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Item # FIZ2733

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Item # FIZ2733

Ready to race.

The Fi'zi:k Arione R3 with K:ium Rails uses a fiberglass and thermoplastic composite shell in order to provide one of the best stiffness-to-weight ratios of any saddle on the market. And not only is this essential for support, but its also a key component to the Arione R3's 'Snake' shell profile concept.

Fi'zi:k refers to each level of flexibility as Snake, Chameleon, and Bull, with the serpent being the most limber and the ox intended for more muscular riders like Greipel. So, which one is for you? Well, if you can easily touch your toes, then the Snake is your ideal saddle shape. However, if toe touching is as out of reach as a podium finish at the Tour, then a Bull designated saddle will support you best. But, back moving back into perspective, the Arione R3's Snake profile is narrow, and it's intended for riders who naturally position their sit bones to receive the most weight.

For further support, Fi'zi:k's fiberglass and thermoplastic composite shell is reinforced with fiberglass in the rear portion where your sit bones reside. This provides a solid platform where it's necessary, not where it isn't. Surrounding, and in-between those pieces, is the highly flexible thermoplastic. This forms what Fi'z:k calls Wing Flex. Wing Flex allows riders of varying pelvis and thigh shapes to find a comfortable position on the Arione R3 for a nearly custom fit. It also assures that pedaling is as nonrestrictive as possible. Finishing off the construction, the shell has been covered with a Microtex fabric that's durable and easy to clean.

The Arione R3 uses Fi'zi:k's proprietary K:ium rails. Essentially, these are a combination of metal alloys, along with a specific tubular design that increases fatigue resistance. The result are rails that're lighter than solid titanium, and with an incredibly higher strength-to-weight ratio than most alloys. This enables Fi'zi:k to keep the Arione R3 steadily under 200 grams -- a respectively light race-day perch.

The Fi'zi:k Arione R3 Saddle with K:ium Rails is 132mmm wide, 300mm long, and is available in the colors Black/white and White/black. It is also compatible with Fi'zi:k's line of Integrated Clip System products.

Tech Specs

fiberglass thermoplastic composite
Seat Length:
300 mm
Seat Width:
132 mm
Actual Weight:
White/Black, Regular: 207g
Recommended Use:
road cycling
Manufacturer Warranty:
1 year

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Avg. ride time: 2h 21m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Arione forever!

  • Familiarity: I've used it several times

I've been using saddles with the relief in the center for many, many years. Saddles I've tried without that relief always ended in numbness and pain. I tried the Arione VSX and knew immediately that long and slender shape was what I needed but the channel was not letting me get comfortable. I was afraid to go without the relief channel but I liked the Arione shape and length so much I tried the R3 (at a good price at CC). To my surprise, I have to say that it is the most comfortable saddle I've ever had. I move a lot in my saddle and the length allows me to do that comfortably. I have thick thighs so it's narrow design is never in the way. Like many cyclist my journey to find the perfect saddle has been long, frustrating, and costly. From now on it's Arione forever.

Is the padding on this saddle more like...

Is the padding on this saddle more like an (original) arione or an arione cx?

It has a material that is more comfortable. The density of the padding had to be adjusted to comply with the comfort since the shell is different. However, it is one of those things that one hardly notices.

Arione or Arione CX are comfortable as well, but the composite of the shell is also different. So I would say that they are trying to keep a certain level of comfort, as the material of the shell changes, then they change the density of the foam and so it goes. Hope that makes sense.