Description
Colnago V4 Ultegra Di2 Road Bike 2025
The Colnago V4 Ultegra Di2 Road Bike 2025 is a true all-rounder, designed for riders who value performance, style and versatility. With its clean, refined aesthetic and lively ride character, it delivers a balance of speed, responsiveness and comfort that makes every ride enjoyable.
The monocoque carbon frame is stiff, solid and reactive, benefitting from the same carbon layup research and aerodynamic development used in the creation of the flagship V4Rs. Paired with a Shimano Ultegra Di2 electronic groupset, the V4 offers smooth, precise shifting and a premium riding experience suited to everything from fast group rides to long solo efforts.
Technical Specification
| Frame | Colnago V4 Carbon |
| Fork | Colnago V4 Carbon |
| Headset bearings | Acros SS 1.1/4" 3547 Bearing |
| Thru axles | Threaded thru-axle front Ø12 L123 mm - hex 6 |
| Threaded thru-axle rear Ø12 L163.5 mm - hex 6 | |
| Wheels | Vision SC45 Carbon I23 |
| Tyres | Pirelli P7 Sport, 700x28c |
| Crank | Shimano Ultegra Di2, 52/36 |
| Bottom bracket | T47 |
| Chain | Shimano Ultegra Di2 |
| Rear derailleur | Shimano Ultegra Di2 |
| Cassette | Shimano Ultegra Di2, 11-34, 12-speed |
| Shifter | Shimano Ultegra Di2 |
| Handlebar | Colnago CC01 |
| Brake caliper | Shimano Ultegra Di2 |
| Brake rotor | 160 mm front / 140 mm rear |
| Saddle | Selle Italia Novus Boost Evo |
| Seatpost | Colnago Carbon |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Size Guide
Colnago V4 Ultegra Di2 Road Bike 2025 Sizing
Delivery & Returns
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Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 42% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
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