Mavic R-Sys Clincher Wheels - $499.25

There are a number of wheels available today that were considered the top dog when they were introduced six or seven years ago, but aren't much to talk about today. Wheel technology is always evolving, and in the cycling industry R & D can fall under three categories -- dormant, dead or evolving. The first two are effectively the same, and the third is where the Mavic R-Sys Wheels land. Since the introduction of the Ksyrium lineup in 1999, Mavic engineers have been constantly evolving the quiver of Ksyrium Wheels. Staying ahead of the design curve, Mavic has lived up to its iconic name by building quality, durable, high-performance wheels. One notable aspect of the R-Sys Wheels is the rim depth. The front rim on the R-Sys is only 22mm deep, essentially the same depth as an Open Pro rim. This makes it lighter, and it has the incidental advantage of being a more stable wheel in crosswinds and at high speeds on descents. The rear rim depth on the R-Sys is 25mm. The reasoning behind this is that it gives the rear wheel added rigidity and resistance to flex, which, according to Mavic, gives it superior power transfer. The R-Sys Wheelset also features the aggressive Inter Spoke Milling (ISM) Mavic uses to trim away all the excess aluminum between the spoke threads and sidewalls. This removal of excess material shaves grams without affecting rigidity or strength.The R-Sys hubs are machined from a single piece of aluminum and feature slightly oversized aluminum axles for increased lateral stiffness that is noticeable 10 minutes into your first ride. The hubs are also equipped with Mavic's QRM+ bearings that are double-sealed for longevity, and each hub allows for micro-fine preload adjustment. The aesthetically appealing tubular carbon fiber TraComp spokes keep the R-Sys group distinguishable from the rest of the Mavic line. - $499.25