The S11 platform represents Assos's current pinnacle of bib short development, and the Excel Sports R Summer Bib Shorts bring that construction to a shop-exclusive colorway. What makes the S11 generation significant isn't any single feature but rather how Assos rethought the relationship between chamois, fabric, and body movement. The equipe RS-level construction here uses their Type.555 fabric across the main body panels, which Assos developed specifically for their racing line to balance compression with airborne cooling.

The chamois tells most of the story with any high-end bib short, and the S11 uses Assos's EQUIPE RS insert with their striped topsheet design. Those stripes aren't decorative—they create channels that reduce continuous skin contact, which addresses the moisture and friction problems that compound over long hours in the saddle. The insert itself uses variable-density foam that Assos maps to match how seated pressure distributes across different anatomical zones. If you've worn mid-range bibs and wondered what the price jump to flagship models actually buys you, the chamois engineering is where most of that difference lives.

Assos builds these with their stabilizerLight upper construction, which uses a mesh material across the torso that manages temperature regulation differently than the shorts portion. The bib straps themselves sit flat against your shoulders without the bulk that some designs introduce, and the overall fit runs true to Assos's regular sizing rather than the race-cut compression of their Dyora or Cento lines. The leg grippers use Assos's coldBlack elastic interface, which holds position without the tourniquet pressure some brands mistake for security.... Read More