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review

Prologo Nago R4 PAS 3DMSS Nack 137 saddle

8
£349.99

VERDICT:

8
10
Exceptional all-day comfort delivered by advanced 3D zonal engineering – though it comes with a heavyweight price
All day comfort
No pressure points
Lightweight
Adjustability
Very expensive
Weight: 
154g

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When it comes to road cycling saddles, comfort and performance are key factors that can make or break your ride. The Prologo Nago R4 PAS 3DMSS saddle delivers on both fronts by utilising the latest cutting-edge design and innovative materials. Over several weeks, I rigorously tested this saddle on a variety of rides, from criterium racing on smooth tarmac to gruelling 220km gravel rides, and in all manner of riding positions and derrière vibrations I was grateful of its comfort.

2024 Prologo Nago R4 PAS 3DMSS Nack 137 saddle - top.jpg

Initial Impressions and Fit

Transitioning from my trusty Selle Italia SLR Boost to the Prologo Nago R4 PAS 3DMSS was a mix of excitement and apprehension. Saddles are a highly personal choice, and the fit can vary greatly from one rider to another. It's always recommended to test a saddle before committing to a purchase, whether through a club buddy, a friendly local bike shop, or during a professional bike fit.

The Prologo Nago R4 PAS 3DMSS has a unique appearance with its 3D-printed mesh design. Upon first glance, it's clear that this is not your average saddle. The 3D mesh construction promises enhanced comfort by providing different cushioning zones tailored to your pressure points. This feature immediately intrigued me, as did the need to raise my seat height by 2-3mm to account for the additional squish compared to my previous saddle.

Performance on Various Rides

My first test was during a criterium race at Castle Combe, rolling around lap after lap, and it didn't disappoint. The saddle's grippy surface initially felt restrictive, preventing easy movement. However, I soon appreciated this feature as it helped me to maintain a stable position, crucial during intense racing scenarios. The saddle's ability to evenly distribute pressure was noticeable, providing consistent support even in aggressive racing positions.

2024 Prologo Nago R4 PAS 3DMSS Nack 137 saddle - from rear.jpg

Next, I took the saddle on several long base-mileage rides around Wiltshire, where the potholed lanes provided a true test of comfort and durability. Here, the 3D mesh construction shone, absorbing shocks and bumps with remarkable efficiency. The saddle's design, with its varying cushioning stiffness zones, provided targeted support, reducing fatigue and discomfort over long distances. Even on the roughest roads, the saddle maintained its comfort, proving to be a reliable companion for everyday riding.

2024 Prologo Nago R4 PAS 3DMSS Nack 137 saddle - underside rear.jpg

Indoor training on a turbo trainer can be particularly challenging for a saddle, as there is little variation in your riding position and constant pressure on the same points. During these sessions, the Prologo Nago R4 PAS 3DMSS continued to impress. The 3D-printed mesh allowed for excellent ventilation, preventing the saddle from becoming overly hot or uncomfortable during long, sweaty sessions. The saddle's ergonomic design supported my pelvis well, and I experienced no numbness or discomfort, even during extended rides.

2024 Prologo Nago R4 PAS 3DMSS Nack 137 saddle - nose.jpg

The ultimate test for any saddle is a long, arduous ride, and the 220km Hotchillee Stone Circle event provided just that. I embarked on this adventure with some trepidation, as I had only logged a handful of rides on the saddle prior to this ride. However, the Prologo Nago R4 PAS 3DMSS exceeded all expectations. Despite the variety of terrains, from bumpy bridleways to teeth-chattering gravel, the saddle remained comfortable and supportive throughout. The ability of the saddle to adapt to different pressure points and riding positions was particularly noticeable, ensuring comfort even during the final, gruelling hours of the ride.

Technical Features and Benefits

The standout features of the saddle is its 3D-printed mesh, which provides varying cushioning stiffness in different zones. The saddle is divided into five sectors, each with its own specific geometric shapes, densities, and elastic coefficients to ensure optimal support and comfort.

