This all-new UST Road Tubeless wheel is so fast we had to re-engineer it for better braking. Fly up climbs, descend with supreme confidence.

The pinnacle of carbon clincher performance, the all-new Cosmic Pro Carbon SL UST combines lightweight aero design with our all-new UST Road Tubeless technology. The result is an incredibly capable all-rounder with super low rolling resistance; a smoother, more comfortable ride quality; and the added security of a reduced risk of punctures. Plus, it’s the most user-friendly tubeless system when it comes to installation, removal and maintenance. As a pioneer in tubeless technology with our proven UST system, Mavic gives you the confidence that comes with our history and expertise. The rim design of the Cosmic Pro Carbon SL UST features a 19mm inner width that’s ideal for 25mm tires. The aerodynamic NACA profile reduces wind drag and improves crosswind stability. The rim is produced with layers of continuous carbon fiber to achieve a unique one-piece contour straight out of the mold. This technique, which we call iTgMax, offers superior heat management, allowing the rim to withstand temperatures up to 200° C. Our unique molding process and laser machining achieves a consistent braking track with nearly zero surface variations. This results in the shortest braking distances in both dry and wet conditions, with superior consistency. The hubs feature our lightweight, fast-engaging Instant Drive 360 freewheel system, laced with our patented aero spokes. And the system is completed with our Yksion Pro UST tires, which provide a simple, hassle-free tubeless road setup with high rolling efficiency and maximum grip in all weather. The Cosmic Pro Carbon SL UST works with 6-Bolt and Center Lock rotors and Shimano or SRAM cassettes. It’s convertible to Campagnolo or SRAM XD with optional driver bodies.

Roll faster and smoother with a reduced risk of punctures
With UST Road Tubeless, no tube means no friction. So you experience less rolling resistance and higher speeds. UST Road Tubeless lets you ride with lower tire pressure for a smoother ride quality and a reduced risk of punctures Our patented UST system offers a perfect union between tire and wheel, so installation, removal and maintenance are easy

Accelerate, climb and sprint with less effort
UST system (including sealant) is 40g lighter than a traditional tire and tube system Aero-shaped rim features NACA profile for lower drag and improved crosswind stability 25mm external width for improved rim/tire integration and superior handling in all conditions Patented elliptical spokes further enhance aerodynamics

Descend with more confidence and control
iTgMax technology carbon rim material can withstand temperatures up to 200° C Laser process removes resin from brake track while leaving carbon intact, producing predictable braking performance in dry or wet conditions

Efficiency & rigidity
Isopulse
QRM+
Instant Drive 360

Label
SSC

Rims
Material: 3K carbon fibers
Height: 40 mm
Drilling: traditional
Brake track: carbon with iTgMAX technology
Valve hole diameter: 6.5 mm
Tyre: UST Tubeless and tubetype
Internal width: 19 mm
ETRTO size: 622x19TC Road

Spokes
Material: steel
Shape: straight pull, aero, double butted
Nipples: aluminum, ABS
Count: front 18, rear 24
Lacing: front radial, rear Isopulse

Hubs
Front and rear bodies: aluminum
Axle material: aluminum
Front bearings : adjustable sealed cartridge bearings (QRM+), Rear bearings : auto adjust sealed cartridge bearings (QRM Auto)
Freewheel: Instant Drive 360

Tyre
Yksion Pro UST
UST Tubeless Ready
Front and Rear Tread: 11 Storm single compound
Casing: 127 TPI
Breaker: Polyamide, from bead to bead
Dimension: 25-622 (700x25c)

Versions
Color: Black only

Compatibility
Freewheel: Shimano/Sram, convertible to Campagnolo and XD-R with optional driver bodies
Front axle: Quick Release only
Rear axle: Quick Release only

Delivered with
Mavic tyre sealant (rear wheel)
BR601 quick releases
Tyre sealant syringe
Carbon brake pads
UST valve and accessories
Tubeless rim tape
Multifonction adjustment wrench
User guide

Label
SSC

Intended use
ASTM CATEGORY 1 : road only
For a longer longevity of the wheel, Mavic recommends that the total weight supported by the wheels don't exceed 120kg, bike included
Recommended tyre sizes: 25 to 32 mm
Max. Pressure tubeless: 25mm 6 bars - 87 PSI, 28mm 5 bars - 70 PSI. Max pressure tubetype: 25mm 7 bars - 102 PSI

Filters
brake type: carbon
brake type: rim
field: rolling
rim profile: medium
rim: carbon
tubeless: yes
tyre type: clincher
tyre type: tubeless
weight: 1301g to 1500g

Efficiency & rigidity
Instant Drive 360
UST
UST Tubeless Ready
11 Storm
Isopulse
QRM+
QRM Auto

Safety & reliability
iTgMAX

Weight Front   665
Weight Pair   1490
Weight Rear   825
Weight Tyre 700x25   260