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CastelliFree Aero Race 4 Bib Short - Men's

Sale 25% OffCurrent price:$149.99 Original price:$199.99

Item # CST00RY

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Item # CST00RY
Description

Why We Like The 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 Specs
Material[legs] Vortex dimpled fabric, [inner thighs] Forza fabric with 38% Lycra
Seasonspring, summer, fall
FitForm-Fitting
ChamoisProgetto X2 Air
Bibyes
Leg GripperGiro4 elastic
Manufacturer Warranty1 year
Activityroad cycling, gravel
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.

What do you think about this product?

View

>Rating: 4

My go to bibs

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
Medium
Height
5` 8"
Weight
157 lbs

I absolutely love these bibs. My go to for spring, summer and early fall. I wear a medium, 157lbs, 5'8'', 31 inch waist with a 30" inseam, I'm built like a swimmer with a long torso and shorter legs and these fit perfectly

>Rating: 4

The Big Squeeze

Familiarity:
I've used it once or twice and have initial impressions
Fit:
Runs small
Size Bought
L
Weight
170 lbs

So, yeah, nothing new when it comes to these bibs; they’re small for their size and the chamois is awesome. The straps are tight. But I didn’t notice them once while riding. I’m a slender 6’ 170# and wear the large. If I were same height but larger, I’ve no doubt I’d need an X-Large. They’re well constructed, comfortably tight and I’m hopeful they’re good for the long haul!

>Rating: 2

Pretty Awful Bibs

Familiarity:
I've used it several times
Fit:
Runs small

Like others have said, this pair of Castelli’s misses the mark. First, they run extremely small to a point of where the sizing doesn’t even make sense. They’re maybe 2 sizes off (small). My other Castelli’s size just fine and I’m not sure what they’re doing here. Second, the straps are complete garbage. They’re extremely narrow, uncomfortable and have sewn on seems that dig into your shoulders. Why not just use a one piece design here like most other shorts. Dumb. The chamois is nice, no complaints there. But overall this is a $200 pair of bibs that are just not on part with even $100 bibs. Disappointing product. I would not recommend this to anyone.

>Rating: 3

Way too small

Familiarity:
I returned this product before using it
Fit:
Runs small
Size Bought
Large
Height
6` 0"
Weight
175 lbs

I had to return the Large. It was about 4 inches shorter than my Large Gore C5 bibs. Too small. The chamois seems very nice. I'm not sure about the straps. It seems like they would dig into the shoulders too much, especially as tight as they are.

>Rating: 3

Not for my legs

Fit:
Runs small
Size Bought
S
Height
5` 8"
Weight
130 lbs

I'm sure they fit other folks fine, but these just didn't fit me. They were tight and very long: so long that the grips hung loosely around my knees. I've never thought of myself as short-femured until I tried these on. The materials and pad all seemed superb, and I wish I could have kept them, but alas! I had to return 'em.

>Rating: 5

I love these bibs!

Familiarity:
I've put it through the wringer
Fit:
Runs small
Size Bought
Large
Height
6` 0"
Weight
175 lbs

I have 2 pair of these now. They are so comfortable and the performance built into them is incredible. For the long days in the saddle, the chamois is top notch. It never shifts around and never gives me sore sit bones. My favorite part is that the chamois is vented and pulls sweat away from the body without soaking it up. Other bib brands I have tried start out good but soak up sweat or shift around during the ride and lead to discomfort later on. Fit wise- they run slightly small. I usually wear a 33 or 34 waist pant. I went with the Large in these and that turned out to be the correct fit. I usually wear a M in other bibs. I'm not cramming myself into them, but like the name implies, they are a race fit. Others have commented about the shoulder straps feeling tight. I agree in part. I might notice it when I first put these on, but on the bike, don't notice them and there is never discomfort. I'm glad I gave these a try. Now get off your computer and go ride!

>Rating: 5

Castelli Knocks it out of the park

Familiarity:
I've put it through the wringer
Fit:
Runs small
Size Bought
Large
Height
5` 9"
Weight
190 lbs

Fantastic bibs. Love the new style leg grippers. Runs on the small size. Comfort, fit and support all in one.

Does your tag say made in Romania??

>Rating: 3

Tricky fit, flimsy materials

Familiarity:
I've put it through the wringer
Fit:
Runs small
Size Bought
XL
Height
5` 11"
Weight
180 lbs

The chamois is comfortable. The colors look good. The bibs straps are too sheer and are prone to tearing on the thin webbing (see photo). Castelli are known to "run small," but it's more like a "skinny-fit," where sizing up does not fully solve. This is true of these bibs and also the brand of jerseys. It is also a less stretchy material than other brands so that makes fit trickier.

