The Princeton Peak 4550 Wheelset is their lightweight set that aims to be nothing short of King of the Mountains. Coming in at just 1,348 grams for the disc brake version, this wheelset will fit right in with your lightest climbing bike. In addition to its lightweight nature, the carbon layup of these wheels makes them stiffer, stronger, and more aerodynamic than your typical climbing wheels. The Peak 4550 Wheelset is targeted to appeal to World Tour and Grand Tour riders, but of course they are great for any serious road racer or rider. Their exceptional aero characteristics help transfer watts directly to the ground. The stiff carbon layup creates a prime platform for handling and acceleration as well. Climbers love these wheels not only for their low weight, but their excellent responsiveness. Topped off with an elite Tactic Racing Gold Hub, the Princeton Peak 4550 Disc Wheelset is a prime choice for lightweight performance.