Unlike the Ksyrium Zircal offering, Mavic uses steel bladed straight pull spokes, which are not only wholly reliable, but also damp road impacts and help to defeat road vibration, adding some comfort to the rider. The sleek, offset rear hubshell is a machined structure with large aero flanges to accommodate the straight-pull bladed steel spokes. The alloy axle within rides on the micro-adjustable QRM+ sealed cartridge bearings, which are fast and smooth and can be easily adjusted while the wheel is mounted in the dropouts. The lightweight alloy FTS-L freehub engagement system is fast and reliable, as well as being easy to service and interchangeable. Mavic uses 20 spokes on this rear wheel, laced radially on the non-driveside, and 2x on the driveside. The scultped front hub uses the same oversized alloy axle and QRM+ design and also features taller aero flanges, that the spokes just disappear into. The high tension system creates a stiff wheelset that will rarely need truing. The bladed spokes, slightly elliptical rim shape, sleek hubshell and hidden nipples result in a responsive, fast rolling, aerodynamic wheelset.

To complete the wheel-tire system, Mavic includes their Yksion Pro Powerlink / Griplink SSC 700x25mm clincher tires. The single compound rubber is different rear and front, respectively. The Powerlink rear features a wide, harder durometer center for limited rolling resistance, and directional grip for fast acceleration. A wider poly breaker reduces the risk of puncture. The outer shoulders use a softer application of the same rubber, which ensures terrific grip when leaning over. The Griplink front is slightly softer in the center and on the shoulders, for better cornering grip. The poly breaker is narrower, as the front tire carries much less weight. The overall Yksion Pro tech includes a directional tread design, with angled channels that help with grip and sipe water away from the center section. The carcass is a 127tpi nylon casing which augments the rubber and has a true rounded shape. In between the rubber and the casing a wider Kevlar breaker is supple enough to match the casing, and has good puncture protection. These 210 gram 25mm tires are rated to 110psi, and combine with the elliptical rim for improved aerodynamics.

You also get Mavic's recommended carbon brake pads for Shimano/SRAM style pad holders, a set of 100/130mm BR601 quick release skewers, a multi-function tool for QRM+ adjustment and tubes. When the Cosmic Carbone 40C Wheelset was released it represented a new step forward in a carbon aero rim. The alloy insert greatly improved braking-induced heat management, stiffness and durability. Ideal for larger riders who still want lightweight aero performance, this clincher wheelset is sought after by cyclists and triathletes who can not only feel the difference, but require the performance Mavic delivers from this hybrid design. The TgMax technology opened a new direction for the company and no you see versions of the technology applied to many of their wheels. Stay true and trust in Mavic to bring you the best wheel options for you, not just the latest-greatest lightweight creation that won't deliver half the performance of the standout Cosmic Carbone 40C Wheelset