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

Castelli Free Aero Race S Mens Cycling Bib Shorts - Black

£199.00
Size Guide
Castelli Free Aero Race S Mens Cycling Bib Shorts - Belgian Blue
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Castelli Free Aero Race S Mens Cycling Bib Shorts - Black

Season:2025

Brand:Castelli

Code:CS25001BLK

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

Engineered for speed and built for comfort, the Castelli Free Aero Race S Men's Bib Shorts are the ultimate performance cycling bibs, designed to meet the demands of professional riders and competitive cyclists alike.

Developed using aerodynamic Forza2 stretch fabric, these bib shorts reduce drag by 3% in the wind tunnel, helping you ride faster with less effort. Worn by the elite Soudal Quick-Step pro team, they’re built for racing but comfortable enough for long endurance rides.

  • Race-proven aerodynamic fit – Forza2 fabric engineered to reduce CdA (Coefficient of Drag) for improved speed
  • Progetto X2 Air Seamless seat pad – Castelli’s top-tier chamois for exceptional long-distance support and vibration damping
  • Minimalist mesh bib straps – Lightweight and breathable for optimal ventilation and comfort
  • Silicone leg grippers – Secure fit that stays in place without digging in
  • Rear pocket – Ideal for storing race radios or energy gels
  • UPF 50+ sun protection – Shields you from harmful UV rays during sunny rides
  • Rosso Corsa branding – Castelli’s guarantee of premium performance and quality
  • Weight: Just 185g
  • Recommended temperature range: 15°C to 35°C

Ideal for racing, training, or pushing your limits on every ride, the Castelli Free Aero Race S Bib Shorts combine cutting-edge technology with pro-level comfort, making them a must-have for any serious cyclist.

Sizing Information
XSSMLXL2XL3XL
Chestcm889296100105110115
inches34.53637.539414345
Waistcm768084889398103
inches30313334.536.538.540.5
Hipscm909498102107112117
inches35.53738.540424446
Inseamcm81828384858687
inches31.832.232.833.233.533.834.2

HOW TO MEASURE

Grab a tape measure, write down the measurements and compare with our size chart for the right size. For best results, take measurements over your underwear. If your measurements fall between sizes, we suggest that you size up for a better fit.

CHEST: Holding the tape horizontally measure under your armpits with your arms relaxed at sides, around the fullest part of your chest.

WAIST: Holding the tape horizontally measure around your natural waistline, keeping the tape a bit loose.

HIPS: Holding the tape horizontally measure around the largest part of your hips keeping the feet close together.

INSEAM: Using pants that fit well, measure the crotch seam to the ankle bone.

Professional Opinion
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