Santini Trek Factory Racing Men's Cycling Bibshorts (Navy Blue) Frame-Rimless the 400 features our proven

the 400 features our proven double butted aluminium frame

Zoom Ace: Finely adjustable adjustment system with a handy adjustment wheel for a customizable fit

This product comes into the Castelli lineup as a direct request from Timothy O’Donnell when he wanted to do better than his fifth place Kona finish

With sizes ranging from a svelte 41mm all the way up to a hefty 4

and performance aiding ingredients such as Betaine & Beta-Alanine

Santini Trek Factory Racing Men's Cycling Bibshorts (Navy Blue) Frame-Rimless the 400 features our provenPart of the Trek Factory Racing 2025 Collection, these cycling shorts are designed to offer excellent comfort and performance in the challenges of cyclocross. Made from soft, compressive fabric, they provide optimal muscle support and a snug fit, perfect for tackling difficult terrains and demanding races. The elastic band with silicone grip inside the thighs ensures that the shorts stay in place even during the most dynamic phases of cyclocross.