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Castelli Free Aero Race Kit Version Bib Shorts - Men's

$159.96 $199.95 20% off

Item # CST005K

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  • Black/Drive Blue, S ($159.96)
  • Black/Drive Blue, M ($159.96)
  • Black/Drive Blue, L ($159.96)
  • Black/Drive Blue, XL ($159.96)
  • Black/Drive Blue, XXL ($159.96)
  • Black/Drive Blue, 3XL ($159.96)
  • Black/Turbolence/Red, S ($159.96)
  • Black/Turbolence/Red, M ($159.96)
  • Black/Turbolence/Red, L ($159.96)
  • Black/Turbolence/Red, XL ($159.96)
  • Black/Turbolence/Red, XXL ($159.96)
  • Black/Turbolence/Red, 3XL ($159.96)
  • Black/Yellow Fluo, S ($159.96)
  • Black/Yellow Fluo, M ($159.96)
  • Black/Yellow Fluo, L ($159.96)
  • Black/Yellow Fluo, XL ($159.96)
  • Black/Yellow Fluo, XXL ($159.96)
  • Black/Yellow Fluo, 3XL ($159.96)
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Item # CST005K

Free speed, good looks.

Matching isn’t everything, but it’s sure nice when you can pull it off, especially if you can do it while being relatively devoid of sponsor logos. The Castelli Free Aero Race Bib Shorts you see here are designed to pair perfectly with the jerseys of the same name. You get a great kit, made with superlative fabrics, and don’t look like you stepped off the C-level team bus.

The Free Aero Race shorts are designed to do just what they say — offer free speed through advanced aerodynamic design. Castelli claims a power output reduction of 10 watts at 50kph. Your mileage may vary, but we’ll take it wherever it comes. You’ll be sitting on Castelli’s much-loved Progetto X2 Air chamois, designed to provide comfort and support on the longest rides.

  • Aerodynamically-designed
  • Colors match Free Aero Race jerseys
  • Progetto X2 Chamois

Tech Specs

race fit
Progetto X2 Air
yes, Carré yolk
Leg Gripper:
Giro Air
Claimed Weight:
[size large] 178 g
Recommended Use:
road cycling
Manufacturer Warranty:
30 days

Size chart


Men's Apparel
Chest 36.2in
Waist 31.5in
Hip 37in
Inseam 31.9in
How to Measure:
For best results, take measurements over your underwear.
Measure under your arms, around the fullest part of your chest.
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.
Using pants that fit well, measure the crotch seam to the bottom of the leg.

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Castelli Free Aero Race Kit Version Bib Shorts - Men's

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Here's what others have to say...

Unanswered Question

wanted to know if the castelli logo is now printed or is it still the sticker that they had on previous models.

5 5

the gold standard for bibs

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: Runs small

I have a pair of regular Free Aero's also in XL, and this "kit" version runs a little smaller. They feel a little restrictive while walking around, and the straps take a bit of negotiating the get them to lie smooth, but once you are on the bike, the fit makes sense! No slip, no riding up, no loose spots - just great support and an excellent chamois.

Responded on

If I may ask, what are your waist and hip dimentions? I'm about your same height and weight (maybe an inch taller and 5-10 lbs heavier) and am thinking of getting this bib short but not sure about sizing. (I fall in the XL category according to sizing, but everyone's weight distribution differs, hence my question.) Thanks for your review.