Castelli - Free Aero Race S Short - Men's - Black - 2026

Castelli - Free Aero Race S Short - Men's - Black

Developed to meet the demands of the performance cyclist.

From your local training route to the world's toughest bike races, the Free Aero Race S Short was developed to meet the demands of the performance cyclist. When you swing a leg over a bike, the first thing you want out of your shorts is comfort. The Forza2 Stretch fabric molds to the body without constriction, allowing the fabric to move with every pedal stroke. The silicone grippers at the leg endings keep the short in place right where you want it. And, of course, we've used our Progetto X2 Air Seamless Donna seat pad so you can stay comfortable even on the longest training days. In the modern world of performance cycling, aerodynamics has quickly become one of the most important components. After countless hours in the wind tunnel, we've aero optimized the short to give you a 3% decrease in CdA, making it the fastest Free Aero Race Short we've ever created. This means every watt you produce can be used to make you go forward faster.

Aero-optimized Forza2 Stretch fabric for maximum comfort and aerodynamic advantage
Aero-optimized fabric delivers 3% decrease in CdA
Silicone leg grippers to keep the leg endings in place
Progetto X2 Air Seamless Donna seat pad for comfort even on your longest rides
Fabric rated to 50+ UPF protection

Comfort and aerodynamics meet in the fastest, most comfortable Free Aero Race Short to date.

Comfort and aerodynamics meet in the fastest, most comfortable Free Aero Race Short to date.

The Brand:

Castelli has been passionate about the cycling world since the very beginning. They have had an innovative eye even way back in the 1900's. They have been a well known brand in the cycling world for so long that it would be practically impossible to not know their name. Everyday Castelli looks towards the future to freshen up their designs and be a leading company for all cycling events. You would have to be living under a rock to not know their name and to miss out on their top products. 

Call us today at MyTriathlon on 0207 183 4116 or contact us via WebChat for friendly, expert advice and for answers to any sizing or specific product queries you may have.