Enve Wheels

At l,354g for the pair, the 26-inch Enve Composite XC wheels are up there with the lightest cross-country/MTB wheels available.They also sell for $3,389 a pair; that's as much as a decent complete bike and a lot more than alloy wheels of the same weight. Where the Enve wheels vary is in the strength and stiffness that they offer. While they have the weight of a 'race-only' wheelset, Enve says they are strong enough for day-in day-out racing, training and all-round trail riding. To back this up, the all-mountain version of these wheels (with a rim that's only 55g heavier) has been used successfully in world cup downhill competition. In addition to being light and strong, the Enve wheels also feature a UST tubeless inner rim profile. You can also get them in a 1,424g 29er version for $3,498.