Mavic's Ksyrium line has been nearly without reproach since it was created, but recently, all but its most loyal fan base have wondered whether the French brand was refusing to acknowledge the industry wide move toward wider rims or was just falling behind. Dedicated Ksyrium users and casual observers alike will be interested to hear that the entire Ksyrium line was updated this year, and a new addition was added to the group. The Ksyrium Pro Allroad Disc Clincher Wheelset is ready to embrace the off road gravel trend. It was designed to replicate the responsiveness and dependability the line is known for with a gravel friendly, 19mm internal rim width to firmly silence any talk of the brand refusing to innovate. Mavic offers the Allroad Disc in a 25mm and 28mm version, both of which offer improved traction for rough roads and packed trails. The wider tire platform also reduces rolling resistance for a more efficient ride. Mavic's concern for rider safety informed it's move toward wider rims, and it recommends using tires 25mm or wider with the Allroad Discs. To construct the milled rims themselves, Mavic uses its Inter Spoke Milling 4 Dimensions ISM 4D, which involves machining non essential material from the rim to reduce weight, but keeping it around the alloy spokes to give the rims the strength and stiffness you'd expect from anything in the Ksyrium line. This process also lowers the rotating mass of the wheel for better responsiveness and acceleration than non milled rims making sure these wheels stay snappy in power sucking loose gravel or on poorly maintained side roads. The rim width wasn't the only part of the Allroad Disc that Mavic decided needed an update the brand also reworked its hub design, introducing the Instant Drive 360 freewheel system. The system replaces the formerly used pawls with two interlocking, ratcheting rings that Mavic claims engage every nine degrees. In addition to faster engagement, the hubs are now easier to maintain ...