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 47% 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.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Bianchi Oltre XR4 CV Dura-Ace Disc Road Bike 2020
Bianchi's Oltre XR4 CV Dura-Ace Disc Road Bike combines Italian flair with a technology-packed frameset and top-drawer componentry. Using Computational Fluid Dynamics, the Oltre XR4 is engineered to optimise aerodynamics and control. It offers precision handling and includes vibration-cancelling Countervail technology for a smoother ride with reduced fatigue. A further benefit of this carbon composite material is increased strength and stiffness, and power transfer is excellent.
Shimano's flagship mechanical groupset - Dura-Ace - ensures precise and fast shifting and the disc brakes provide maximum stopping efficiency in all conditions. The carbon Vision 55 SC wheels are deep enough to cut drag without compromising stability, and there's clearance for wider, faster-rolling tyres.
Highlights
- 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.
Technical Specification
| 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 ST-R9100 |
| Front Derailleur | Shimano Dura-Ace FD-R9100 |
| Rear Derailleur | Shimano Dura-Ace RD-R9100, SS, 11-speed |
| Shift Levers | Shimano Dura-Ace ST-R9100, 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 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.
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