Castelli Unltd Endurance Bibshort testWhat can the cargo bib do?

Stefan Frey

 · 07.07.2025

With the new Unltd Endurance, Castelli wants to appeal above all to bikers who want extra storage space on long tours
Photo: Georg Grieshaber

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The Castelli Unltd Endurance Bibshort is perfect for gravel bikers who need extra storage space for snacks and small items. Our test reveals whether the lightweight cycling shorts from Castelli are comfortable even on long rides.

Topics in this article

Castelli can look back on a long heritage in cycling, tailoring the first cycling clothing for five-time Giro champion Alfredo Binda as early as 1910. In 2009, the revolutionary Body Paint trousers were launched on the market, which were made from a single piece of fabric and are believed to be the template for many of today's top cycling trousers.

Cargo cycling shorts and few seams

The new Unlimited Endurance Bibs, but it also dispenses with unnecessary seams as far as possible. The straps are seamless and the leg hems run all the way to the hem without cross seams. All other seams are kept as flat as possible. Castelli uses small silicone strips at the leg ends for a slightly better grip. A mesh bar on the back of the bibs is intended to improve the fit and at the same time allow sufficient ventilation. A total of three mesh pockets on the legs and back can be used to store material and food on long rides.

The Castelli has pockets on both the sides and the back. However, modern smartphones are a little too heavy to carry on the thighPhoto: Georg GrieshaberThe Castelli has pockets on both the sides and the back. However, modern smartphones are a little too heavy to carry on the thigh

The carriers

The new Unlimited Endurance Bibs are also genuine Castelli bibs and have a correspondingly tight cut. If you don't like it too tight, you should choose a size larger, as the thin straps in particular sit tightly on the shoulders. When putting them on, they therefore need to be aligned particularly carefully, especially as they roll up a lot - which is annoying. The rest of the trousers, on the other hand, are comfortable and scratch-free to wear. The leg cuffs are held in place by the silicone prints and don't ride up when pedalling. However, a total of three seam knots come together at the cuffs, which can pinch a little in the long run. Other manufacturers such as Gobik solve this problem more skilfully.



The straps of the Castelli are quite tight and roll in a lot. A slightly wider design would have been better herePhoto: Georg GrieshaberThe straps of the Castelli are quite tight and roll in a lot. A slightly wider design would have been better here
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Actually a great leg cuff that doesn't add too much bulk. It just sits a little tight and the small darts can pinch in the long runPhoto: Georg GrieshaberActually a great leg cuff that doesn't add too much bulk. It just sits a little tight and the small darts can pinch in the long run

Upholstery

Castelli has developed its own padding, which is quite thick and comfortable overall, but is more suitable for bikers with a narrow sit bone distance. Because the padding decreases significantly towards the outside, the area with maximum support is quite narrow. This means that you are not always optimally supported in the saddle. We would have preferred an evenly thicker shape throughout.

The Castelli padding is particularly thick and fluffy - not everyone's cup of tea. It slopes sharply to the side and is more suited to narrow sit bonesPhoto: Georg GrieshaberThe Castelli padding is particularly thick and fluffy - not everyone's cup of tea. It slopes sharply to the side and is more suited to narrow sit bones

Castelli Unltd Endurance Bibs - Info and price

Lightweight, well equipped but not ultimately comfortable. The straps and leg cuffs in particular are not idealPhoto: Georg GrieshaberLightweight, well equipped but not ultimately comfortable. The straps and leg cuffs in particular are not ideal
  • Price169,95 Euro >> available here
  • Weight (L): 178 gram
  • SizesXS-3XL
  • Made inItaly
  • Equipmentseamless mesh straps; mesh back; seamless cuffs; reflective; 3 pockets
  • Special features3 pockets on OS and back
  • Upholstery length/width/hardness: 24 cm / 11 cm / medium
  • Leg length (measured from the trochanter major): 33 cm

Evaluation & conclusion

Good equipment but narrow seat cushion - at least at the position with the greatest supportPhoto: Stefan FreyGood equipment but narrow seat cushion - at least at the position with the greatest support

Very light, tight but also somewhat thin material with many seam knots on the trouser leg. The silicone prints pinch at the leg ends after prolonged wear, the thin straps roll in a lot and can pinch over time. The padding itself is comfortable and offers good support, but it is very graduated and therefore offers little usable width. The Castelli is particularly well equipped with three pockets.

Stefan Frey is from Lower Bavaria and loves the mossy, loamy trails of the Bavarian Forest as much as the rugged rock of the Dolomites. For technical descents, he is prepared to tackle almost any ascent - under his own steam. As an accessories specialist, he is the first port of call for questions about equipment and add-on parts, while as head of copywriting he sweeps the language crumbs from the pages of the BIKE print editions.

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