The

Does it say made in Romania on the inside ??

>Rating: 1

Terrible product

Familiarity:
I've put it through the wringer
Size Bought
Medium
Height
5` 8"
Weight
165 lbs

I've worn every previous version of these bibs, which all had their problems, but Castelli widely missed the mark on the 4's. They're too long, the leg-grippers are too wide, the shoulder straps are thin and fit terribly, along with the added bonus of the usual peeling scorpion heat patches. I've switched to Giordanna, and there is a world of difference in quality and fit.

I like the Castelli better, but the straps are so thin they're like women's hose. Also, I have wide sit bones and the Giordanna's chamois is just a bit too narrow to give me full coverage. I can wear them once toughened in a month or two into the season, but I rotate my shorts as they all hit me differently. As for over-all quality, the Giordanna are much, much better, and it all comes down to materials. The Castelli are made in Romania and the workmanship is excellent, but the materials are more suited for lingerie than sports gear. I almost cried when I had to return my Castelli 4s. If only they could use some decent strap materials! A VERY helpful tip with these is NEVER, EVER wash them with anything that has Velcro in it. The hook side of Velcro just rips the strap material to shreds no matter how gentle you think you are. I don't even think a delicates bag would fix this problem. My RoadID shredded mine, but then so did the Velcro on my gloves, and it wasn't very toothy. I think PI still has the best all-around bib-short going, but they do tend to bunch up on hot days when you sweat a lot and the very cushy chamois gets wet. This was when I would wear my Castelli 4s - until they got shredded, and it only took ~ 10 rides/washes to destroy them. There's just no amount of careful that is going to make them work. SMH. What a shame. If you're cyclist skinny, go with Giordanna. They are like a Brooks Brothers suit. Wear and wear and wear, and quality everywhere, they just don't have the leg squeeze or quite as good a chamois as Castelli. NOTE: My review is for the 2020 Castelli, Giordanna and PI bib shorts. Looking at the pics though, I don't think Castelli has fixed the strap problem.

>Rating: 5

Bought a second

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
S
Height
5` 10"
Weight
130 lbs

I've loved Castelli bib shorts for a while and these are better than ever, so good I bought a second pair after trying on the first! They fit perfectly for me based on their size guide, aero and to the skin but not too tight.

Do yours say made in Romania on the inside ??

>Rating: 5

1-They Run Small 2-They are AMAZING

Familiarity:
I've put it through the wringer
Fit:
Runs small
Size Bought
XL
Height
6` 0"
Weight
210 lbs

For transparancy, Castelli is my brand. (I haven't found need to even consider alternatives.) With that, these babies take the cake. Everything about these bibs are just right to me. I normally wear a L (6'0" 210 lbs.-lifelong footballer build) in all things Castelli, but other reviews are true, maybe more so for these than any other Castelli product, these babies run small...Order at least a size up, please! I got the XL and they were a delicious race fit. If it's possible to feel faster, these do it. The leg length on these is a touch longer than I've encountered from other versions, but it's no bother b/c the leg grippers are ace. (Please take your time sliding into them so you don't overly stretch the tops once the gripperss start to catch on your leg.) They do not move, or I just don't produce enough power to move them. The compression is amazing as well and once I'm warmed up, I don't think about them until it's time to squirm out. The chamois feels firmer than other vesions, but could it be like upgrading your BB and now everything underneath feels like it could never go wrong...??? Down there as well, they have separated the inner fabric of the short from the chamois pad. Castelli suggests this is to mitigate friction and chafing. Regretfully, I cannot comment on if this does work as stated as I have had ZERO undercarriage friction problems with this brand. At the waist, they seem to come higher than others, giving a nice sense of security in that area. Also, less chance of that front gap if the jersey shifts. The straps feel a touch snug while standing straight up, but melt away once your in the saddle and on the hoods, etc.. The word synchronisity comes to mind at this point as your body and the garment find the perfect snuggle position and stay there until the job is done. I have purchased both the Team and "not-Team" versions. One of them seems to have more pronounced aero dimples on the leg panel.The dimples add to that fast feeling, for sure! The Team version has words across the back side. There is the little pocket that is for the pro radio 'doo-dah' that I have yet to find a use for. No comment on that. If you are already familiar with the brand, then I would highly recomment these if you are ready for an upgrade or a nice treat for yourself. If you are new to the Castelli brand and are accustomed to top tier apparel, I don't think you will be disappointed. Please be patient with figuring out your size... Be safe out there!!!