2024 Prologo Nago R4 PAS 3DMSS Nack 137 saddle - underside nose.jpg

The rear section of the saddle is designed with high density and a high-elastic coefficient to provide greater support to your ischial bones and facilitate the traction phase of pedalling. The three middle sections feature low density and a medium-elastic coefficient, offering maximum comfort where the soft tissues rest. At the front, the saddle presents a medium density and a low-elastic coefficient, providing good support even when you're sat at the tip of the saddle.

2024 Prologo Nago R4 PAS 3DMSS Nack 137 saddle - detail.jpg

This thoughtful design ensures that each part of the saddle responds optimally to the pressure exerted by the rider, accommodating your morphology and enhancing overall comfort. Additionally, the saddle's construction includes an injected long-fibre carbon base and Nack (Nano Carbon Fiber) rails. These materials help to reduce the overall weight while maintaining maximum stiffness, contributing to the saddle's high-performance characteristics by providing a lightweight yet robust platform suitable for all types of riding.

The long carbon rails offer a wide range of fore-and-aft adjustability, allowing you to fine-tune your setup for optimal performance and comfort. This adjustability is particularly beneficial for achieving the perfect bike fit, which can significantly enhance your riding efficiency and reduce the risk of injury. Additionally, the extended rails make it easy to accommodate a saddle bag, ensuring you can carry essential items without compromising on saddle position or stability.

2024 Prologo Nago R4 PAS 3DMSS Nack 137 saddle - underside.jpg

Furthermore, with the associated price tag of these 3D-printed saddles, the Prologo Nago does not just perform well but also has a premium look when fitted to any bike. Its sleek and futuristic design is sure to complement any bike setup, adding a touch of sophistication and advanced technology that is hard to ignore. This premium aesthetic, combined with its technical prowess, makes the saddle an attractive choice if you're looking to upgrade your equipment.

Maintenance and Durability

A potential concern with any intricately designed saddle is its ease of maintenance. Given the complex mesh of the Prologo Nago R4 PAS 3DMSS, I was worried about how difficult it would be to clean after muddy rides and gravel exploration. However, these fears were unfounded. A simple blast from the garden hose was all it took to get the saddle looking new again, making it a practical choice if you ride in all conditions.

Overall Comfort and Fit

As with any saddle review, it's important to emphasise that fit is highly individual. I have fairly narrow sit bones (115mm), and the 137mm width of the Prologo Nago R4 PAS 3DMSS was a great match for me. The saddle provided excellent support in both aggressive race positions and more upright, endurance-focused riding. The ability to test the saddle under a variety of conditions allowed me to appreciate its versatility and comfort across different types of rides.

2024 Prologo Nago R4 PAS 3DMSS Nack 137 saddle - rear.jpg

The grippy surface of the saddle, which initially felt restrictive, ultimately proved beneficial by maintaining a stable position during intense efforts. While it might take some getting used to, this feature helps to prevent unnecessary movement and potential discomfort during long rides.

Value

There's no denying all the big-brand 3D saddles are wallet-emptyingly expensive compared to traditional foam alternatives.

That said, its price sits in the middle of those of its competitors such as the Fizik Vento Argo R3 Adaptive at £260 and the £410 Selle Italia SLR Boost 3D Kit Carbonio Superflow.

It's a fair bit more expensive than Prologo's own Nago R4 Nack made from carbon fibre and foam, which comes in at £229. For some the extra price might be a reasonable price to pay for a café stop talking point and some bling factor. Not forgetting its exceptional comfort, of course...

For more choices, our best bike saddles buyer's guide rounds up our favourite seats from just £25 upwards.

Conclusion

The Prologo Nago R4 PAS 3DMSS is an impressive saddle that combines innovative design with practical performance. Its 3D-printed mesh construction and varying cushioning stiffness zones provide tailored support and comfort, making it suitable for a wide range of riding conditions. Whether you're racing, training, or embarking on long-distance adventures, this saddle offers a reliable and comfortable option.

If you're considering a new saddle, the Prologo Nago R4 PAS 3DMSS is definitely worth a test ride. Its unique design and advanced materials may require a brief adjustment period, but I think the benefits in terms of comfort and performance are well worth it. As always, ensure the fit is right for you by testing it out through a professional bike fit or a demo ride.

