Mavic brings the stopping power and control of disc brakes, and a UST Tubeless compatible aero rim design to the Cosmic Elite UST Disc design to offer advantages for entry-level triathletes and road racers seeking the aero advantage of the NACA compliant 30mm profile aluminum rim. The Mavic Cosmic Elite UST Disc Rear Wheel is built with familiar and tested Mavic technology to deliver a wholly affordable, high mileage wheel and tire system. The Center Lock disc, 12/142mm thru-axle equipped hub sets the tone for modern aero wheels. The wheel features 24 spokes, laced 2x all around, delivering a smooth, sleek ride at top speed over the pavement of your next sprint distance event or industrial park criterium.

The rim features Mavic's lightweight, but resilient S6000 aluminum with famed the SUP welded joint that makes that adds the strength that UST requires. The drilling is traditional for Mavic's ABS nipples. The UST Tubeless Ready rim bed carries that 30mm profile, in a 24mm external width, 17mm internal. UST is a true standard, and mastered by Mavic. The short bed and rounded hook hold UST Tubeless tires in a perfect seal, allowing you to run 700x25-32 tires at 110psi max, but in reality, you will run lower pressures to create better grip and feel, while preventing all but the most serious pinch flats. Sealant can certainly be used, but if you are using UST rims and UST tires, you'll be shock at how well the system seals.

The rear hub is machined from aluminum, and set up for 12/142mm thru-axle use. It can be optionally set-up for standard 135mm dropouts and a quick release skewer. The bearings are Mavic's proven self adjusting QRM Auto sealed cartridge design and the freehub system is the impressive Instant Drive 360 9° engagement, alloy freehub. The axle is oversized, in alloy, for added stiffness and reliability at lighter weight. The flanges are set-up with Mavic's floating spoke retention for straight pull spokes. Essentially, a hard impact on the rim pushes down the spokes, which if they don't give in some way, can result in rim damage. By allowing the spokes to slide a little, Mavic does all they can do to prevent this. The spokes themselves are black, bladed steel. The 24 spokes are laced 2x on the drive side, 2x on the non-drive side for balanced tension and great power transfer at acceleration. The Center Lock spline disc rotor interface quickly and positively centers the rotor and is simple and easy to use.

Mavic provides their 260 gram, 127 TPI Yksion Pro UST tire in a 700x25. It can be run with a tube or as tubeless. This single compound tire features 11 Storm rubber ( via Hutchinson), which has very low rolling resistance, and easy, fast speed. The best performance of the tire is when run tubeless, and just 30 grams of sealant serves to seal the deal and close out small punctures. Despite the stringent requirements of the UST system, the Yksion Pro UST Tire also installs much more easily than most road tubeless tires due to the more flexible Kevlar bead. A directional tread sits within the rubber, siping away water from the center and ensuring grip in the corners, wet or dry.

For the money, the performance and technology of the Mavic Cosmic Elite UST Disc Rear Wheel truly can't be beat. Now it up to you to deliver on your training and commitment to meet that standard.