Brutal, switchbacking climbs and burly, high-speed descents are no match for Crank Brothers' Iodine 3 Wheelset. These all-mountain wonders boast tubeless-compatible aluminum rims that keep the weight down to 1,765 grams for the set. They have the looks and function down, too, with machined aluminum hubs rocking sealed bearings that feel like they'll spin forever. And, the extended aluminum nipples simplify the truing process and maximize wheel stiffness.