Specialized & OECHSLER

Innovative design, quantum-leap-engineering and additive manufacturing for bike saddles

Bike saddle
Material used
3D-printed bike saddles in series production for superior riding comfort

Along with handlebars and pedals, the saddle is one of only three components connecting the rider with the bike. Therefore, the importance of the saddle cannot be underestimated.

“To create the most comfortable performance saddle” – nothing less has been the target when American bicycle manufacturer Specialized teamed up with 3D-printing pioneer Carbon and polymer solutions provider OECHSLER to develop a brand-new, additively manufactured bike saddle. Together the three partners created a breakthrough in rider comfort at the speed of light in terms of production.

Exploring new technologies

Overcoming design limitations

Over the course of the last 25 years, Specialized has invested heavily in research and innovation, with the goal of improving riders’ experience on the bike. This has all been made possible by Specialized’s Body Geometry methodology: Identify a problem, solve it with design, validate with science. However, the possibilities of conventional production techniques and materials (especially foam) were exhausted at a certain point—particularly in terms of comfort and rider stability. At this turning point, Specialized started exploring the benefits of free design, rapid product development, and serial production in additive manufacturing. Thanks to Carbon’s innovative 3D-printing technology, the S-Works Power with Mirror technology was the first successful saddle expanding product features beyond what was previously possible. It went straight on to become an award-winning product, impressively demonstrating the capabilities of Carbon Digital Light Synthesis™ (Carbon DLS™) technology.

Product Innovation at scale

Unprecedented riding experience

With the vision to push limits even further, Specialized has just introduced the brand-new successor S-Works Romin Evo with Mirror technology. This product innovation resulting from the close collaboration between Specialized, Carbon, and OECHSLER stands for a unique riding experience for cyclists. It has also been a proof point in showing that the 3D-printing technology provided by Carbon is highly scalable and thus has paved the way for OECHSLER to become production partner of choice for Carbon. This resulted in a direct and agile client relationship with OECHSLER taking over responsibility for working with Specialized as they the develop future products.

Paving the way

How it all started

“We were introduced to each other by a global sporting goods OEM and decided to collaborate on scaling 3D printing for a high-volume project", says Markus Bischoff, Vice President Sales for Additive Manufacturing and Sporting Goods at OECHSLER.

Back in 2016, OECHSLER partnered with Carbon for the first time, driven by a large customer project. Around the same time, Specialized acquired its first Carbon M1 printer, for prototyping and testing purposes. “Additive manufacturing allows for a more efficient development time including countless incremental improvements until the final product. The speed at which we were able to bring a design from the computer to a prototype on a bike for our ride testers to give feedback is game-changing,” says Emma Boutcher, Product Manager at Specialized.


Bundling expertise

Since 2016, Specialized and OECHSLER have gained deep expertise in Carbon’s DLS™ Technology. While Specialized, for example, reduced the overall development process for a saddle from the typical 18–23 months’ timeline to just 13 months, OECHSLER built one of the largest polymer-based additive manufacturing fleets, with over 150 3D printers globally, producing well over one million additively manufactured components per year since 2019.

When Carbon, Specialized, and OECHSLER came together in the second half of 2020, the challenges facing the companies were great. Within four months, prototyping of the S-Works Romin Evo with Mirror technology was completed, and within another two months, serial production was industrialized to ensure product launch just ten months after OECHSLER's onboarding.

S-Works Romin Evo with Mirror Technology

Product and Production Process

The development process started by analyzing feedback from ride testers collecting data from pressure tests, and using findings from previous development processes. Carbon and OECHSLER engineers translated these into technical specifications.

Since the development phase was very time-constrained, the benefits of Carbon's DLS™ Technology were critical and accelerated the process in a breakthrough way. The short iteration loops allowed the collection of large amounts of data. A total of 14 different designs have been developed and tested. A typical iteration loop, which consisted of testing, collecting, and analyzing data to turn the insights into product adjustments, took an average of 21 days.

"It was fantastic to see the OECHSLER, Specialized, and Carbon teams work together to rapidly design, print, test, and repeat to develop a ground-breaking new saddle that takes full advantage of all the benefits that can only be recognized by using additive manufacturing at scale."

Kelley McCarroll-Gilbert, Business Development Director at Carbon, remarks about the project. Based on the final prototype, OECHSLER engineers optimized the print file for serial manufacturing to increase yield, speed production, and reduce environmental impact without compromising performance and design. 

OECHSLER's highly flexible Carbon DLS production had already demonstrated manufacturing capabilities in printing various applications (e.g., shoe soles, football helmet inlays) in the past. However, to realize the matte appearance, it was necessary to develop and validate a laser-based ultra-light post-process. From the first trial to series production, OECHSLER's process specialists developed this post-process in record-breaking four months.

The result:
The project took six months from prototype to industrialization.

Performance cycling

Introducing the new S-works Romin Evo

The S-Works Romin Evo with Mirror technology has been specially developed for the performance cycling market. These applications must meet the highest level in rider perceived comfort, pelvic stability, and soft tissue health. Poor seat comfort can lead to injuries and abrasions, and thus directly affects the performance of the cyclist.

Specialized, Carbon, and OECHSLER have joined forces to create a new riding experience for the end-user. The damping and energy recovery characteristics of the lattice structure are programmable via the geometry of the lattice, the thickness of the 22,000 lattice bars, and the cell size of the lattice. This allows different areas of the S-Works Romin Evo with Mirror technology to have different damping characteristics, leading to superior comfort. Overall, the seating pressure is being reduced by 18 to 26 percent compared to foam. The 190-g S-Works Romin Evo with Mirror Technology is 260 mm long with a width of 143 or 155 milimeters.

Rethinking conventional manufacturing

From design to serial production

Carbon’s technology platform of printer hardware, software, and materials enables the print quality and speed necessary for high-volume production, and provides materials with characteristics required for a great product. "From the beginning, Specialized had a clear eye for innovation and bringing new, high performing parts to market. We are excited to continue working closely with both the Specialized team and OECHSLER team to continue bringing new Carbon DLS™ products to the cycling market.", Kelley McCarroll-Gilbert, Business Development Director at Carbon

Specialized strives to create a rider benefit in all aspects of their product offerings. In doing so, they continuously break the boundaries of traditional manufacturing technologies and set new standards in the bicycle market, especially because innovation is part of the Specialized DNA. OECHSLER's engineering expertise in product development and manufacturing and its ability to quickly scale prototype and small batch production to high volume production make the polymer specialist an ideal additive manufacturing full-service provider. Currently, the company is exploring new applications besides the saddle with Specialized, aiming to further innovate in the bike market. Carbon provides hardware development and technology, and OECHSLER is the integral full-service partner from development to serial production.

A glance into the future

Specialized, Carbon and OECHSLER realized the development and industrialization of a new product - the Romin EVO with mirror technology - within six months from prototype to industrialization, while using latest scientific results to improve rider comfort and saddle performance.

The project at a glance:

  • Drastically reducing product development and prototyping iterations
  • Design based on body-mapping and implementation of different damping characteristics
  • Reducing pressure points by ~ 20 percent compared to foam saddles
  • Industrialization completed within two months

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Specialized & OECHSLER

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