Assos MILLE GTO Bib Shorts S11 Regular
Expected to ship within 3 days
Delivered fully assembled and tuned by Bike Mart—ready to ride right at your doorstep within 10 miles of any DFW location.
What is the Bike Mart Return policy?
What is the Bike Mart Return policy?
Bike Mart offers a 14-day return and 30-day exchange policy in effect on qualifying items. Restocking fee may apply for "At Warehouse" Items. Read More
What Financing options does Bike Mart offer?
What Financing options does Bike Mart offer?
Financing is easier than ever at Bike Mart. With Synchrony Financial, you can choose:
- 0% APR for 6 months — on orders under $999
- 0% APR for 12 months — on orders of $1,000 or more
We also support HSA/FSA Funds with TrueMed, Shop Pay Installments and PayPal Financing.
Ship
Get your bike or equipment delivered to your home directly from Bike Mart via our FedEx or USPS Carrier partners. Adult signature is required for all bike deliveries and for equipment & gear deliveries over $500.
For orders that include a bike, it will be professionally pre-built and shipped to your home with minimal assembly needed. While we try to make it as easy as possible, basic mechanical skills and proper tools are required.
If you decide to take your bike to a local bike shop for assembly, additional fees will apply.
Pickup
We’ve made it easier than ever to get the gear and bikes you love—fast. With our Buy Online, Pick Up In Store (BOPIS) option, you can shop online and pick up your items at your convenience from any of our six DFW locations.
The best part about picking up at a Bike Mart location is that you get the same high quality service with the convenience of having the exact bike or part.
Bikes / Car Racks will be assembled and installed at no extra charge and might require additional processing time for assembly.
Delivery
When you select "Home Delivery" at checkout. Your bike will be professionally assembled and the closest Bike Mart store will call you to schedule the delivery.
We offer home delivery for bike purchases only within 10 miles of a Bike Mart location. Contact us if you live beyond 10 miles and we can discuss more options. Additional fees may apply.
In stock bikes will be delivered within 7 days. Warehouse bikes will delivered within 14 days*.
Overview
Overview
The Assos MILLE GTO Bib Shorts S11 represent the pinnacle of endurance bib short engineering, synonymous with luxury comfort in the saddle and refined through continuous innovation to elevate long-distance performance. This latest S11 generation enhances comfort from top to bottom, beginning with lightweight bib strap construction that improves breathability at the shoulders and extending to leg openings where traditional silicone grippers are replaced with low-volume, open-structured INject grip rings that maintain secure hold while improving airflow and reducing friction.
The proven OSSIDIA textile wraps large muscle groups in silky-smooth, fatigue-reducing compression through warp-knit construction incorporating ultrathin elastic yarns. This body-mapping elasticity delivers gentle, supportive compression that reduces muscle fatigue across extended riding hours without creating the restrictive pressure that compromises circulation or comfort. The frictionless fabric finish glides smoothly against skin and chamois, eliminating the irritation points that develop during long distances.
Strategic construction innovations enhance the GTO's comfort-focused design. The cranKio Tec hip darting removes excess material to prevent bunching during the pedal stroke, eliminating fabric interference with natural leg movement. An ultra-elastic, highly breathable LOSANGA front panel works in harmony with kukuPenthouse insert construction to drastically increase cooling airflow through the insert, addressing the heat buildup common during intense efforts or warm conditions. The zeroPressure waist features soft, highly elastic construction that provides secure comfort without the pinching or pressure marks traditional waistbands create.
At the core sits the GTO S11 Insert—widely regarded as one of the most comfortable endurance chamois available. The Shock-Absorb Damping System Twin features 21mm dual-layer construction with targeted support precisely positioned beneath sit bones for maximum long-distance comfort. The goldenGate 2.0 floating insert attachment allows the chamois to move with the body, reducing friction and eliminating pressure points as riders shift positions between climbing, descending, and flat terrain. kraterCooler ventilation at the perforated leading edge creates active cooling airflow, while whirlKrater ventilation features strategically placed perforations generating multidirectional cooling to prevent moisture accumulation.
The patented rollBar stabilization system, adapted from Assos's Racing Series, braces and locks the insert securely in place as weight transfers during sprinting, climbing, and cornering. This stabilizing bib strap construction prevents the chamois migration that creates discomfort and compromises performance during dynamic efforts. INject leg grippers feature silicone-infused raw-cut openings that provide secure hold with reduced friction and improved durability compared to traditional gripper bands.
Engineered with regularFit construction for total comfort on the longest endurance rides, the MILLE GTO S11 represents Assos's uncompromising commitment to riders who demand luxury performance across extended distances. Available in standard and long (+3cm) leg lengths.
Key Features
- OSSIDIA Fabric – Warp-knit textile with ultrathin elastic yarns delivers fatigue-reducing compression and frictionless comfort
- GTO S11 Insert – Premium endurance chamois with 21mm Shock-Absorb Damping, goldenGate 2.0 floating attachment, and multidirectional ventilation
- rollBar Stabilization System – Patented bib strap design locks insert in place during dynamic movement with cranKio Tec hip shaping
Why Shop at Bike Mart?
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Live Chat with Real People
Get instant advice and answers from our team of cycling experts through our online chat feature or over the phone.
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Community-Focused
We have donated over a million dollars to support our communities through charity rides, bike rallies and advocacy for more bikeable trails in Texas.
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Professional, Quality Assembly
Our bikes are expertly assembled and inspected by Bike Mart’s professionally trained staff. They ensure proper adjustments, tighten and true wheels, and get your bike ready to ride.
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Our Legacy of Excellence
With 62 years of retail experience, Bike Mart brings unparalleled expertise and dedication to serving you.
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10% off accessories with new bike purchase
Receive 10% off all accessories purchased with a new bike.
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Hassle-Free Returns
Easily initiate returns for online orders with our straightforward return policy to shop with confidence.
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Locally Owned & Operated
A family of cyclists who live and ride in your community—feel right at home.
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Free accessory installation with new bike purchase
Let our experts install your accessories at no extra cost, ensuring everything fits perfectly and is ready for your ride!




