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  • Fi'zi:k Kurve Bull Saddle - 7x9 Aluminum Mobius Rails
  • Fi'zi:k Kurve Bull Saddle - 7x9 Aluminum Mobius Rails Top
  • Fi'zi:k Kurve Bull Saddle - 7x9 Aluminum Mobius Rails Side
  • Fi'zi:k Kurve Bull Saddle - 7x9 Aluminum Mobius Rails Bottom
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Fi'zi:kKurve Bull Saddle - 7x9 Aluminum Mobius Rails
Sale 10% Off$247.50 $275.00

Item # FIZ003F

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  • Black, One Size ($247.50)
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Item # FIZ003F

Grading on the bull Kurve.

How does a bull hide from ranchers? By painting its nails red and climbing a cherry tree. How does a bull ride a bike? On the Fizik Kurve Bull Saddle. In Fizik's Linnaean estimation of cyclists-as-animals, Bulls are less flexible and rotate their pelvises forward when they ride, an adjustment that requires a saddle with a larger, deeper pocket.

Bull cyclists can also experience some discomfort from their sit bones on traditional saddles, and will benefit from a wider saddle with a bit more of top-to-bottom wave to decrease pressure in sensitive areas. This type of thinking is just one example of the R&D nous that went into the Kurve.

Instead of relying on padding — which can degrade over time and is really only treating the symptoms of saddle discomfort — Fizik looks to imbue the saddle's actual form with elements of comfort. The Kurve's composite Re:Flex shell incorporates Kevlar in order to behave like a sensory receptor, mirroring your movements as you ride to offer support while conforming to your body. This further complements Fizik's TwinFlex and WingFlex technologies, which provide pedaling compliance in the center and wings, respectively.

The Kurve Bull Saddle also features Fizik's new Tuner insert, an interchangeable nosepiece that allows you to customize the flex of the saddle. By installing the more flexible nosepiece for a softer, gentler ride or the rigid piece for more stiffness and less flex, you can fine-tune the saddle's properties for comfort or efficiency.

The Fiziki Mobius Rail is a one-piece circular rail system constructed of cold-forged aluminum alloy. Rather than supporting the saddle along its latter half, it places the support along the back edge. This lets the Kurve's various elements — especially the TwinFlex center — provide even more comfortable compliance.

  • 7x9mm aluminum rails
  • Mobius rail provides support without padding
  • Designed for “Bull” type riders, with slightly-less-flexible spines
Tech SpecsWeight
Tech Specs
Mobius (aluminum alloy)
Re:flex composite (Kevlar)
Seat Length
265 mm
Seat Width
146 mm
Recommended Use
Manufacturer Warranty
5 year

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

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Black, One Size

Claimed Weight

Claimed weights are provided by the vendor.

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225 g

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My new favorite saddle!

  • Familiarity: I've used it several times

I've been riding a Fizik Aliante gamma for some time and recently purchased the equivalent Kurve model, the Bull. First, it has oval rails so make sure your seatpost can accomodate before buying. I was skeptical of a saddle with no padding-relying on the stretch between the unique rail structure for support and cushioning-but it works. I only have a few hundred miles on it so far in 35-50 mile increments but it is looking like a keeper! I'm not quite sure why this saddle has to be $100 more than regular Aliante-I;m sure that you would see more of them if not for the steep price. Be aware that due to unique shape of rails at back of saddle, a lot of saddle bags will not work (ex. Topeak DX systems don't work)

My new favorite saddle!
Unanswered Question
Avg. ride time: 2h 16m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

How is this different than the previous gen Kurve saddle? The geometry and weight seem identical.