Sorry, this product is no longer available!
Castelli Free Aero Race Cycling Bibshorts Team Version - SS18 is no longer available at Merlin Cycles. However you may find an alternative or updated product below.

This item was discontinued 4th July 2019.

If you require help finding an alternative to this product please contact customer services.

Code: CS1500515
Castelli Free Aero Race Cycling Bibshorts Team Version - SS18
The Free Aero Race short has been engineered as our premier race short. Our first Free Aero Race debuted in 2007 and has undergone continuous improvement as we develop new fabrics and construction methods and respond to feedback from our professional teams. We designed the Free Aero Race to be fast by concentrating on helping you get the most out of your body and by optimizing aerodynamics. The other main goal in this short is comfort, because the pros will be riding 30,000 km per year, and a four-hour ride isn’t even considered long. While the Free Aero Race short has been engineered for top-level racing, all its features make it an ideal short for whatever your cycling challenge.
  • Vortex dimpled fabric on legs for aero performance
  • Forza fabric on inner legs with 38% Lycra® content for perfect fit
  • Carré engineered lie-flat bib strap construction for minimal coverage, maximum comfort
  • Giro Air mesh-like leg gripper elastic for better grip distributed over larger area
  • Doppio V construction in front for increased support and comfort
  • Flat-lock stitching
  • Reflective detailing on back
  • Progetto X2 Air seat pad for even greater comfort
  • Weight:178g


Mr O'Sullivan Awesome fitting shorts, cannot wait to wear them when the weather improves, could not leave them at that price
Tommy These are great bib shorts from Castelli. Very comfortable pad and a firm race fit. On longer rides these are one of my go to shorts. I`m 6ft and 73kg and a large is snug on me.
Michael The best shorts Castelli makes. Worth the extra money
Mr Preston Bought from the US. Shipping took less than two weeks and left their facility quick! Shorts were a great price and fit fantastically. I'm 6'3" and I ordered a Medium.
Mr Piper Best bib short in my opinion. 6'0" 205 lbs and XXL is perfect.
Mr Heywood Buying online is always risky, however I took the punt on these and have been impressed. I went up one size from normal and find they are a snug fit but not so snug to be uncomfortable. Overall quality appears to be great. Happily recommend this product.
Mr Stannard Have ridden a few 3 to 4 hours rides now in both cold & warm conditions, both comfort and fit are very good & so they should be at the price. What ever size you are go up one size with Castelli shorts !!
Jon K 3rd pair of these shorts. Great fit and pad is very comfortable whether you`re on TT or road bike. I`ve always bought when on offer to get best value. Merlin service is top quality as ever.
Recep AKSOY Castelli does a pretty good job in cycling. Good quality with Castelli quality and reasonable prices from Merlin Cycles. A standard "s" body. I'm a 65kg 170cm tall man. I ordered a "S" size. Good quality fabric. I used the tights of several brands, but these tights are better than all of them. They were cheaper tights. Castelli Free Aero Race Cycling Bibshorts is one step ahead in terms of price performance. I did a two-hour drive for the test, but it was no different from sitting in the home seat. Merlin Cycles to send thank them for 5 days in Turkey. If you order your products from entering the country after Turkey sent with PTT. Your products are delivered late due to PTT density. You can take PTT KDTM yourself to be fast.
Mr Langridge Cracking kit. I have a few pairs of Castelli bib tights and when i saw these shorts at a knock down price I couldn't resist. I have used them on a few commutes as well as fun rides and they perform excellently. The fit and feel is second to none and I have no hesitation in recommending these to everyone. If I have one slight niggle it is with the deeper hem on the shorts, I'm still not convinced by the look of these but can't fault the comfort.
Martin Love these Castelli Bibs. Second pair. Great service and delivery to The States from Merlin. Looking forward to buying in the future!
Mr O'Neill Good value when they come on special, and comfortable padding - at least for my rear end. BUT, the sizing is way small, so recommend at least one (perhaps 2) sizes up. I usually wear size M but have a selection of L and XL of these nicks. Same pad (Progetto X2) as the longer legged versions (3/4 and Omloop) if you need/like the longer legs.
Mr Martinez III Fits as most Castelli products do, which is about 1 full size smaller. Make sure to order up one size in Castelli. Excellent bib shorts so far!!!
Jay I agree with those that suggest you want to size up with Castelli. I am 6'1" and 155 lbs and I wear a Medium in most other brands but with Castelli, I generally need to buy a Large (as I did here). I like a compressive fit in my bibs and these are just about perfect in that regard. I very much like the leg grippers and the way the legs fit in these shorts. Once you are in a riding position, everything looks and feels as it should. Overall, these are very nice bibs and I feel that I got a fantastic deal from Merlin. Finding a pair of shorts of this quality for price I did is not common and if they have your size and a color you actually like, it must be your lucky day. With all that going for me, I'm very happy to have these shorts in the rotation and thankful to Merlin for the easy transaction and service. With that said, I don't agree with anyone who thinks these rival a pair of Assos bibs. The big differences are the way these Castellis squash all your bits and pieces, as well as the comfort of the pad. While this pad feels good under the sit bones and stays in place as it should, it doesn't ventilate or manage moisture terribly well. These are my only non-positive observations about these Castelli bibs and they don't erase the fact that I got a very good deal on a very nice pair of cycling shorts.
Mr Sierra Garcia For me, the best bibshort in the world by far. Unfortunately, the Free Aero model will change to other "evolution" design in 2019 that I think is not as good as this, just because it will lose the best the best features, such as finishing in the form of a "silicone network" in the leg and the laser cut in the suspenders...
Anthony I'm 6'0" and 145 lbs. Ordered a size small and it is tight, but it should be tight. The chamois is great. Happy customer.
Mr García Rodríguez En cuanto al proveedor, ningún problema, todo perfecto. En cuanto al producto, he de decir que talla bastante pequeño, más de lo que me esperaba, aún sabiendo que es un producto Castelli. Siendo de buena calidad, creo que pagar 88,92 ¬ es más que suficiente, jamás lo compraría si no estuviera de oferta.
Mr saldise korta Culote de muy buen calidad y gama alta a buen precio. Envío y comunicación correctos.
Mr Bernat Para mí el Free Aero es el mejor culote que hay en el mercado. Quizás la talla ha cambiado un poco respecto a versiones anteriores.
Kev946 Top quality shorts. Not yet ridden any distance but told the pad is superb. The straps seem a little short but stretch enough. I'm 5' 11" and decided to stick with the large for a race fit but some will prefer a looser fit than me. I tried the medium and couldn't get them over my thighs.
Shane Excellent shorts for long hours in the saddle. Best prices at always!
Shane These shorts are the best fitting, feeling shorts I have tried in a long time. Especially in our recent mid 30's weather! I have quite a few different brands but these are truly 6 hour shorts. Great price from Merlin so I ordered more!
Mr Berkson Fantastic shorts. While they're long (hitting right behind the knee), and could use a smidge more compression, the comfort is unparalleled. The chamois is perfectly supportive and offered no problems on a multi-hour ride in the heat - without chamois cream.
Josh Great pair of shorts these. Second pair I've bought, went straight back for them just to have a spare pair. My old ones are still going strong 2 years down the line.