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  • Castelli Free Aero Race 4 Bib Short - Men's
  • Castelli Free Aero Race 4 Bib Short - Men's
  • Castelli Free Aero Race 4 Bib Short - Men's Back
  • Castelli Free Aero Race 4 Bib Short - Men's Back
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CastelliFree Aero Race 4 Bib Short - Men's
$199.95

Item # CST00RY

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Item # CST00RY
Description

Free Aero Race 4 Bib Short

The Free Aero Race 4 Bib Short from Castelli is built using extensive feedback from the professionals on Team Sky. Its general consensus is the existing Free Bibshort was already pretty well dialed and the only requests were the addition of a loop in the bib to hold a race radio microphone and one rider wanting his chamois shifted back a bit. Team Sky isn't the only one who likes it, in fact, the Free Aero Race Bibshort is the best-selling Castelli short of all time, so it knew that when it was time for an update, it wanted to make it better but not change the shorts too drastically.

First up is a new leg gripper that still features a lie-flat, raw-cut edge but now has vertical silicone stripes to hold it comfortably in place without restricting stretch. Next is a new fabric that allows for better print quality and Castelli updated the seams to improve the fit and looks. It also re-engineered the bib straps with new fabrics and construction so they help you stay cooler, lie flat, and are more durable. Finally, it also receives the updated Progetto X2 Air seamless seat insert featuring one of the softest surfaces we've ever felt in a chamois.

  • Castelli's most popular bib short, newly updated
  • Vortex dimpled fabric on the legs boost aero performance
  • Forza fabric on the inner legs stretches for a perfect fit
  • Stripe mesh engineered minimalist bib construction keeps you cool
  • Giro4 leg gripper elastic distributes the grip over a larger area
  • Doppio V construction up front increases support and comfort
  • Flat-lock stitching reduces irritation
  • Progetto X2 Air Seamless seat insert cushions against road chatter
Tech SpecsSize
Tech Specs
Material
[legs] Vortex dimpled fabric, [inner thighs] Forza fabric with 38% Lycra
Season
spring, summer, fall
Fit
Form-Fitting
Chamois
Progetto X2 Air
Bib
yes
Leg Gripper
Giro4 elastic
Recommended Use
gravel, road cycling
Manufacturer Warranty
1 year
Size

Castelli

Men's Apparel
 SMLXLXXL3XL
Chest

36.2in

(92cm)

37.8in

(96cm)

39.4in

(100cm)

41.3in

(105cm)

43.3in

(110cm)

45.3in

(115cm)

Waist

31.5in

(80cm)

33.1in

(84cm)

34.6in

(88cm)

36.6in

(93cm)

38.6in

(98cm)

40.6in

(103cm)

Hip

37in

(94cm)

38.6in

(98cm)

40.2in

(102cm)

42.1in

(107cm)

44.1in

(112cm)

46.1in

(117cm)

Inseam

32.3in

(82cm)

32.7in

(83cm)

33.1in

(84cm)

33.5in

(85cm)

33.9in

(86cm)

34.3in

(87cm)

How to Measure:
For best results, take measurements over your underwear.
Chest:
Measure under your arms, around the fullest part of your chest.
Waist:
Measure around your natural waistline, keeping the tape a bit loose.
Hip:
Measure around the fullest part of your body at the top of your legs.
Inseam:
Using pants that fit well, measure the crotch seam to the bottom of the leg.

Reviews & Community

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Avg. ride time: 1h 31m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Stylish but uncomfortable

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: XXL

This is a great bib if you prefer style over comfort. I wore these for about 2 hours and the chamois did nothing to alleviate the discomfort of my perineum. It was a relief to stand up in the saddle when I could. I will say that I did like the leg grippers and the look of the bib. They also fit pretty well, but every rider is different and these just didn't do it for me.

Avg. ride time: 5h 58m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Way better than last year's version.

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

I've always got on good with castelli bibs but the pad usaully only last a season. The new pad seems to be made out of a different material so hopefully they last a little longer .the leg length is also longer then last year's. over all great improvement . Glad I stuck with castelli . A steal on sale .

Amazing looks and comfort

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

I originally bought the size small but they were extremely tight, went up to a medium and i am glad i did. Just did a 60 mile ride this weekend and the bibs practically disappeared. These look great and the chamois is even better (and it is softer than my other Assos and Castelli Bibs). Keep in mind that the blue is actually more of a grey but they still look amazing. I am 5'8" and 152lbs for reference.

Race Ready

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: Large

These are actually my first Castelli bibs and they certainly won't be my last! The Progetto X2 Air chamois is quite comfortable for longer days in the saddle. These are a quality product thru and thru. As far as sizing, be sure to size up. I am a size Medium in most other bibs but these Free Aero's in size large feel like a snugger medium to me.

A New Favorite

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: XL

Quite impressed by these bibs. Castelli's Free Aero Race shorts have always been a favorite and it looks like these will be at the top of the pile in my closet. Materials are excellent - the Progetto X2 Air chamois has padding in all the right places without excess bulk, the main fabric of the legs is compressive yet lightweight (I expect these will breathe well in summer), and the bib straps seem to lay especially well against my body and are once again quite airy. Usually I prefer seamless elastic bibs (like Giordana uses) but I have no complaints here. Even without the dimpled material on the legs I'm not winning races but it certainly makes me feel fast. Some of Castelli's lesser pieces have had occasional quality issues with the sewing of the seams but construction is excellent here. Lastly the leg grippers are wide and unobtrusive and the inseam length is perfect.

Once again, the fit is compressive to reduce muscle fatigue in hard efforts or on long days. If you're not familiar with Castelli, in general their apparel runs smaller than American brands and sometimes even a bit smaller than European brands. I wear a large bib in Assos, Giordana, and Pearl Izumi's PRO line, I went up to an XL in this for the strap length as Castelli's straps run short and dig into my shoulders in smaller sizes. The XL's straps are perfect and while I was worried that the body of the bib would be loose and baggy, that's not the case at all due to the compressive material. So if in doubt, size up!

Great Bibs!

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: Small

These bibs are really nice. Much better than the previous version. They are more durable and they are super comfortable. The material is a bit stronger, so they will last. They are quiet comfortable for those long days in the saddle. The material of the bibs is also super comfortable. Well worth it!