ENVE doesn't just jump into new designs. This is well evidenced by the six years it took to develop the profile of the M60 Forty 29in wheels. To begin with, ENVE left behind the traditional bead hooks for a beadles hook bead. This design is not only lighter, but it just happens to be more impact resistant, a quality sought after on the rocky trails of the Wasatch mountains, which ENVE calls home. The width is 23mm inside, which gives the rim a rounder profile for cornering stability. Additionally, the M60 rims also feature added vertical compliance, for rider comfort, that doesn't compromise the lateral integrity of the wheel. The 29in M60 Forty rim weighs 397g, making it 40g lighter than the previous AM rim, and nearly the same weight as the XC. Each carbon fiber rim is hand built right near us in Ogden, Utah, to exacting standards. They are laced to DT Swiss 240 hubs and are available with either a 6 bolt or Centerlock rotor interface. Additionally, they come with either a standard freehub or an XD driver, making them compatible with SRAM's one by eleven drivetrains.