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While we've all seen various studies and tests demonstrating that 80mm hoops can save watts on long, straight, calm courses, they may not be exactly what you're looking for when the wind starts to howl or in a downtown crit riddled with 90-degree corners. That's why Mavic designed the CXR Ultimate 60 Tubular Wheelset for aerodynamic benefits that aren't stymied by a little adversity. It sacrifices 20mm of depth compared to its 80mm sibling, but it still possesses all of the other wind-cheating characteristics that define the CXR line, recommending it for criteriums, TT's, triathlons, road races, or as a versatile platform that can transition between virtually every road discipline.
Mavic starts with full 3k carbon fiber to shape the CXR 60's rims, ensuring rigidity and reliable power transfer. This includes a full carbon braking surface, which is a rarity in Mavic's line and is designed to work specifically with the softer, CXR carbon-specific brake pads included with the wheelset. Mavic considered both the wheel and rim profile when designing the CXR 60s rather than the rim alone, as its key focus with the CXR series was achieving truly integrated system rather than a rim and tire working independently of one another. Mavic's engineers paid close attention to the four points of contact the wheels have with the air in the front and at the rear portion of the rim, accounting for differences by shaping each independently to guarantee improved laminar airflow over the entire rim.
Though the profiling is impressive, Mavic's use of its CX01 blades to seamlessly integrate the wheel and tire is what truly sets the wheelset apart from its less-integrated peers. The system involves rings that snap in place in the small area between the wheel and tire to eliminate gaps and ridges in the transition from carbon to rubber. The uninterrupted plane smooths laminar airflow around this often troublesome gap, reducing drag and encouraging the air to flow uninterrupted over the entire system.
In a bid to save grams and increase hub stiffness, Mavic replaced the usual, full-alloy hubs with carbon-bodies mated to aluminum flanges, reducing weight where possible but avoiding the added cost of building up carbon flanges. As any Mavic fan would expect, they're equipped with Mavic's QRM+ bearings. With an allowance for micro-fine, preload adjustments and narrow tolerances, the bearings promise reliable power transfer and a customizable ride that can be adapted to different conditions. Keeping with the lightweight design, Mavic includes Force Transfer System Light in the freehub body to reinforce the contact area between the aluminum hub body and the pawls, which uses two stainless steel inserts to enhance engagement and increase the overall durability of the freehub body.
Mavic laces rim to hub with bladed, straight-pull steel spokes — sixteen up front and twenty at the rear. The front rim features radial lacing while the rear wheel receives radial non-drive treatment with a two-cross drive side lacing, Mavic's Isopulse spoke lay-up pattern. Mavic trusts the proven pairing of its tubular Griplink and Powerlink tires to complete the CXR system, constructing both with a relatively supple 210 TPI and a nylon breaker to dutifully protect your podium plans from ill-intentioned road debris. The front-specific Griplink focuses more on traction, as its name suggests, while the Powerlink tire out back aims for the lowest rolling resistance.
In addition to tires, quick-release skewers, and brake pads, Mavic includes a valve extender, multi-function adjustment wrench, and user guide with the CXR Ultimate 60 Wheelset to anticipate any at-home maintenance you might end up doing. We'd advise you not to fiddle with them the day before a race, but we also admit to occasionally falling into that trap ourselves.
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