Collection
Collect free from our Ashby-de-la-Zouch showroom. Bikes are fully inspected and safety-checked before handover.
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Overview
About this bike
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.
- 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.
Specifications
- Sizes
- XXS (45), XS (48), S (51), M (53), L (56), XL (58) XXL (61)
- Frame weight
- 980g
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
Built to ride
Basso Road performance
Premium bikes, expert setup, and Midlands riding from Stretton Bikes in Ashby-de-la-Zouch.
Frame sizing for Astra 105 Di2 Cosmic S Black Opal
Basso do not publish official rider-height size recommendations for the Astra 105 Di2 Cosmic S Black Opal.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Basso do not publish official rider-height size recommendations.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.
Get in touch and we will happily recommend the correct size before you order.
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
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
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Road bike buying guide
Practical buying advice from Stretton Bikes.
All buying guides
Expert advice on mountain, road, gravel and e-bikes.
Bike shop Ashby-de-la-Zouch
Visit our Midlands showroom or enquire online.
Bike fitting
Professional fit consultations in store.
Workshop services
Servicing, repairs, and Bosch e-bike support.
Finance options
Spread the cost of your new bike.