Astra 105 Di2 Aksium Black Opal — product image 1 at Stretton Bikes

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Why you'll love it

Basso engineering with a focus on ride quality and reliability.

Supplied with professional setup and safety checks from Stretton Bikes.

Expert sizing advice and after-sales workshop support in Ashby-de-la-Zouch.

Who it's for

Ideal for 1

Road riding

Ideal for 2

Sportives and club rides

Ideal for 3

Fast rolling lanes and long distances

Key technology & features

Suspension

Hardtail

Basso Astra 105 Di2 Aksium Black Opal — riding on UK trails and lanes

Built to ride

Basso Road performance

Premium bikes, expert setup, and Midlands riding from Stretton Bikes in Ashby-de-la-Zouch.

Specifications

Sizes
XXS (45), XS (48), S (51), M (53), L (56), XL (58) XXL (61)
Frame Weight
980g

Frame sizing for Astra 105 Di2 Aksium Black Opal

Basso do not publish official rider-height size recommendations for the Astra 105 Di2 Aksium Black Opal. Contact Stretton Bikes in Ashby-de-la-Zouch for personalised sizing advice based on height, inseam, flexibility and riding style.

Sizing

Need help choosing your size?

Available sizes: XXS, XS, S, M, L, XL, XXLColours: Opal

Need help choosing your size?

Basso do not publish official rider-height size recommendations. Choosing the correct frame depends on your height, inseam, flexibility, riding style and fit preference.

Our team will happily recommend the correct size before you order.

Contact Stretton Bikes
View Full Geometry+

Reach, stack, seat tube, head angle, chainstay, wheelbase, BB drop, standover, effective top tube, and seat angle measurements.

Geometry details available on request.

Delivery & collection

Collection

Collect free from our Ashby-de-la-Zouch showroom. Bikes are fully inspected and safety-checked before handover.

Delivery

  • Free delivery on bikes over £1,000.
  • Bikes under £1,000: £60 delivery.
  • Delivery available to England and Wales only.

Why buy from Stretton Bikes

Authorised dealer for Mondraker, Basso and Marin
Showroom and workshop in Ashby-de-la-Zouch, serving the Midlands
Professional bike fitting and independent advice
Cycle to Work and finance enquiries handled personally
Every bike safety-checked before handover

Related bikes

FAQs

This bike is available to order. Lead times vary by brand and size — we will confirm when you enquire.

Product details

About the Astra 105 Di2 Aksium Black Opal

Can a bike designed for the road still perform on dirt? 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. 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 105 Di2 12x Chainset: Shimano 105 Di2 12x Disc Brakes: Shimano 105 Di2 12x Hydro Disc Rotors: Shimano 105 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 Aksium Centre Lock Disc UST Tyres: Schwalbe Lugano II K-Guard 700x28c Please Note: Bikes built in-house are supplied with 30mm of headset spacers. For any additional requirements please state in the notes box at the point of checkout. Spec may be subject to change due to availability

  • Can a bike designed for the road still perform on dirt? Some road bikes are capable of being adapted; the Astra was created to be whatever you need it to be.