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.
We've partnered with PedalSure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
Bianchi Oltre XR4 Dura-Ace Di2 Disc Road Bike 2020
Combining Italian flair with a top spec, the Bianchi Oltre XR4 Dura-Ace Di2 Disc Road Bike looks as good as it feels to ride. The carbon frame and fork have been created using Computational Fluid Dynamics to ensure every detail is aerodynamically optimised, and include Bianchi's patented Countervail technology to absorb much of the harshness of the roads, reducing fatigue and allowing you to ride comfortably for longer. This carbon composite material also strengthens and stiffens the frame.
A perfect pairing for a frameset of this calibre, Shimano's top electronic components - Dura-Ace Di2 - shift fast with precision from just a light touch of the lever, and hydraulic disc brakes work effectively in all weather conditions for confidence at speed. The Vision 55 SC wheels are lightweight and versatile, with a 55mm depth and full carbon rim construction. Up front, the Vision Metron 5D integrated bar and stem look sleek and minimise drag, along with the aero seatpost.
- Computational Fluid Dynamic (CFD), to refine and optimise every aspect of the Oltre XR4 frameset, to ensure the new XR4 Disc is a masterpiece of aerodynamic design
- Bianchi’s leading aero disc design delivers a superior aero road experience
- The Oltre XR4 frame and fork are designed to accommodate wider tyres. The extra clearance enhances comfort and grip
- Countervail®, exclusive to Bianchi CV models – cancels 80% of vibrations resulting in increased control and reduced muscle fatigue. The result is a smooth ride and a racer who can stay focused in their fastest, most efficient aerodynamic position for longer
- The Vision Metron 5D bar and stem gives the Oltre XR4 the cleaner, more aero front end for added speed and efficiency
Please note: Build as per technical specifications. Images for representation of colourway only.
|Frame||Bianchi Oltre XR4 carbon with Countervail, 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 Countervail, disc, thru-axle 12x100mm|
|Headset||FSA Orbit with UD carbon custom metron 5D ACR compatible top cap|
|Handlebar/stem||Vision Metron 5D integrated aero bar, bar/stem integrated, material UD weave carbon, drop 125mm, reach 80mm, Di2 compatible, finish black decal ext|
|Bar Tape||Black soft microfibre tape with shockproof eva-139|
|Front Brake||Shimano BR-R9170 hydraulic disc brakes, flat mount caliper|
|Rear Brake||Shimano BR-R9170 hydraulic disc brakes, flat mount caliper|
|Rotor||Shimano SM-RT900 Centre Lock, 160mm front and rear|
|Brake Levers||Shimano Dura-Ace Di2 ST-R9170|
|Front Derailleur||Shimano Dura-Ace Di2 FD-R9150|
|Rear Derailleur||Shimano Dura-Ace Di2 RD-R9150, SS, 11-speed|
|Shift Levers||Shimano Dura-Ace Di2 ST-R9170, 2x11-speed|
|Cassette||Shimano Dura-Ace CS-R9100, 11-28t|
|Crankset||Shimano Dura-Ace FC-9100, Hollowtech II, 52/36t, crank length - 170mm-47/53cm, 172.5mm-55/59cm, 175mm-61cm|
|Front Wheel||Vision 55 SC|
|Rear Wheel||Vision 55 SC|
|Front Tyre||Vittoria Corsa G2.0 Graphene 700x25, clincher|
|Rear Tyre||Vittoria Corsa G2.0 Graphene 700x25, clincher|
|Saddle||Fizik Arione R1, carbon braided|
|Seatpost||Bianchi Oltre full carbon aero; clamp with alloy head adjustable and reversible +/- 35mm, length|
|Accessories||Bianchi Reparto Corse carbon bottle cage / Bianchi Loli 600ml water bottle|
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 specified), 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. We do not install accessories to bikes, including mudguards.