Code: WINTER50—Spend $250, Save $50 »

Castelli Free Aero Race Bib Shorts

Out of Stock

Item # CST0789

Don't worry though, we have a lot more Men's Bib Shorts in stock than that.

View Similar Products
Item # CST0789


Free is tested and proven after hundreds of thousands of miles ridden by professional cyclists. Free remains cool under pressure. Free is comfortable, while producing pure, aerodynamic speed. Free is racing in the Castelli Free Aero Race Bib Short.

  • Progetto X2 Air insert offer's Castelli's unmatched comfort and moisture management for long, hot rides
  • Straps are angled to leave your chest unobstructed to help avoid overheating
  • Giro3 elastic grippers keep the short in place, while matching the Free Jersey hems
  • Mesh pocket on back of straps house a radio to keep you in communication with your director sportif
  • Matches perfectly with the rest of the Castelli Free kit, right down to the cap and gloves

Tech Specs

Action Micro, Energia LycraPower, Breathe LycraPower
race cut
yes, Progetto X2 Air
Removable Chamois:
1 back audio
Recommended Use:
cycling, training, racing
Manufacturer Warranty:
limited lifetime

Size chart

Castelli Men's

Note: Castelli has a "Euro" slimmer fit. We suggest ordering at least one size larger than your normal US size.

Bike Apparel
Chest 35.5-37.5in
Waist-Tops 29.5-31.5in
Waist-Bottoms 30-32in
Hips-Bottoms 36.5-38.5in
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
Natural Waist:
Measure around your natural waistline, keeping the tape a bit loose.
Measure around the fullest part of your body at the top of your legs.

Reviews & Community


Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?


Product Fit:

Runs smallTrue to sizeRuns large

Add Your Size


Height (ft, in):

Weight (lbs):

Size Purchased:

Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel

Here's what others have to say...


Quality Issue

    Experienced the same quality issue mentiioned on one of the reviews. The stitching on the chamois failed after first ride and got worse. Currently in the process of returning the item. Will probably get a Capo replacement.


    Great Bibs -

      Love the look and the chamois, these run small compared to other brands... normally a L in Hincappie, need XL with Castelli

      Avg. ride time: 4h 22m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      Great Graphic, runs small

        I ordered a second pair of these because I like the"look" and the pad is Castelli's best; same as in their "skin" bibs. First pair got a hole in them after only a couple of wears/washes. I own many other pairs of Castelli shorts and the small is just a bit loose in most cases, but these are really, really tight. I ordered a M replacement because I thought maybe the hole was because they were too small and stretched too tightly. I hope that's the case and not a quality problem like the other reviewer mentioned. I will definitely look them over carefully when they arrive. I had one other time when Castelli seemed to run small. My guess is that they use different sizing for their European distribution and American distribution, and once in a while they get a European sizing over here. Anyway, definitely recommend at least a size larger than you normally order in Castelli.


        Poor quality.

          Big fan of Castelli; however, the quality appears to be going in the wrong direction. Had to return two pairs of these bibs due to stitching of the chamois not being complete. Finally gave up. I have and use other Castelli bibs in the same style, no issues. I really don't find subjective statements to be much help. So two pairs, both with the same issue should be objective enough.

          what is the inseam length on the Aero Race...

          what is the inseam length on the Aero Race bibs?

          Hey ofe5474839,

          Thanks for your question. The Castelli Free Aero Race Bib Short - Men's have a 9" inseam on the Medium size and it most likely goes to 10" in XL and beyond.