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Fizik Kurve Snake Aluminium saddle



Interesting design that creates the comfiest race saddle I've tried; it'll cost you though

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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I've always been a big fan of Fizik's saddles having ridden various iterations of Ariones and Aliantes but I'd happily say this Kurve Snake Aluminium is the best so far. Performance and comfort in equal measures.

The Kurve saddles are a separate range in Fizik's line up containing three models, the Snake, Chameleon and Bull which embody their Spine concept. If you haven't come across before, this it is based on your flexibility; the shapes are designed to reflect where your bodyweight is positioned.

The Snake that we have here is the the Kurve equivalent of the Arione and is for the most flexible at the lower back. It's shaped to support the rider's weight mostly on the sit bones rather than the genital area. The flat profile works well allowing you to position yourself wherever in relation to where your hands are on the bars. Even in the racing tuck I didn't feel any pressure and that's on a bike with a saddle to drops depth of 240mm.

A lot of the comfort is provided by the main body, or lack of it. It's a composite construction including Kevlar which means its very light and strong. Strong enough in fact that it can have large sections removed at the sit bones and perineum areas.

As you pedal the whole saddle flexes, intensified in these areas which means the saddle is moving with you reducing any pressure points or hot spots. It's minimal though as the seat still feels stiff, in fact you can't feel anything at all even from the first ride the saddle just feels right. There is very minimal padding between the shell and the elastic cover but it's all you need.

Up at the nose end you get a choice of 'tuner' as Fizik call it. This is a plastic spacer that forms part of the overall structure bolting to the saddle around the rails. The two options - soft and hard - change the tension in the saddle body. The hard option makes the top stiff, while the soft gives you a couple of mm of movement when your weight's fully on it. It was this one I preferred as the little bit of movement just took the edge off rough road surfaces. Fizik even provide a little mini tool to change them over.

You also get the WingFlex feature that has been on saddles like the Arione for years where the side of the saddle flexes under pressure from the thighs during pedalling. Again it's subtle but on longer rides you do notice the difference.

Aluminium seems an odd choice for the rails on a top end saddle with most using titanium for a bit of comfort. When you look at the design of what Fizik call their Mobius rails you'll see that the one-piece loop provides structural rigidity to support the flexible saddle base. The tubular design is made from 2014 grade alloy hardened to T6. Unlike most saddles where the separate rails plug into the saddle either side this runs right around the outer rim with a strengthening bar across the rear. There is a carbon-railed version if the 220g alloy saddle is a little too heavy for you.

Overall the Kurve Snake is a brilliant option for racers and offers loads of comfort while being light and stiff. You don't want to be wasting power through a flexible saddle body and the Kurve just acts more like a gentle shock absorber allowing you to put the watts out without compromise. At 295mm its 5mm shorter than the Arione (which changed the rules when it came to saddle length) but it still gives you that length if you are a rider that likes to slide back for climbing.

The only sticking point is the price really. £189.99 is a lot of money for a saddle but this obviously comes down to your budget and the type of bike it's going on.


Interesting design that creates the comfiest race saddle I've tried; it'll cost you though.

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Make and model: Fizik Kurve Snake Aluminium saddle

Size tested: n/a

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?

The Kurve is a separate range of saddles due to its differing design to the rest of the line up but in its Snake guise I'd say its up there on performance with the Arione but providing more comfort.

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

Shell: Re:flex composite - Kevlar

Rail: Mobius Cold Forged Aluminum

Cover: Advanced Elastic Cover

Weight: 220 gr

Dimensions: 294 x 135 mm

Rate the product for quality of construction:

Really well put together, no seams, staples or glue in sight.

Rate the product for performance:

Saddles vary loads between individuals but for me it was the most comfortable race saddle I've used. In fact it's probably the most comfy saddle, full stop.

Rate the product for durability:

I can't see any issues arising anywhere really as there is very little to go wrong.

Rate the product for weight, if applicable:

Not the lightest at this price point thanks to the continuous rail but I'd take the weight penalty for the comfort.

Rate the product for comfort, if applicable:

Just brilliant for me.

Rate the product for value:

It ain't cheap.

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

As you can probably guess by now I really rate it. The shape and amount of flex in the saddle really suited me.

Tell us what you particularly liked about the product

The comfort.

Tell us what you particularly disliked about the product

It's about forty quid more than I'd want to spend.

Did you enjoy using the product? Yes.

Would you consider buying the product? Yes, especially if I could find a bit of a discount.

Would you recommend the product to a friend? Yes.

Anything further to say about the product in conclusion?

For me the Kurve is nearly the perfect saddle; the comfort is spot on and the shape really suited. It is on the pricey side though I do appreciate it is handmade and the weight is about 50-80g higher than others in this price bracket. I'd sacrifice that though for the comfort. It isn't perfect but its pretty close.

Overall rating: 9/10

About the tester

Age: 36  Height: 180cm  Weight: 76kg

I usually ride: Kinesis T2  My best bike is: Kinesis Aithien

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

I regularly do the following types of riding: time trialling, commuting, club rides, sportives, fixed/singlespeed,


With 20 years of road cycling and over 150,000 miles in his legs it's safe to say Stu is happiest when on the bike whatever the weather. Since writing his first review for back in 2009 he has also had a career in engineering including 3D-CAD design and product development, so has a real passion for all of the latest technology coming through in the industry but is also a sucker for a classic steel frame, skinny tyres, rim brakes and a damn good paintjob.
His fascination with gravel bikes is getting out of control too!

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