Sorry, this product is no longer available!
Castelli Endurance X2 Cycling Bib Shorts - SS18 is no longer available at Merlin Cycles. However you may find an alternative or updated product below.

This item was discontinued 14th February 2019.

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

Code: CS14005
Castelli Endurance X2 Cycling Bib Shorts - SS18


The Castelli Endurance 2 bib short is designed for long rides in the saddle & features Castelli’s famous Progetto X2 Air seat pad which delivers superior rider comfort as the miles roll by. Endurance Evolution fabric has been used for enhanced muscle support and their 8-panel construction provides an unrivaled anatomic fit; with a newly engineered bib strap construction the Endurance 2 bib shorts fit your upper body comfortably without creating unwanted pressure points. 


The Progetto X2 Air seat pad utilises ventilating perforations to keep you cooler and dryer on long endurance road rides, this design allows air and moisture to flow directly to the surface fabric for quick evaporation. Constructed from 3 separate components each layer of the seat pad is dedicated to a specific purpose to create Castelli’s most comfortable seat pad to date.



  • Endurance Evolution fabric provides optimum muscle support
  • Newly engineered bib strap construction is comfortable on a wide range of body shapes
  • Giro3 leg grippers
  • Progetto X2 Air seat pad
  • Rear reflective tabs
  • Heat transfer logos
  • Weight: 188g 
Absolutely fantastic, the best bibs I have had the pleasure of using in years. Being in the heavy weight division (190cm/96kg) I need comfortable bibs for those 100km+rides, and these fit the bill perfectly. Being Castelli they are on the small side, 3xl were tight to begin with but after a couple of 4hr rides, perfect. Would not hesitate to buy another pair when required
These are some of the best bibs I've had in years. Up there with Assos and Rapha and super sharp pricing.
Great pair of nicks. Really comfortable. They are on the tight side of their sizing, but that makes them feel a bit more supportive. I'm very particular about chamois style and the Progetto-X2 is good. I've not done a 100+km ride in them yet, but I've got confidence in them to get the job done.
Awesome. They are will made and great padding. Nice compression on the thighs.
Timely delivery of the item! The shorts are very comfortable - yesterday did 125 km in them, although the size is on the smaller side - one should order a size larger.
Nice shorts for racing that provide compression for my thighs. Very supportive and comfotable.
I brought these for longer days in the saddle, tested them out on a 90mile ride and I'm pleased to report that they are very comfortable. The padding is very good and supportive. I have other castelli shorts, so I knew to order a size up from other brands.
Price was excellent. Shipping was quick. At 5"10 bought large which is nice and tight without being restrictive. Excellent bibs for 118$.
The comfiest bib shorts I own. Only used once so far for about 35 mile ride and felt great the whole way round. But do buy a size up, they are designed for whippet like pros!
Have used Castelli bib shorts for several years, mostly because of their very good quality and the comfort of the chamois. Decided to try the Endurance shorts because of the very attractive sale price, and they are up to the usual high standard. I'm 167 cm and 55 kg, and the medium fits fine. Also impressed by Merlin's fast delivery to Canada.
Very comfy bibs. Haven't worn them on long rides yet, but fit and muscles support is good on shorter rides (around 50 miles)
Great fit, this is my second pair and you can't beat them for value. Very comfortable for those long rides. These are my favourite Castelli Bib Shorts.