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.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
Cyclescheme can save you up to 39% on a bike and accessories. Visit our Cycle to Work Scheme page to learn more and claim.
Bianchi Oltre XR4 CV Disc Ultegra Di2 Road Bike
As their flagship race bike, the Bianchi Oltre XR4 CV Disc Ultegra Di2 Road Bike delivers signature Italian styling and a responsive, performance-driven ride. It combines an incomparable ride-character with class-leading power transfer, to provide an exhilarating and focused experience on the road. The state-of-the-art aerodynamic design is behind each tube, constructed with the help of advanced fluid dynamics software to cut through the air and offer an aero-advantage. If you are looking for a high-tech ride with uncompromising performance - the Oltre XR4 CV is it.
Engineered with the Bianchi CV vibration dampening system, the Oltre provides an incredibly smooth ride with minimal road-buzz. The unique CV composite material combines viscoelastic material with carbon fibre architecture to dissipate and dampen vibration, leaving you ready to push harder for longer free from muscle fatigue. Backed by a host of wins under Team Jumbo-Visma, this race-proven technology leaves you focused and fresh for when it counts.
The Vision Metron 5D integrated handlebar is stiff and highly aerodynamic, matching the high performance of the Oltre frameset. Optimised to minimise drag and provide comfortable ergonomics, the sleek integrated appearance matches the frames fast intentions. Shimano Ultegra Di2 drivetrain adds precise electronic shifting performance, and Fulcrum Racing 418 deep-section wheels further push the aero credentials of this ride.
- Bianchi CV construction removes up to 80% of road vibration over other carbon layups
- Shimano Ultegra Di2 11-speed electronic shifting
- Vision Metron 5D integrated handlebar
- The bike of choice for Team Jumbo-Visma
- Fulcrum Racing 418 disc brake deep-section wheelset
- Highly-aerodynamic tubeset with race-orientated geometry
|Frame||Bianchi Oltre XR4 Disc carbon with Bianchi CV, mechanical/electronic shifting compatible, headset 1.5", PressFit BB 86,5x41mm, Disc brake internal cable routing, flat mount, thru-axle 12x142mm|
|Fork||Bianchi full carbon with Bianchi cv, 1.5" integrated head, disc brake internal cable, flat-mount caliper, thru-axle 12x100mm|
|Bottom Bracket||Shimano SM-BB72-41B|
|Handlebar/Stem||Vision Metron 5D ACR integrated aero bar, material UD weave carbon, drop 125mm, reach 80mm, Di2 compatible, extension - 100x400mm (47/50cm), 110x420mm (53/55cm), 120x420mm (57/59cm), 130x440mm (61cm)|
|Bar Tape||Bianchi black soft microfibre tape with shockproof EVA|
|Front Brake||Shimano Ultegra BR-R8070 hydraulic disc|
|Rear Brake||Shimano Ultegra BR-R8070 hydraulic disc|
|Brake Levers||Shimano Ultegra Di2 ST-R8070|
|Rear Derailleur||Shimano Ultegra Di2 RD-R8050 SS 11-speed|
|Shift Levers||Shimano Ultegra Di2 ST-R8070 2x11-speed|
|Chain||Shimano Ultegra CN-HG701-11, 11-speed|
|Cassette||Shimano Ultegra CS-R8000, 11-28t|
|Crankset||Shimano Ultegra FC-R8000 50x34T, Hollowtech II, Crank Length - 165mm (44cm), 170mm (47/53cm), 172.5mm (55/59cm), 175mm (61cm)|
|Front Wheel||Fulcrum Racing 418 disc brake|
|Rear Wheel||Fulcrum Racing 418 disc brake|
|Front Tyre||Vittoria Rubino IV G2.0 Graphene, 700x25mm, clincher|
|Rear Tyre||Vittoria Rubino IV G2.0 Graphene, 700x25mm, clincher|
|Saddle||Fizik Argo Vento R3, k|
|Seatpost||Bianchi Oltre full carbon aero, clamp with alloy head adjustable and reversible +/- 35mm, length - 250mm (47cm), 300mm (50/53cm), 350mm (55/59cm), 380mm (61cm), setback - 25mm/-10mm|
|Pedals||Available to be purchased separately|
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.
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 or contact Customer Care. We do not install accessories to bikes, including mudguards.