SKU: 81765848059

Basso Astra Ultegra Di2 Cosmic S Black Opal Road Bike

Sale price$2024.55 Regular price$2249.50
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

Basso Astra Ultegra Di2 Cosmic S Black Opal Road BikeCan a bike designed for the road still perform on dirt? FREE PEDALS Some road bikes are capable of being adapted; the Astra was created to be whatever you need it to be striking the perfect balance between road racing and the rough stuff, welcome to All Road. Some road bikes are capable of being adapted; the Astra was created to be whatever you need it to be striking the perfect balance between road racing and the rough stuff, welcome to All Road. The

Can a bike designed for the road still perform on dirt?

FREE PEDALS

Some road bikes are capable of being adapted; the Astra was created to be whatever you need it to be... striking the perfect balance between road racing and the rough stuff, welcome to All-Road.

Some road bikes are capable of being adapted; the Astra was created to be whatever you need it to be... striking the perfect balance between road racing and the rough stuff, welcome to All-Road.

The UCI Approved Astra maintains its vocation of road cycling but increases stability and comfort. It's light, but without pushing the carbon to its limits, preserving Basso's racing DNA but makes it transversal, for those who are not professional athletes, but who want to ride their bikes every day. The new frame features dropped seatstays, a 12mm higher stack height and 3mm shorter reach, creating a slightly more relaxed riding experience. The 35mm tyre clearance allows you to mount wider tyres and venture beyond the tarmac on to light dirt roads.

Features & Benefits

Technology

3k Toray Ca High Modulus Carbon Fibre The frame is produced entirely in-house, by skilled hands at Basso Italy, its features are designed to amplify the fun factor, for those who just want to get in the saddle, no matter what their definition of riding. Basso was among the first bike brands to research, develop and employ carbon in its frames, researching new methods and techniques to continually improve performance, reliability, and durability.

Paradigma Integration System Multiple cables running through a tight space often results in slow and heavy steering. Basso has been able to integrate internal routing whilst maintaining steering lightness and precise handling. The body of the Paradigma Stem remains cable free, so can be removed at any time without the need to disconnect the cables, making it easier to maintain your bike, transport it in a travel case or bag, or change the length of your stem.

3B Clamp System Gen 2: A totally hidden seatpost fixing solution that is invisible on the frame, intertwining technological and aesthetic innovation. This lightweight and strong integrated clamping solution offers the additional benefit of an anti-vibration function, further improving your riding experience by elevating comfort on uneven and bumpy surfaces.

Frame Specs:

  • Sizes: XXS (45), XS (48), S (51), M (53), L (56), XL (58) XXL (61)
  • Compatible with Electronic and Mechanical groupsets
  • Cable Integration: Fully Integrated
  • Brakes: Flat Mount Disc
  • Bottom Bracket: BB86 86.5 X 41
  • Stem: Basso Paradigma -8 Deg
  • Seatpost: Basso 15mm layback
  • Headset: Fully Integrated
  • Tyre Clearance: 35mm
  • Thru Axles: 100/142mm x 12mm
  • Frame Weight: 980g
  • Warranty: Covered under Basso's 2 Year warranty
  • Made in Italy

Bike Specifications:

  • Components: Shimano Ultegra Di2 12x
  • Chainset: Shimano Ultegra Di2 12x
  • Disc Brakes: Shimano Ultegra Di2 12x Hydro
  • Disc Rotors: Shimano Ultegra ICE Rotors 160/160mm
  • Cassette: Shimano 105 12x
  • Chain: KMC 12x Silver/Black
  • Saddle: San Marco Monza
  • Handlebar: Microtech All Road
  • Stem: Basso Paradigma
  • Seatpost: Basso Integral Carbon
  • Wheelset: Mavic Cosmic S Centre Lock Disc UST
  • Tyres: Schwalbe Lugano II K-Guard 700x28c
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81765848059

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Angela A Mathis
Port Orchard, US
★★★★★ 5
Good Product
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
These socks are good for moistening. Durability is awesome Fit true to size. Traction could be a little better. The sock are very comfortable
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Reviewed in the United States on April 23, 2026
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Tj
Battle Creek, US
★★★★★ 4
Slippery when wet!!!
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
“These moisturizing slippers are actually really comfortable and feel great on the feet. They’re soft, cozy, and do help moisturize while you wear them. I also think they’re a good value for the money. The only downside is that once your feet get moisturized, they can get slippery inside the slippers, so I wouldn’t recommend walking around too much in them. Better for relaxing and letting your feet soak up the moisture than for being up and moving around.”
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Reviewed in the United States on May 26, 2026
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J. Randle
Lake Worth, US
★★★★★ 5
Love them
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
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Reviewed in the United States on January 31, 2026
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Vonda Kioultzopoulos
Boise, US
★★★★★ 3
Effective but may be uncomfortable
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
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Reviewed in the United States on September 20, 2025
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Tessy
Omaha, US
★★★★★ 1
Burned my already sensitive feet, too big
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
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Reviewed in the United States on April 22, 2026

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