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Castelli Free Aero Race 4 Bibshort

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SKU
L19003
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✔ Vortex dimpled fabric on legs for aero performance
✔ Forza fabric on inner legs with 38% Lycra® content for perfect fit
✔ Stripe mesh engineered minimalist bib construction keeps you cool
✔ GIRO4 leg gripper elastic for better grip distributed over larger area
✔ Doppio V construction in front for increased support and comfort
✔ Flat-lock stitching
✔ Progetto X² Air Seamless seat pad
✔ WEIGHT: 172g (Large)
✔ 15°-35°C / 59°-95°F
The Castelli Free Aero Race 4 Bib-short is the race cycling short worn by Team Sky and all the other race teams sponsored by Castelli over the last decade. Champions such as Chris Froome and Geraint Thomas and work-horses such as Wout Poels have won wearing the Aero Race bib-shorts. Through extensive research in both wind-tunnel testing and pro rider input, Castelli has improved their fastest race bib-short by making it faster and more comfortable. In order to make it lighter-weight without compromising its performance enhancing features fabrics have been tweaked for that extra advantage. The main fabric, a Vortex dimpled fabric, brings in air so a cyclist slips through the air on his bike. This improved feature decreases drag and circulates air which makes a racer faster and it keeps him drier. On the inner leg, the smooth Forza fabric doesn’t rub against the seat making each pedal stroke comfortable and it helps the durable shorts maintain their form. On the front, a double V construction reduces the amount of material used which cuts down on weight and takes pressure away from the stomach. The strip meshed bib-straps are both lighter and more comfortable while still keeping the shorts comfortably in place. Through the combination of a V construction, the fitting fabrics and the GIRO4 leg gripper elastic, the Aero Race Bib-short provides a next-to-skin feel for the racer. The bib-short moves in harmony with a cyclist’s body. Castelli’s Progetto X² Air Seamless seat pad is the fastest, most comfortable chamois pad. The design started at the request of the pro-racers who told Castelli they need protection without too much bulk interfering with their aerodynamic position. Castelli responded by creating a four-way stretchy microfiber top that has the softest padding you will ever feel. By bringing in the views of pro-racers who train and race 30,000 miles per year, the varying padding has been placed in just the right locations to protect a rider’s seat area. Perforated viscous padding is added under the highly sensitive ischial and perineum pressure areas to maintain comfort on the long rides that are required to heighten a rider’s performance. The padding thins where the bulk is unnecessary so as to minimize weight and allow for an efficient pedal stroke. The seat pad is also well ventilated so a rider doesn’t get a clammy seat