>Rating: 3

Good shorts, funky bib straps.

Familiarity:
I've used it several times
Fit:
Runs small
Size Bought
XXL
Height
6` 1"
Weight
190 lbs

Sizing: Ihave not purchased Castelli bibs in nearly a decade, but remembered my last pair of high-end Castellis (likely an earlier version of these Free Aeros) ran so small in XL that I had a hard time getting my legs in them, so I went with XXL in these, just to be sure. The XXL size fits well, with good length and compression (not too tight, not too loose) in the shorts, but the bib strap length and width seem too small (discussed further below). For comparison, I wear an XL in Giordana bibs, which fit perfectly. First, the good. The chamois is nice and compact, and quite comfortable. With other makers' chamois getting both bigger and thicker, Castelli's comparatively low-profile chamois is a step in the right direction. I haven't had issues with chafing or rubbing, so far. I think the chamois could use a bit more front coverage, but it is not an issue when riding. The silicone leg grippers are very grippy and do not slide at all; the grippers did make the shorts tricky to put on, until I started flipping them over when putting on the shorts, then folding them back over once the rest of the shorts are in place. The lycra materials (I got black) seem to be high quality and durable so far (after about a half dozen rides and machine washes). No issues with pilling yet. The not so good: the bib straps are weird. The material is very thin and flimsy, so it rolls over and bunches up, though the material is soft enough that it is not a real issue on the bike. Also, despite the bottom half of the bibs fitting just about perfectly, the straps seem a bit short and the back panel is very narrow, making them feel a little unstable. I much prefer the straps on the Giordana FRC bibs, which never bunch or irritate. Also, the back of the chamois (where the underlying foam pad is exposed) seems to be a potential wear point. In conclusion, these bibs are good, but not great. With modification to the bib straps, they could be very good, maybe even great, provided the chamois hold up.

>Rating: 2

If it ain't broke, don't fix it

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size
Size Bought
Med
Height
5` 6"
Weight
150 lbs

I've been a Castelli guy for years. Always a great fit for me with excellent chamois. However, the new chamois that Castelli introduced ( for this bib) is a real disappointment. The Progetto chamois was so plush and comfy, so why ruin a good thing. I agree with one of the other reviews here that the chamois is so abrasive, where the crotch meets the leg, that I found myself pulling in the legs of these bibs just to relieve the irritation. The rest of the fit is fine, just right on, but I don't think I can put up with the painful result of the chamois rubbing myself raw for 40 miles. Gonna just hang in the closet I guess. Tough way to lose $200.

>Rating: 4

Nice bib short

Familiarity:
I've used it several times
Fit:
Runs small
Size Bought
3XL
Height
6` 3"
Weight
205 lbs

This is a quality piece if you can manage to get the correct size. To say they "run small" is the understatement of the year. I'd give them 5 stars if the manhood area had a little more material for extra room. Other than that, I really like them. The majority of my fat is in butt and legs. Typically wear XL but went with 3XL in this bib and they fit very tightly. Not uncomfortable. They feel nice and the pad is great.

>Rating: 3

Maybe better for smaller riders

Familiarity:
I've put it through the wringer
Fit:
Runs small
Size Bought
XL
Height
6` 2"
Weight
180 lbs

There is a lot to like here and also some things I could see being improved. The likes: - chamois: my unscientific analysis is that it is super comfortable beyond most other bibs in the $200 and below range, in fact I think these are the most comfortable bibs I have ever owned. - ventilation:. Super light feel, very airy and breathable - style: the gray pair I got work well with many of my Castelli jerseys that have gray tones. They look and feel great! Not so good: - durability: the leg gripper blew out after a few months (they get used 1/wk in my rotation) - bib straps are mixed...kinda bunch up sometime under the neck early on but seemingly settle in and disappear into the ride. They are flimsy, like the material overall. Overall verdict: great bibs if you are looking for a warm weather option that will stay dry and comfy for all day epics, but you don't expect a lot of longevity and are ok getting limited seasons (1 if you ride a ton) out of them.

>Rating: 5

Comfortable and Conforming

Familiarity:
I've used it several times
Fit:
Runs small
Size Bought
XL
Weight
177 lbs

So far, about 10 rides in on each pair and they have been really good. No issues with pilling. The chamois is very effective, and I rarely have an issue with it unless I just need to make an anatomical adjustment. I have not studied the construction closely but it feels like it has been stitched together with more panels to conform around you, rather than just stretchy material to stretch around you. Make sure to size up at least one size. Like all Castelli bibs they do feel like they are optimized for skinnier riders than me,. For example, they stretch less in the waist area than my Assos shorts.

