Castelli Free Aero Race 4 Bib Short – Men’s

We’ve read the reviews across the web for the Castelli Free Aero Race 4 Bib Short – Men’s and summarize the results below:

Universal Ranking

PeakScore: 89 (out of 100)
User Rating: 4.4 stars 
Expert Rating: 4.5 stars

Number of Ratings Reviewed: 93

Pros & Cons

Reasons to buy:

User Reviews

  • The edges of the chamois are thin to minimize chafing.
  • The material and construction are high-quality.
  • Mesh straps are light and breathable.
  • Fabric is light and supportive.
  • Flat seams are non-chafing and comfortable against the skin.

Expert Reviews

  • The dimpling on the fabric enhances the aerodynamic qualities.
  • The minimalist material keeps you cool during activity.
  • The pad is thicker near your sit bones to provide extra comfort.
  • Softer and more flexible than previous models.
  • The straps are lightweight and breathable.
  • Shorts are comfortable for all-day use.

Reasons NOT to buy:

User Reviews

  • The straps might be too short for very tall riders.
  • There are some issues with finding the correct size, with many reports of the bib shorts running small.

Expert Reviews

  • The sizing runs small.
  • The leg grippers might be too much for some cyclists.
  • The bib straps might be too thin for some preferences.


The Castelli Free Aero Race 4 Bib Short for men is an aerodynamic, comfortable, and lightweight option that is well-suited for intense cyclists who care about their performance, breathability, and long-term comfort. Despite some sizing issues and the straps not being the best for tall riders, this bib short is a great choice for those who want a performance-oriented piece.


Note: User and expert rankings were reviewed across the web. Some expert reviews include these: 1, 2, 3, 4, 5, 6, 7.