Description
As new condition approved used bike
Basso Astra Chorus Bike
The Basso Astra Chorus Bike is built for versatility, offering a seamless transition between smooth tarmac and light off-road terrain. Designed to strike the ideal balance between road racing performance and all-road adaptability, it is UCI approved and ready for a variety of riding conditions.
While it retains a strong road cycling character, the Astra has been refined to increase comfort and stability. The frame is lightweight without pushing carbon to its limits, preserving Basso's racing heritage in a more accessible package for everyday riders. Key geometry changes include dropped seatstays, a 12 mm higher stack and a 3 mm shorter reach, creating a slightly more relaxed and upright riding position. With 35 mm tyre clearance, the Astra can accommodate wider tyres, allowing riders to explore light gravel and dirt roads with confidence.
3K Toray CA High Modulus Carbon Fibre
Handcrafted entirely in-house by Basso in Italy, the carbon frame is built to maximise rider enjoyment. Basso has long been a pioneer in carbon frame development, continually refining materials and construction methods to enhance performance, durability and ride quality.
Paradigma Integration System
Internal cable routing is achieved without compromising steering precision. Thanks to the Paradigma Stem design, the body of the stem remains cable-free, allowing for removal or adjustments without disconnecting cables. This simplifies maintenance, travel, and customisation of fit.
3B Clamp System Gen 2
The seatpost is secured with a fully hidden clamp mechanism that blends technical functionality with aesthetic appeal. This integrated system is not only lightweight and robust, but also includes an anti-vibration feature to boost comfort across rough terrain.
The Basso Astra Chorus Bike delivers an elevated riding experience, whether on the road or heading off the beaten path.
- Certified Quality & Peace of Mind
Every bike is meticulously inspected to the highest safety standards and comes with a one-year warranty*, ensuring reliability and performance you can trust. - Premium Bikes, Lower Prices
Own a high-end bike for less – get access to top-tier brands and models at a fraction of the cost, making performance cycling more affordable. - Sustainable & Eco-Friendly Choice
Choosing a pre-owned bike helps reduce waste and extends the life of quality bicycles, making it a greener way to ride. - Hassle-Free Trade-In & Upgrade
Easily part-exchange your old bike for an upgrade, making it simple to switch, save, and keep riding the best bike for your needs
Approved Used Warranty Information
Technical Specification
| Frame | Basso Astra, 3K Toray CA High Modulus Carbon Fibre, size M, 2025 |
| Fork | Basso Astra Carbon |
| Stem | Basso Paradigma 110mm -8° |
| Handlebar | Microtech All Road 42cm |
| Levers/Shifters | Campagnolo Chorus Hydraulic, 160mm rotor |
| Front Derailleur | Campagnolo Chorus 2x12 Speed, braze-on |
| Rear Derailleur | Campagnolo Chorus 12 speed |
| Cassette | Campagnolo Chorus 12 speed 11-34T |
| Crankset | Campagnolo Chorus 2x12 speed, 52/36T, 172.5mm cranks |
| Wheels | Campagnolo Limited Edition Bora C19 Carbon |
| Tyres | Schwalbe Lugano II K-Guard 700x28c |
| Saddle | Prologo Dimension T4 |
| Seatpost | Basso Integral Carbon Seatpost, 15mm offset |
| Pedals | Available to be purchased separately |
Size Guide
Basso Astra Chorus 2025 M - Approved Used Sizing
Delivery & Returns
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Why buy a used bike from Sigma Sports?
Every bike is meticulously inspected to the highest safety standards and comes with a one-year warranty*, ensuring reliability and performance you can trust.
Own a high-end bike for less – get access to top-tier brands and models at a fraction of the cost, making performance cycling more affordable.
Choosing a pre-owned bike helps reduce waste and extends the life of quality bicycles, making it a greener way to ride.
Easily part-exchange your old bike for an upgrade, making it simple to switch, save, and keep riding the best bike for your needs.