We haven't been shy about declaring a bit of love for the standard version of ENVE's M60 Forty HV 29in Boost Wheelset, but that love is well earned. It has proven itself as one of the ideal wheelsets for everything from grinding climbs to gnarly descents at speeds normally reserved for race day. The HV version blows up the internal rim with from 23 to 26mm and widens the hubs to the new 110148 Boost standard to most effectively pair with tires between 2. 3 and 2. 4in wide. The extra tire volume and stiffness afforded by the additional width make the M60 Forty HV wheels the ideal set of hoops for fast all mountain or faster XC racing. The M60 Forty HV model still targets the space between XC and all mountain rims with a blend of lightweight speed and big hit durability that covers the majority of off road riding. The HV model weighs a bit more than the standard iteration, but it's still among the lightest wheels we'd pair with a five inch travel bike. The redesigned, hook less bead is both lighter and more impact resistant than a standard, hooked bead, and the extra width allows for higher tire volume, increasing cornering stability and putting more rubber on the ground at any given time. As with all of its wheels, the M60 Forty HVs feature ENVE's Smart system to create a strong, stable wheel for any conditions. A patented process of molding in spoke holes, nipple seats, and valve stem holes is largely responsible for ENVE's proven reputation of creating wheels boasting the highest strength to weight ratio available in the industry. ENVE routes the carbon fibers around each hole to maintain continuous fiber integrity, which results in both increased rim rigidity and lower weight at the spoke face. When laced to a hub, this system facilitates higher and more uniform spoke tension than standard bladder molding. Additionally, ENVE uses a process that removes the inner bladder during the molding process, resulting in lower weight compared to the many composite man...