Pro Mirror is launching a new bike saddle on the market that aims to redefine the boundaries between comfort and performance. The Phenom Pro is the latest member of the Mirror saddle family and was developed in close collaboration with top athletes such as six-time downhill world champion Loïc Bruni. According to the manufacturer, the Specialized Phenom Pro Mirror combines Specialized's proven Body Geometry methodology with the innovative Mirror 3D printing technology. This combination should make it possible to reduce bone pressure in the seat area by up to 28 per cent compared to conventional foam saddles. At the same time, Specialized promises improved blood circulation and increased protection of the soft tissue. The manufacturer bases these claims on extensive high-resolution pressure mapping studies carried out as part of the development process.

The facts about the Specialised Phenom Pro Mirror

  • Widths: 143 and 155 millimetres
  • Technology: Body geometry methodology and mirror 3D printing technology
  • Material: Recycled carbon fibres, nylon-reinforced shell, titanium struts
  • Range of use: Gravel, XC, Trail, E-Bike
  • Weight: 262 and 267 grams
  • Price 320 Euro >> available here
The Americans' 3D printing technology is designed to reduce bone pressure in the seat and improve blood circulation at the same time.Photo: SpecializedThe Americans' 3D printing technology is designed to reduce bone pressure in the seat and improve blood circulation at the same time.

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Innovative design for maximum performance

With a length of 27 centimetres, the Specialized Phenom Pro Mirror is slightly longer than the 24-centimetre Power Shape from Specialized. The Americans emphasise that this is their flattest bike saddle from the rear to the nose. This special shape and construction should allow the rider maximum freedom of movement and ensure optimum positioning for powerful pedalling. During speed and sprint efforts, you should be able to sit comfortably on the nose while the saddle simultaneously supports the rider's movement on climbs. This versatility should make the Phenom Pro Mirror an interesting option for different riding situations and disciplines. Specialized recommends the saddle for gravel, XC, trail and e-bike use.

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Range of use: Gravel, XC, Trail, E-Bike.Photo: SpecializedRange of use: Gravel, XC, Trail, E-Bike.

3D technology meets ergonomic expertise

The centrepiece of the Phenom Pro Mirror is the innovative 3D-printed matrix, which consists of 20,055 struts and 8,735 nodes. This complex structure should make it possible to precisely adjust the density of the saddle and thus achieve optimum pressure distribution. The concave shell of the saddle is also designed to enable thicker mirror padding, which should further increase comfort. In order to appeal to the widest possible target group, Specialized offers the Phenom Pro Mirror in two widths: 155 millimetres and 143 millimetres. This selection should enable riders to choose the saddle best suited to their anatomy.

Scientifically sound development

Specialized emphasises that the development of the Phenom Pro Mirror bike saddle is based on extensive scientific studies. The manufacturer has not only carried out pressure mapping and comfort studies, but also analysed the blood flow in the genital area. This research should ensure that the Body Geometry methodology and the Mirror saddles not only promise to solve problems such as bone pressure in the seat, scar tissue formation and blood flow loss, but have also been proven to do so. According to Specialized, the Mirror technology makes it possible to support the sit bones over a larger area and create a hammock effect. This allows the saddle to support the rider's weight without straining the sensitive tissue around the sit bones.

Focus on sustainability and longevity

When developing the Phenom Pro Mirror, Specialized also paid attention to sustainability and durability. The nylon shell of the saddle is reinforced by injecting recycled carbon fibre. In combination with the hollow titanium struts, the result is a saddle that, according to the manufacturer, is light enough for performance road, gravel and XC riding. In figures, this means that with a width of 143 millimetres, the Phenom Pro Mirror weighs 262 grams.

Josh Welz

Josh Welz

Editor-in-Chief

Josh Welz studied sports journalism and, as editor-in-chief, shapes the journalistic direction of BIKE. In 2016, Welz picked up on the e-trend and developed the title EMTB. Accordingly, he likes to move between worlds. However, as his enthusiasm for crisp trails is greater than his training diligence, the pendulum often swings in the direction of "E".

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