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Low rolling resistance and extra speed

No more friction between tyre and tube
New exclusive 11 Storm compound reaches the best balance of grip and low rolling resistance
Lighter than clincher tyre + tube combo

Easy to use and repair

Perfect match guaranteed with Mavic UST Wheel-System
Tight control over beads diameter and stiffness
Kevlar beads stretches just enough for easier mounting

Improved comfort with high flat protection

Lower recommended tyre pressure with no risk of pinch flats
Just 30g of sealant prevents most puncture
Available in 25mm and 28mm

The Yksion Pro UST offers the best blend of low rolling resistance, grip and comfort, a trilogy that is usually impossible to reconcile.
The rolling efficiency has been measured 15% lower than a tubetype equivalent in our lab and in real life.
Our testers have also found it super fast in wet turns, bringing them an unmatched confidence.
Being tubeless, it can be run at lower pressure (about 1 bar / 15PSI less) than a standard tubetype tyre, with no loss of efficiency and with less risk of pinch flat.
And what's usualy the achille heel of tubeless (mounting and servicing) has been solved by developing it together with our own wheels for tighter tolerances. The stretchable kevlar beads are super easy to mount and dismount. With just 30g of sealant, it's as airtight as a butyl tube and offers a nice puncture protection.
Available in 25mm or 28mm.

Yksion Pro UST is rated 1.3 out of 5 by 3.
Rated 1 out of 5 by from Do not hold up to promise (installation and flat) These tyre look great, especially on my new Canyon Ultimate with Mavic Cosmic Carbon Pro wheels. The grip is good, and the rolling resistance is great. But, installing them still required me to use my bike tyre levers (and that way I damaged my rims a bit). But once they are on, they are as easy to use as stated. Now, about 250km (yes, only 250km), the rear tyre already ran flat, spraying all that sealant on my bike (which luckily comes off pretty easy). So, to me, this puncture protection (using sealant) feels like a false promise. They look so good I want them on my bike, I just wished these tyres were more durable!
Date published: 2019-07-28
Rated 2 out of 5 by from Almost great, but... I love the idea behind the UST system. However, the tyres cut so very easily. I check my tyres before each ride and these have wet spots around the cuts – I guess that's the sealant leaking out a little. Also, it's almost impossible to get replacement Mavic tyres here in Australia. Disappointed.
Date published: 2019-02-08
Rated 1 out of 5 by from Tires wear down extremely fast. I bought the Ksyrium Pro UST set Sep 2019, because of its great price point, light weight stiff wheels, true tubeless technology, and easy maintenance. My issue was no different from others who made a review here. I started simply looking for a wear indicator(which I assume there's no wear indicator)on the tire and come to find many cuts on my tires, 6 in the rear and 3 in the front. I also found the seam where the tire is put together because I thought it was a scratch going diagonally across the tire from sidewall to sidewall on both tires. I'm not sure but I think the seam would not be visible after manufacturing. 6 photos is not enough to show all discrepancies. With this many cuts I'm very concerned on riding long distances like a Gran Fondo. I really like the tubleess tire technology but I don't think the intent is to make a low quality tire and solely rely on the sealant for tire durability. Mavic please help! Thanks!
Date published: 2020-01-07
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  • Superior: polyamide, bead to bead
  • Guard


  • 127 TPI, Tubeless Ready

Pressure Max

  • 25mm: 7 bars - 101 PSI, 28mm: 6 bars - 87 PSI (on a 17mm wide rim)

Tread Compound

  • 11 Storm
  • Single Compound


  • Black with white labels, 28-622 (700x28)
  • Black with white labels, 25-622 (700x25)
UST Tubeless Ready

UST Tubeless Ready

Traction, control and lightweight
The UST concept improves traction, control and comfort while reducing inertia and flats.
The 'tubeless ready' construction results in a lighter tyre for improved performance.

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