Astra 105 Di2 CosmicChroma White Bike is no longer available.

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Basso Bikes Astra 105 Di2 CosmicChroma White Bike 2026

£3,999.00

Finance available with Novuna Personal Finance

This Item Is In Stock With Our Supplier Dispatched between 17th Apr and 19th Apr, if ordered before 12:00pm today.
Part Number:

BX2331JAS

GTIN:

5014977791750


Meet the perfect all-rounder, the Astra 105 Di2 Cosmic S Chroma White Bike by Basso Bikes. Boasting an exceptional design, it pushes the boundaries between road racing and rugged, off-road tracks. The Astra isn't just about meeting your cycling needs, it's about exceeding them.

Not only does this versatile performer grant the thrill of speed on asphalt, its innovative design improves stability and comfort across diverse terrains. The frame isn't just lightweight, it's strong and durable, maintaining Basso's race-ready DNA whilst providing an accessible bike for daily enthusiasts.

Frame highlights include dropped seatstays, 12mm higher stack height and 3mm shorter reach, which contributes to a more comfortable and relaxed cycling experience. With 35mm tyre clearance, you can fit wider tyres and explore off tarmac landscapes.

The superb quality 3k Toray Ca High Modulus Carbon Fibre frame is a testament to Basso's cutting-edge research and unyielding commitment to performance and durability. This lightweight yet durable frame enhances your ride by reducing stress and vibration on off-road ventures, making the ride as enjoyable as the destination.

Furthermore, the Paradigma Integration System offers multiple cables internal routing without compromising the bike's handling. You'll enjoy swift, precise manoeuvrability even with internalised cables. And should you need to maintain your bike or alter your stem length, this intelligent design simplifies the process.

And let's not forget the 3B Clamp System Gen 2. This seamless and stylish integrated clamp solution not only looks great but significantly dampens vibrations, making your ride smoother and more comfortable on uneven surfaces.

Bike Specifications that add to its all-round capabilities include the Shimano 105 Di2 12x components, disc brakes, and rotors. A KMC 12x Silver/Black chain is alongside a San Marco Monza saddle, Microtech All Road handlebar, Basso Paradigma stem, and Basso Integral Carbon seatpost. A Mavic Cosmic S Centre Lock Disc UST wheelset and Schwalbe Lugano II K-Guard 700x28c tyres round off this incredible package.

Whether you're a professional athlete or just enjoy saddling up for daily spins, the Astra 105 Di2 Cosmic S Chroma White Bike is your reliable partner for all terrains.

Please note that bike specifications may be subject to change due to availability.

Professionally Built Before Dispatch

Every bike purchased from On It Sports is built in-store by our experienced team and undergoes a full pre-delivery inspection (PDI) before being carefully prepared for shipping.

We take pride in ensuring each bike leaves our workshop properly assembled, checked, and ready for final setup, helping you enjoy a smooth and confident first ride.

Some final assembly will be required on delivery, but we aim to keep this to a minimum wherever possible.


Free UK Mainland Bike Delivery

  • Free UK mainland delivery on bikes over £1000*
  • Bikes are professionally built, checked, and securely boxed before dispatch
  • Shipped using trusted UK courier services

*Bikes purchased through Cycle to Work schemes are excluded from free shipping.

A standard bike delivery charge of £45 applies.


Collect In Store & Free Basic Bike Fit

If you choose to collect your bike from our store, you’ll receive a free basic bike fit as part of your collection.

This includes:

  • Correct saddle height and position
  • Basic reach and comfort checks
  • Confidence that your bike is set up correctly from day one

Once your bike is ready, we’ll contact you by email to arrange a convenient collection and bike fit appointment.


Returns, Refunds & Exchanges

If you’re not completely satisfied with your purchase, please let us know. We offer a 30-day return or exchange period on items purchased with a valid receipt.

To be eligible for a return or exchange:

  • Items must be unused and in a resaleable condition
  • Original packaging, accessories, labels, and any free or promotional items must be included

Returns requested after 30 days cannot be accepted.

Save with Cycle to Work

We accept Cycle to Work vouchers on most full-price bikes through a wide range of approved schemes. Simply choose your bike, proceed through checkout, and select your Cycle to Work scheme at the payment stage.

Our checkout will guide you through the process, including any additional information required by your chosen scheme.


What You Can Include

Your Cycle to Work voucher can be used on:

  • Bikes
  • Helmets
  • Shoes
  • Clothing
  • Essential cycling accessories

This allows you to maximise your voucher and get everything you need in one purchase.


Using Cycle to Work at Checkout

When you reach payment:

  1. Select Cycle to Work as your payment option
  2. Choose your scheme from the dropdown list
  3. Enter the required voucher or scheme details
  4. Complete checkout

Our team will then process your order and contact you if anything further is required.


Important Information on Sale Bikes

* Sale bikes purchased using a Cycle to Work voucher may be subject to a surcharge.

This reflects the commission charged by Cycle to Work scheme providers.

If you’re considering using a Cycle to Work voucher on a discounted bike and want to confirm pricing before ordering, please contact us and we’ll be happy to help.

Why Shop With ONIT Sports?

At ONIT Sports, we aren't just a retailer; we’re a hub for the South Wales cycling and triathlon community. As a leading independent cycle specialist in South Wales, we know that the right bike isn't just about the specs - it’s about how it feels on the road, the trail, or in a TT. Whether you’re visiting us in-store or browsing online, you’re getting advice from people who live and breathe life on two wheels.

Expert Build & Safety Check

Every bike that leaves our hands is professionally assembled and safety-checked by our fully trained technicians. We don’t just "box" bikes; we prepare them so that they arrive at your door, set-up and ready for the first mile.

Premium Delivery & Setup

We offer fast, secure UK shipping on all bikes. For that extra touch of care, we also provide a FREE bike fit on bikes collected in store - ensuring your new pride and joy is setup for you, ready for your first ride.

Flexible Finance with Novuna & PayPal

We believe top-tier performance should be accessible. We offer a range of flexible finance solutions through Novuna Personal Finance, as well as PayPal options, allowing you to spread the cost with a plan that suits your budget

Cycle to Work Specialists

Looking to save on your next ride? We proudly accept a wide range of Cycle Scheme vouchers, helping you make the most of tax-free cycling benefits with zero hassle.

Start your cycling journey with On It Sports, and hit the road with the total confidence that only expert-level support can provide.

Colours Chroma-White White
Sizes XL
Brand Basso Bikes
Model Year 2026
Barcodes 5014977791736, 5014977791743, 5014977791750, 5014977791767, 5014977791774, 5014977791781, 5014977791798
SKUs / Part Numbers BX2331JAL, BX2331JAM, BX2331JAS, BX2331JAXL, BX2331JAXS, BX2331JAXXL, BX2331JAXXS

Please note: Manufacturers can sometimes change the specification of the products from time to time.