High-tech for your backside – that’s the concept behind the new Nago R4 3DMSS saddle. Prologo promise top-notch comfort on long rides, claiming that you’ll feel as if you were sitting on cloud nine. True to the motto, “Enjoy the ride and stay seated,” we put this high-end saddle through the wringer to see if it delivers on its promises.

Prologo Nago R4 PAS 3DMSS | Price 420 € | Weight 149 g | Manufacturer’s Website

€ 420 for a saddle? Is it made of gold? Of course not – that would be far too heavy!
Instead, the 3D-printed Nago R4 PAS 3DMSS relies on an innovative lightweight construction, which earns it flagship status in Prologo’s line-up. Whether it’s for car parts, medical equipment, or even entire houses, the 3D-print hype has firmly taken hold across industries – and cycling is no exception. This technology allows components and structures to be designed and manufactured to match specific force patterns, reducing the amount of raw material required in the process. And let’s be honest, the promise of lighter components always gets us roadies sitting up and paying attention 😉. We’ve also tested a pair of bib shorts with a 3D-printed seat pad before, check out our review of the Gore Ultimate.

The flagship model in Prologo’s Nago range features a full carbon shell and rails, measuring 245 mm in length and 137 mm in width, while tipping the scales at an impressively light 146 g. For comparison’s sake, 3D-printed saddles from the competition weigh between 150 and 190 g, with prices ranging from € 149 to € 420. This puts the Nago R4 PAS 3DMSS at the upper end of the price spectrum, but at the lower end when it comes to weight.
For roadies suffering from saddle discomfort, though, the right saddle could be a game-changer. But does optimal seating comfort require gold Amex status? As we’ve recently found in a test, a professional bike fitting can address individual issues far more precisely – and might save you a fair bit of cash before diving into expensive upgrades.

The signature cut-out in the saddle is all about boosting comfort and relieving pressure points in sensitive areas – your potential future offspring will thank you for it!

On Review: How Does the Prologo Nago R4 PAS 3DMSS Perform?

We put the Nago R4 PAS 3DMSS through its paces – and yes, you’ll definitely want to stay seated! The futuristic design leaves a strong impression right from the get-go.

For the design and construction, Prologo rely on their in-house MyOwn Pressure Map analysis. This system uses 50 sensors spread across the saddle’s surface to measure the rider’s pressure distribution. In areas where no pressure is detected, material can be reduced, resulting in significant weight savings on what is already one of the lightest components on your bike.

The 3D-printed seating area is mounted on the carbon rails, and creates the critical contact point between rider and bike. However, it’s worth noting that high-oval saddle clamps are essential for installation. The 3D printing process allows for varying levels of softness and firmness in different zones, determined by the density of the honeycomb structure. Prologo’s MSS (Multi Sector System) sets it apart from competitors, creating a unique ride experience.

When using the saddle for the first time, it feels a bit like you’re breaking in a new sofa: firmer than expected, but with a surprisingly compliant structure. This flexibility means you’ll need to raise your saddle height by 1 to 2 mm to avoid sitting too low. Needless to say, fit and comfort are highly subjective, and vary from rider to rider depending on riding style and position.

The saddle features five zones with varying levels of firmness. In our test, we could distinctly feel the differences. For example, even in an aggressive racing position, sitting on the nose of the saddle was surprisingly comfortable – which is rare with traditional saddles that often become unbearable after a few hours at race pace. The damping properties and firmness change across the saddle, with the central section being notably softer and thinner than the rear. Additionally, the cut-out in the middle provides extra relief in the soft tissue area.

In short, Prologo’s thoughtful design delivers a comfortable ride, especially for those who demand performance without compromising on support during long efforts.

The varying density of the honeycomb structure determines the thickness of each layer, which in turn controls the flexibility of individual zones.
The saddle shell and rails are made from carbon reinforced with Kevlar and aluminium filaments.

The Prologo Nago R4 3DMSS really shows its strengths on longer rides (130 km +) and multi-hour outings on less-than-perfect surfaces. The combination of carbon’s natural damping properties and the proprietary 3D-printed structure soaks up bumps and vibrations with ease. This makes the saddle not only ideal for traditional road bikes but also a great option for tackling rougher terrain. However, the damping performance can vary depending on the type of bib shorts and the padding they feature. Despite this, the saddle remains structurally stable, making sure you avoid excessive bouncing and maintain consistent power transfer – a common issue with overly-soft saddles that flex too much under pressure.

Rubber surfaces often have a tendency to get slippery in wet conditions and with sweat buildups, but our experience over countless rainy rides during the festive season revealed quite the opposite. Thanks to the open structure, water doesn’t pool on the saddle, keeping you securely in place without slipping around. This was also the case during intense indoor turbo trainer sessions. When paired with a cooling fan to replicate outdoor airflow, the saddle prevented the dreaded “swampy backside” scenario. Sweat didn’t accumulate, meaning that the skin stayed dry and didn’t soften, helping to avoid soreness and chafing.

In short, the Nago R4 PAS 3DMSS delivers not only impressive comfort on long, challenging rides but also practical performance in wet and sweaty conditions – perfect for roadies looking for all-round reliability.

Do you need the Prologo Nago R4 3DMSS saddle?

Absolutely! If you’re after a premium, lightweight saddle that uses cutting-edge technology to squeeze out every last drop of performance and comfort, the Prologo Nago R4 3DMSS is a perfect fit. Weight weenies and bike aesthetes alike will love it – though, as you’d expect, that level of sophistication doesn’t come cheap.

Would we buy the Prologo-Saddle?

That said, there’s one key factor: your pelvis anatomy needs to suit the non-customisable shape of the Nago R4 3DMSS. If it doesn’t, even the most advanced tech in the world won’t save you from discomfort. But for those who find their fit, the five comfort zones deliver a noticeable boost in support without compromising power transfer.

No rough edges, flawless workmanship: there’s nothing to rub or chafe here, keeping both your bib shorts and your backside safe.

The saddle’s versatility is another big plus. Whether you’re grinding on gravel or cruising on smooth tarmac, the Prologo Nago R4 3DMSS performs across a range of terrains. And with its futuristic 3D-printed design, it’s a guaranteed head-turner on any group ride – a true standout piece that makes a statement. Instead of a ticket from the fashion police, you’ll get approving nods and, quite possibly, a few envious glances 😉.

Yes, but… The Prologo Nago R4 3DMSS impresses with its innovative honeycomb structure, created using 3D-printing technology on a carbon shell. The result is a flexible, grippy, and breathable surface that effectively relieves pressure points without sacrificing power transfer. Strategically placed firmness zones support your individual riding position, delivering noticeable comfort on long rides and during demanding races.
However, despite the premium price, the saddle isn’t customisable. If the predefined shape suits your anatomy, you’ll be rewarded with a true high-performance saddle that excels both on and off the road. If it doesn’t, though, even the most advanced features won’t help.
In the end, saddles are a deeply personal choice – one every rider needs to figure out for themselves.

Tops

  • Lightweight
  • Sleek, eye-catching design
  • High comfort on long rides and rough terrain
  • Excellent grip and ventilation

Flops

  • Not customisable

More info at prolog.it


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Words: Tobias Kübler, Jan Richter Photos: Jan Richter