A new improved version of the UST makes using Tubeless tires easier than ever. Integrated into Yksion Pro tires, the UST Tubeless makes installation, removal and maintenance simple and hassle-free. Eliminating tubes reduces friction, which means less rolling resistance and higher speeds. You can also lower tire pressure for a smoother, more comfortable ride and added control on bumpy roads. You'll also like the reduced risk of punctures, so you can ride with confidence and spin further.
Super-lightweight wide 17mm ISM 4D rims for greater comfort and low rolling resistance. The rims are designed with our patented Fore drilling tool to create a stronger connection between the spokes and the rim.
Unlike cheaper Ksyrium models, the Pro is built with Zicral aluminum spokes, which are stiffer, stronger and lighter than traditional steel spokes.
Isopulse braiding improves stability and increases lateral stiffness when sprinting or climbing.
Our exclusive patented ISM 4D process strategically removes excess material from the rim, while keeping it around the spokes where tension is applied.
Each part of the rim is precision machined with just the right amount of material to ensure rigidity and strength, while weighing just 400g.
The wheels are ideal for mountainous as well as hilly terrain.

WEIGHT: (without tires): 1410 g
front 590g, rear 820g

RIM:
Material: Maxtal
Profile height: front 22mm, rear 25mm asymmetrical
Inner rim width 17mm
Outer rim width 22mm
Joining: SUP weld
Drilling: Fore
Braking surface: ground UB Control finish
Weight reduction: 4D ISM machining
Vent hole: 6.5 mm

SPRINGS:
Material: Zicral
Type: straight, flat, double shaded front and rear without drive side
Nipples: integrated aluminum Fore
Number: front 18, rear 20
Fitting: front radial, rear Isopulse

DRIVES:
Body: aluminum
Axle: aluminum
Adjustable, sealed machine bearings
Cylinder: FTS-L, steel

COMPATIBILITY:
25 - 32 mm tires

INCLUDES:
Mavic Yksion Pro UST 25mm tires
BR601 quick releases
UST vents and accessories
Multifunctional wrench for adjustment
Sealing fluid including syringe
Instruction manual