>Rating: 4

Fits Small - Outstanding Bib!

Familiarity:
I've used it several times
Fit:
Runs small
Size Bought
XL
Height
6` 1"
Weight
180 lbs

This bib short is extremely well made. The material is very high quality. The chamois is easily the best I have ever experienced BY FAR. It will easily get you through any long rides without any issues. The leg grippers are also a very nice feature and definitely perform their function well. Just be aware that this bub runs very small. Luckily, I did my research and determined that I needed to go up a size. I typically wear a Large with other brands, so I went with XL for these and they fit very well. Minor complaint - the shoulder straps are very thin and not the most comfortable as other competitors. They do not necessarily cause significant discomfort, they are just very thin and coarse only to the point of being mildly annoying sometimes. I expect better for such a prestigious brand/price. Regardless of the straps, I would still highly recommend!

>Rating: 5

Tight Fit (as intended)

Familiarity:
I've used it several times
Fit:
Runs small
Size Bought
L
Height
6` 1"
Weight
165 lbs

I like these shorts so much I recently purchased my 2nd pair. I've been riding for decades and prefer a "race fit"; that is tight, with no spare fabric around. I'm 6' 1" 165lbs and find the size Large to work well for me. My waist is 32" and hips are 35". The length is just right for me too, the bottom of the legs sit about 4" above the top of my kneecap. I will say the top straps are a bit tight but do "give" a bit after a washing or two. I never notice them when riding. The chamois is one of the most comfortable I've ever experienced, no bunching and the padding keeps me comfortable for multiple hours in the saddle.

>Rating: 1

disappointing

Familiarity:
I've used it several times
Fit:
Runs small

I rarely write product reviews. Castelli historically makes some of my favorite bibs and I am aware they typically run small. These run small relative to Castelli 'run small'. In addition the shoulder straps are terrible. They are short for their size and bunch up / become uncomfortable. Castelli products are great... except this one. I'd pick another bib for your drawer.

thanks for the review

>Rating: 2

I really want to love them

Familiarity:
I've used it several times
Fit:
Runs small
Size Bought
XL
Height
5` 11"

It is painful to write this review, especially considering the money I've spent on the bibs, and that I have plenty of other Castelli gear that I absolutely love (bibs, shorts and jerseys). I bought two pair and LOVE the chamois, the cut and fit. I have large legs, so the silicone grippers at the bottom work perfectly for me. Yes, they do take some jostling around to get into place, but once in position the bibs are rock solid (in a good way) and will not require adjustment even on a longer ride. The compression is just right for me, and the straps are comfortable. They do not lay as flat as some others, but despite a little bunching up I've never experienced any discomfort. What absolutely baffles me about these bibs, though, is how fragile they are! I purchased two pair of the bibs in the beginning of May (May 02, 2020 to be exact) and although I tried them on immediately to ensure proper fit I did't get my first rides in until the end of May. I've worn each pair once per week in 8 consecutive weeks, and each pair has approximately 250 miles of use. Extremely low usage in total...but both pairs are starting to show visible signs of wear and pilling where they make contact with the saddle! Not only is the fabric starting to pill, the threads at the seam are also coming loose. It is worth noting that my saddle is brand new, and does not have any rough spots or scuffs that would cause abrasion. I have a half dozen other pair of bibs and shorts, all of which have in excess of 1,000 miles on them and none have any pilling or visible wear on the exterior. I absolutely love the cut, fit and chamois, but it is absolutely crazy that these are my most expensive bibs and they are already showing signs of wear and damage in less than 10 uses! For the money I would expect these to last several seasons. I bought these as something of a treat to myself to have better gear as I'm getting faster and riding further because some of my other chamois just don't hold up...now I'm completely gun-shy on what to do next for fear that I'm just burning money.

It

I have the exact same problem, but from only a week of usage and 250 miles

Crap, I had the exact same thing happen to both of my Assos (T.cento_s7) bib shorts. Bought the second one thinking the first was a fluke. Short riding distance on both (approx 300 miles) with usage similar to yours; and shortly thereafter wore a hole through at that pilling point. Shopping for Castelli's to replace them. I guess not!!

check the screw that holds the saddle rail. propably have to change your seat post and have the saddle screws front and back. if your saddle screw is one the side it will torn your bib. i had that 4 bibs in total. lost around 700 on bibs, when i found out.