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 CV Ultegra Di2 Disc Road Bike 2022
With carbon tube shapes designed to cheat the wind, an aerodynamic seatpost and an integrated bar / stem with fully enclosed cable routing, this is a very quick bike indeed. However, this speed is not at the expense of comfort, as the Countervail layup of the carbon suppresses fatiguing vibrations from the road and the added clearance for wider tyres allows for greater cushioning and grip.
The 12-speed Ultegra Di2 electronic groupset now features wireless transmission from the shifters to the derailleur and battery loom, and has native Bluetooth connectivity so it can be customised and monitored by the Shimano E-Tube app. Hydraulic brakes, now with the Servo Wave technology from the mountain bike ranges, provide fantastic control and power so that the Oltre descends as quickly as it climbs.
Ideal for riding and racing in a variety of weather conditions, Fulcrum’s Racing 400 tubeless-ready wheelset is shallow enough to cope with crosswinds but deep enough to still offer an aerodynamic advantage at speed.
Please note: Images are for illustration of colourway only. Specification is as listed.
- Oltre XR4 carbon frame and fork with Bianchi CV vibration suppression
- Shimano Ultegra Di2 12-speed electronic groupset
- Shimano Ultegra hydraulic disc brakes
- Vision Metron Reparto Corse 5D ACR integrated handlebar and stem
- Fulcrum Racing 400, tubeless-ready wheelset
|Frame||Bianchi Oltre XR4 carbon with Bianchi CV, mechanical/electronic shifting compatible, headset 1.5", PressFit 86.5x41mm BB, disc brake internal cable routing, flat mount calipers, thru-axle 12x142mm|
|Fork||Bianchi full carbon with Bianchi CV disc, 1.5" integrated head, disc brake internal cable routing, flat mount caliper, thru-axle 12x100mm|
|Headset||FSA Orbit with UD carbon custom Metron 5D ACR compatible top cap|
|Bottom Bracket||Shimano SM-BB72-41B|
|Integrated Handlebar and Stem||Vision Metron Reparto Corse 5D ACR Disc, full UD Weave Carbon, drop 125mm, reach 80mm, Di2 compatible, Sizing - 100x400mm (47/50cm bikes), 110x420mm (53/55cm bikes), 120x420mm (57/59cm bikes), 130x440mm (61cm bikes)|
|Bar Tape||Bianchi black soft microfibre with shockproof Eva-139|
|Front Brake||Shimano Ultegra Di2 hydraulic disc brake caliper with Shimano SM-RT800 Center Lock 160mm rotor|
|Rear Brake||Shimano Ultegra Di2 hydraulic disc brake caliper with Shimano SM-RT800 Center Lock 160mm rotor|
|Brake Levers||Shimano Ultegra Di2 ST-R8170 hydraulic disc|
|Front Derailleur||Shimano Ultegra Di2 FD-R8150 12-speed|
|Rear Derailleur||Shimano Ultegra Di2 RD-R8150 12-speed|
|Shift Levers||Shimano Ultegra Di2 ST-R8170 12-speed, hydraulic disc brake|
|Chain||Shimano Ultegra 12-speed|
|Cassette||Shimano Ultegra CS-R8100 12-speed, 11-30T|
|Crankset||Shimano Ultegra FC-R8100, Hollowtech II, 50x34T, Crank Length - 170mm (47/53cm bikes), 172.5mm (55/59cm bikes), 175mm (61cm bikes)|
|Front Wheel||Fulcrum Racing 400, tubeless-ready, Center Lock|
|Rear Wheel||Fulcrum Racing 400, tubeless-ready, Center Lock|
|Front Tyre||Pirelli P ZERO Race, 26-622, 127TPI, aramid breaker, clincher|
|Rear Tyre||Pirelli P ZERO Race, 26-622, 127TPI, aramid breaker, clincher|
|Saddle||Fizik Argo Vento R3, nylon carbon-reinforced shell with WingFlex, carbon braided 7x10mm rail, 260x140mm|
|Seatpost||Bianchi Reparto Corse Full Carbon Aero with an adjustable alloy head for +/- 35mm of positional changes. Length - 250mm (47cm bikes), 300mm (50/53cm bikes) 350mm (55/59cm bikes), 380mm (61cm bikes), 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. 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.