Mavic's Exalith 2 braking system offers exceptional all-conditions stopping power and feel, and when found on a Ksyrium wheel, the all-rounder gets even better. The Ksyrium Pro Exalith Rear clincher wheel is built with a full complement of Mavic technology, with its machined Maxtal rim, QRM+ bearings, Zicral spokes and much more, and has the lighter weight 15mm internal rim width that Ksyrium riders know and love. The changes over time have been refinements to the well proven concept that is light, fast, and durable, but adding Exalith 2 is a substantial upgrade. Both serious enthusiasts and racing cyclists alike have long enjoyed the serious, highly predictable performance of the Ksyrium, especially when cornering and sprinting where trust is everything, and with Exalith 2, braking in the rain exceeds the overall performance.

The Ksyrium concept starts with Maxtal extruded alloy rims and Fore support and drilling. The rim is machined to reduce weight at non-crucial areas, and the ISM 3D milling process removes material between the spokes and just onto the sidewalls. This drops rotational weight for faster acceleration while the shaping improves aerodynamics. The double-butted Zicral spokes thread directly into the rim via a nipple carried by the spoke. The spoke holes are reinforced through lower rim bridge, leaving a sealed outer rim wall. The Zicral spokes are a flat, bladed design cable of very high tension. The rims are front and rear specific, with a 24mm profile. 20 straight-pull spokes are laced IsoPulse- 10 radial on the drive side, and 10 2x on the non-drive side for incredible lateral stiffness, energy transfer and perfect tracking at any speed.

Exalith 2 is a chemical treatment of the rim that penetrates the alloy to strengthen and add an even friction to the braking surface that is exceptionally durable and increases braking by around 20% in wet conditions over standard machined rims and normal pads. Mavic provides black, Exalith-specific brake pads are durable, quiet, and formulated to work perfectly with the rim treatment. ... Read More