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1858674 / 54294283288922

Product Details

Assos Mille GTS Bib Shorts S11

The Assos Assos Mille GTS Bib Shorts S11 are a short designed to excel as ride times stretch across multiple hours. They give you a balance of aerodynamics, compression and comfort, keeping muscles supple and supported as the kilometres tick ever upwards.

The S11's standout upgrade is the rollBar suspension system, adapted from Assos’ Racing Series S9, enhancing vertical stability and easing waist restriction for better support and flexibility, especially in aggressive riding positions. The butterfly-wrap panelling returns to provide fatigue-reducing compression that balances comfort and aerodynamics. The shorts are made from Volkano, a proprietary fabric with UPF 50+, odour resistance, via Mineral Tec incorporated into the yarns, and abrasion protection. The rich, matte finish of the materials gives a classy finish. The fit sits neatly between pure endurance fit and a second-skin racingFit, perfect for rides that vary in pace and for tackling longer distances where watts saved are energy for later.

GTS S11 Seat Pad

Engineered for long-ride comfort and featuring enhanced airflow, the GTS S11 Seat Pad has a dual-layer 13mm foam construction to give unrivalled shock-absorbing and supportive comfort. 3D waffle foam reduces bulk and improves breathability while the kukuPenthouse panel allows cooling airflow where you need it most.

Free-floating goldenGate 2.0 allows the seat insert to move with your body while new cut-outs on the wings reduce friction throughout your pedal stroke. Combining kraterCool and whirlKrater perforations ensures class-leading airflow and ventilation, maintaining comfort as you push hard on the pedals. 

Features
  • Patented rollbar bracing design adapted from the Assos Racing Series. Stabilises the insert and locks it in place as your weight transfers while sprinting, climbing, and cornering
  • PILtec Plug-In - a lightweight, ultra-breathable textile band across the leg opening with microdot silicone treatment, invisible from the outside, securing shorts in place
  • Soft, highly elastic zeroPressure waist construction that improves comfort and hold, minus any pressure or pinching
  • GTS S11 Seat pad - dual-layer, 13mm construction of fast-drying, high-density foam materials in an endurance cycling platform. One layer absorbs shocks, the other damps micro-vibrations
  • 3D Waffle: A patented, three-layer, perforated foam that increases breathability and eliminates excess weight
  • goldenGate 2.0: A free-floating construction that moves with your body rather than against it. New cut-outs on the wings reduce friction throughout the pedal stroke
  • kraterCool perforations in the inserts’ leading edge draw cooling air to maintain breathability and a dry, cool microclimate
  • whirlKrater perforations strategically distributed throughout the insert, creating a whirlwind of cooling airflow instead of just a unidirectional breeze
  • kukuPenthouse - ultrasoft panel in front of the insert that allows direct air cooling and eliminates pressure, allowing a more aggressive fit across the entire garment
  • Standard leg length
Specifications
Composition
80% Polyamide, 20% Elastane
Bib Strap Construction
Minimal
Cargo Storage
No
Chamois Type
Endurance
Cycling Discipline
Road
Fit Type (General)
Compression
Gender
Men's
Leg Length Style
Short
Material / Main Fabric
Polyester
Primary Activity
Cycling
Ride Duration Focus
Long Distance
Weather Protection Level
None
Leg Gripper Type
Silicone
Waist Style
Bib
Product code
1858674 / 54294283288922
Size Guide
XS (0)S (0)M (I)L (I)XL (II)XXL (II)
Arm Length (cm)41 - 4243 - 44454647 - 48>48

Assos apparel is cut anatomically without restricting movement in the riding position.

Reviews
Rating 4 out of 5
4
Value of Product
3
Quality of Product
3.5
Fit
Comes Up SmallComes Up Large
Rating 2 out of 5
Tom366,
Verified purchaser

Having worn Addis Mille shorts for overtime twenty years I’m disappointed at the latest version. These are less comfortable than the well used previous version they replaced. Now looking at alternatives.

Rating 2 out of 5
Jonberry,
Verified purchaser

What have they done… the previous GTS C2 model were perfection (personal opinion of course) this new version is terrible in comparison. The S11 pad is really uncomfortable compared to the previous and the quality of stitching was not as good. Loose threads everywhere. A real disappointment form brand I’ve used for years and trusted.

Care
Composition: 80% Polyamide, 20% Elastane
Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

Q & A

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About Assos

Swiss precision. Half a century of obsession.

Assos of Switzerland was founded in 1976 by Toni Maier-Moussa with a single ambition: reinvent cycling apparel from the inside out. The Lycra cycling short, modern bibs, the chamois as we know it — all began here. Half a century later, the obsession with precision and ride feel hasn't moved an inch.

Assos still designs and engineers every piece in Switzerland. The brand operates its own laboratory, its own development pool of test riders, and its own assembly line for the most demanding garments in the range.