In conclusion, the Prologo Nago R4 PAS 3DMSS has earned its place as a top contender in the world of road cycling saddles. Its innovative approach to comfort and support sets a new standard, making it a worthy investment for serious cyclists who can afford it.

Verdict

Exceptional all-day comfort delivered by advanced 3D zonal engineering – though it comes with a heavyweight price

road.cc test report

Make and model: Prologo Nago R4 PAS 3DMSS Nack 137 saddle

Size tested: 245x137 mm

Tell us what the product is for and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

Prologo says:

"A new multi-disciplinary saddle already adopted by several professionals such as Tadej Pogačar, Mark Cavendish, Geraint Thomas, Pello Bilbao and Alberto Bettiol."

Tell us some more about the technical aspects of the product?

Prologo lists these Key Features:

Comfort and Performance with record weight: Using data from the Pressure Map MyOwn tests, it was possible to identify areas of the saddle where the applied pressures were lower. The cover sections at these areas were made with specific 3D geometric shapes designed to be able to limit the material used, but without compromising comfort or limiting the saddle's performance. The weight of the NAGO R4 PAS 3DMSS is only 149 grams. The absolute lowest weight compared to all 3D models currently on the market.

THE MULTI SECTOR SYSTEM TECHNOLOGY BECOMES 3D: The rear section, has a high density and a high elastic coefficient, to provide greater support to the ischial bones and facilitate the traction phase of pedalling. The 3 middle sections, present low density and a medium elastic coefficient, to offer maximum comfort where the soft tissues rest. The front section, presents a medium density and a low elastic coefficient to offer good support even when it is necessary to pedal at the tip of the saddle.

Designed for the analysis of pressure test: NAGO R4 PAS 3DMSS was born from the study of Pressure Map MyOwn tests, Prologo's proprietary system that allowed scientific analysis of the pressure areas exerted on the saddle by various professional and amateur cyclists.

Nack Rail (Nano Carbon Fiber): Crafted with carbon fibre, kevlar, and aluminum filaments, the Nack rail is tailored for performance-driven cyclists seeking maximum rigidity and lightness.

Specifications

Dimensions: 245x137mm

Weight: 149g

Rail: Nano Carbon Fibre

Rate the product for quality of construction:
 
10/10

Exceptionally well-made, lightweight and innovative design.

Rate the product for performance:
 
8/10

Comfortable straight out the box but a more static riding position did take some getting used to.

Rate the product for durability:
 
8/10
Rate the product for weight (if applicable)
 
10/10

Lighter than its 3D-printed competition.

Rate the product for comfort (if applicable)
 
9/10
Rate the product for value:
 
5/10

No saddle should cost the same as a return flight to Egypt! Though it is at least marginally cheaper than some other 3D-printed saddles.

Tell us how the product performed overall when used for its designed purpose

A superbly comfortable saddle that relieves pressure in a variety of riding positions and conditions.

Tell us what you particularly liked about the product

Its all-day comfort.

Tell us what you particularly disliked about the product

It so expensive it overshadows the rest of my bike.

How does the price compare to that of similar products in the market, including ones recently tested on road.cc?

Marginally cheaper than other 3D printed saddles such as the Fizik Vento Argo 00 Adaptive and the Selle Italia SLR Boost 3D Kit Carbonio, both of which are priced at £400.

Did you enjoy using the product? Yes

Would you consider buying the product? Maybe – though that price...

Would you recommend the product to a friend? Maybe – though that price...

Use this box to explain your overall score

It's a superbly comfortable saddle, and though a high-quality traditional model does nearly as well for half the price, it's not bad value compared with other 3D-printed designs. Money no object I'd probably get one, just don't tell my partner.

Overall rating: 8/10

About the tester

Age: 33  Height: 190cm  Weight: 94kg

I usually ride: Santa Cruz Stigmata   My best bike is: Factor One Disc

I've been riding for: 10-20 years  I ride: Most days  I would class myself as: Expert

I regularly do the following types of riding: road racing, time trialling, cyclo cross, touring, club rides, general fitness riding, Gravel, Track and Zwifting

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