Product Comparison: Fizik Antares R3 K:ium vs Fizik Antares

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General Specifications
About the Product
The Antares R3 K:ium benefits from improved weight distribution and a host of fi'zi:k technologies including a strong, supportive Carbon Kevlar thermoplastic composite shell and alloy K:ium rail, and Wing Flex which enables flexibility where your thighs meet the saddle.
Standard Antares shape and features with a central pressure relief channel. Kium rails are lighter and stronger than titanium and provide vibration dampening. Carbon reinforced Nylon shell. ICS compatible.
Antares R3 K:ium
Key Specs
Mountain bike Saddle
Mountain bike Saddle
Racing Saddles
Cover Material
Black Gummy Microtex
Ideal For
What customers say about "Key Specs"
Fizik Antares R3 K:ium Rails Road Bicycle Saddle
  • It's certainly far better than anything I've tried before. Now, I can only hope that Fizik doesn't discontinue it.
  • After the first 30 minutes out, I wondered why I couldn't feel anything. I had become so accustomed to numbness and/or pain that total comfort was an altogether new experience.
  • Using as a mtb saddle on an endurance race bike. Pretty comfortable and light.
  • This is a great saddle and I would highly recommend it to anyone with a sit bone measurement of 120mm.
  • Fizik makes great saddles but they are really geared towards racing; great workmanship, high performance, but stiff and without much padding.
Fizik Antares VS Saddle with 7x9 Carbon Braided Rail, Black
  • Met all expectations, light, padding is good.
  • Overly shaped and no relief channel, but well made and reasonably comfortable.
  • This is a comfortable, light saddle.
  • It is well made and uses quality materials throughout, but it did not come close to fitting me.
Size & Weight
2.5 in.
3.0 in.
10.8 in.
14.2 in.
5.5 in.
7.0 in.
1.1 lbs.
0.4 lbs.
Black / White
Black / Black
Integrated Clip System compatible, Fiberglass Base, Wing Flex Technology
Twin Flex Technology, Integrated Clip System compatible
Shell Material
Composite glass co-injected Nylon WingFlex
Carbon reinforced nylon TwinFlex
Rails Material
Carbon Braided
What customers say about "Features"
Fizik Antares R3 K:ium Rails Road Bicycle Saddle
  • Very high quality, stitching is great, and I like the finish of surface fabric.
  • Light, comfortable, and great to look at.
  • Well I put about 100+ miles on the saddle and absolutely love it.
  • It's got a glass weave base, very similar in function to a brooks saddle but obviously not leather and super heavy.
  • However, for me, a saddle without a cutout just doesn't work. I tried MANY different saddle positions, including extreme fore and aft tilt, but nothing could make me comfortable.
Fizik Antares VS Saddle with 7x9 Carbon Braided Rail, Black
  • This saddle was so right for me, that I bought a second one for using on my old steel MTB for going to work.
  • No fancy carbon rails here, but this saddle is comfortable and is lasting well.
  • After trying several saddles, and almost accepting numbness as an unavoidable side effect of long miles, this saddle is a very welcome change to my rig.
  • In my opinion, this is the perfect saddle for mountain biking.
Warranty / Certifications
Manufacturer warranty
2 year(s)
2 year(s)
Other Information
175.00 $

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