Mavic Ksyrium Pro UST Disc WTS Rear Wheel with Yksion Pro Folding Tire - Centerlock - 12x142mm

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Description of Mavic Ksyrium Pro UST Disc WTS Rear Wheel with Yksion Pro Folding Tire - Centerlock - 12x142mm

Their extensive experience designing mountain bike disc wheels gave Mavic a big advantage in engineering the Ksyrium Pro UST Disc. The main difference with disc brakes is that brake forces move from the rim to the hub, farther away from the ground. Unlike a wheel with rim brakes, braking torque is distributed through the hub, spokes and lower rim before it reaches the ground.

The rear wheel also needs 24 spokes, but since the braking torque is generally lower, Mavic uses Isopulse lacing (radial lacing on the drive side) to maintain a better balance of the spoke tension, thus greater stability and stiffness.

The unique ISM 4D technology (Inter Spoke Milling 4 Dimensions) minimizes rim weight for better agility and reactivity when accelerating or braking. By removing extra material from the rim, weight can be saved without compromising strength. At only 850 grams, the Ksyrium Pro UST Disc rear wheel is a superlight choice for a disc brake-equipped road bike.

Thanks to the Road UST technology and coming with the Yksion Pro UST tubeless tire, the wheels get the benefits of Road UST: super low rolling resistance, improved ride quality, extra puncture protection, ease of use and safety. The rear wheel features the fast-engaging Drive 360 freewheel system. It comes with a 12x142 mm thru axle and is convertible to quick release (adapters not included). Compatible with Centerlock brake discs.

Mavic Road UST Tubeless technology


By combining their knowledge of wheels and tires, Mavic was able to perfect the symbiotic relationship between the tire bead and the rim hook to offer a system that is not only fast on the road and easy to maintain, but also 100 % reliable so you can focus on one thing - your ride.


Fast in line and quick through the turns
All-new rubber compound achieves the best balance of grip and low rolling resistance.

Safe and easy to use
Patented UST technology ensures the perfect union between tire and wheel, ensuring easy installation and removal.

Smoother ride and more puncture resistant
Ride with lower pressure for increased comfort and reduced risk of pinch flats.

Technologies of the Mavic Ksyrium Pro UST Disc WTS wheels:


Fore - Stiffer and stronger. Instead of being drilled, the lower rim bridge is pushed up on the inside, then threaded to enable the spoke nipples to be directly screwed in it, leaving the upper rim bridge intact.

ISM 4D (Inter Spoke Milling 4 Dimensions) - An exclusive Mavic patented concept, ISM 4D not only significantly reduces weight and reduces inertia without compromising durability, but also improves aerodynamics due to its new rim shape. Further advantages: up to 50 grams lighter for faster climbing, the lowest inertia for instant acceleration and a smooth aerodynamic rim shape to reduce drag.

Isopulse - This spoke lacing design and mounting brings better wheel stability, a constant spoke tension and a crystal clear transmission of energy.

Maxtal - Exclusive to Mavic. An aluminum alloy that is 30% more resistant than a 6106 alloy for lighter and spicier rims.

Zicral - Light, stiff and strong. A specific aluminium alloy that provides spokes with higher stiffness-to-weight ratio while being stronger.



QRM Auto (Qualité de Roulements Mavic Auto) - Mavic's latest innovation. Those cartridge bearings are double sealed with C3 internal clearance. Their preload is automatically adjusted to guarantee a perfect spin with no play on the long run.

Instant Drive 360 - The Instant Drive 360 freewheel system is super light and fast to engage with only 9°. A large contactless rubber seal provides low friction, while a wide array of end caps makes it super versatile.

SUP (Soudé Usiné Process) - A welded and milled rim joint which is extremely strong, eliminates shuddering when braking and offers superior wheel balance.

Features of the Yksion Pro UST folding tires:


Low rolling resistance and extra speed
  • No more friction between tire and tube.
  • The exclusive 11 Storm compound reaches the best balance of grip and low rolling resistance.
  • Lighter than clincher tire + 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 tire pressure with no risk of pinch flats.
  • Just 30 grams of sealant prevents most puncture.
Maintenance/care:
Clean with a dry cloth or soap and water. Do not use pressurized water.

Mavic Care manufacturer's warranty:
The Mavic Care program offers you the opportunity to activate online a 3 year manufacturer warranty for all newly purchased Mavic wheels, helmets and Comète Ultimate shoes. A picture of the original purchase receipt is required for online registration. With the registration to Mavic Care you're also eligible for Mavic's Crash Replacement Program.
To sign up for Mavic Care or receive more information about it, please use the following link or ask our service team.
Mavic Care manufacturer's warranty
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Fact Sheet of Mavic Ksyrium Pro UST Disc WTS Rear Wheel with Yksion Pro Folding Tire - Centerlock - 12x142mm

Product Name: Mavic Ksyrium Pro UST Disc WTS Rear Wheel with Yksion Pro Folding Tire - Centerlock - 12x142mm
Manufacturer: Mavic Parts
Item Code: MAV336884
Year: 2020
Manufacturer item code: R2045130
Material: rim: Maxtal
hub body / axle, nipples: aluminium
spokes: Zicral
freehub body: steel
Weight: approx. 850 gram (without tires | manufacturer information)
Rim height in mm: 22 mm
external/internal rim width: 19 mm internal
E.T.R.T.O.: 19-622
Spokes: Straightpull, double butted, aero
Nipples: Fore (integrated into spokes)
Spokes number: 24 (Isopulse)
Hub axle system: 12x142 (RW)
Fitting type of tire: clincher / folding tires, UST Tubeless Ready
Fitting tire dimension in mm: 25-32
Maximum tire pressure in bar: mm Tubeless: 6.0 bar (87 PSI)
28  ||| mm Tubeless: 5.0 bar (70 PSI)
25/28  ||| mm with tube: 7.7 bar (110 PSI)| ||| 5
Purpose: Road ||| Training
hub: auto adjust sealed cartridge bearings (QRM Auto)
Fitting for shifting: selectable:
Shimano/SRAM 8/9/10/11-speed (M11)
Campagnolo 9/10/11-speed (ED11)
Freehub: Instant Drive 360
Max. permissible total weight in kg
(rider + bike):
120 kg
Color: rim: black with grey graphics
hub, spokes, nipples: black
Disc brake standard: Centerlock
Included in delivery: rear wheel incl. 25mm Yksion Pro UST folding tire, UST valve, 1 bottle Mavic Sealant, multifunction wrench and manual
Manufacturer page: http://www.mavic.com
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Selection: Mavic Ksyrium Pro UST Disc WTS Rear Wheel with Yksion Pro Folding Tire - Centerlock - 12x142mm
Currently not in stock Delivery time 2-3 weeks Rear Wheel Compatibility Shimano 8/9/10/11-speed (M11)
Currently not in stock Delivery time 2-3 weeks Rear Wheel Compatibility Campagnolo 9/10/11-speed (ED11)
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