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.
Cervelo R-Series Ultegra Di2 Disc Road Bike 2021
Fast up hills, a joy on the descents, the R-Series Ultegra Di2 Disc Road Bike is a masterclass from Cervelo. Don't let the classic looks of the frameset deceive you, this is an all-carbon layup with Squoval Max tubing. Cervelo have combined the best attributes of square and oval tube shapes so you can enjoy the perfect stiffness to weight ratio that makes this such a great climbing bike. The frame also has aerodynamic qualities to help you make the most of the flat sections of your ride too.
Whether you race or not, you'll enjoy the instant and reliable shifting of the Shimano Ultegra Di2 groupset, complete with hydraulic disc brakes that allow you to modulate your braking performance in any weather. Choose your gear ratio at the touch of a button and allow the electronic derailleurs to do the rest. With a mid-compact chainset and a wide 11-30t cassette, you'll always find the right cadence, regardless of the parcours.
Rolling on a set of Reserve 35 wheels, your climbing speed is boosted by the lightweight carbon rims. That 35mm rim depth keeps the assembly light and provides good aerodynamic assistance without being affected by crosswinds; a superb all-round road wheel.
- Lightweight climbing bike with all-day comfort and superb handling
- Squoval Max tubing in the frame allows for superb stiffness to weight ratio with aerodynamic benefits
- Shimano Ultegra Di2 R8070 11-speed electronic groupset
- Powerful hydraulic disc brakes
- Instant electronic shifting
- Mid-compact crankset with wide-ranging cassette gives you all the gears you need from steep hills to flat group rides
- Reserve 35 carbon tubeless-ready wheelset and Vittoria Rubino Pro TLR tyres
|Frame||Cervelo All-Carbon R-Series, Squoval Max tubes|
|Fork||Cervelo All-Carbon, Tapered R-Series Fork for Disc|
|Headset||FSA IS2 1-1/8 x 1-1/2|
|Bottom Bracket||JY-BB 24|
|Stem||Cervelo CS027 Alloy|
|Handlebar||Cervelo AB07 Ultra Light Alloy|
|Front Brake||Shimano Ultegra Di2 8070 Hydraulic Disc, SM-RT800 160mm rotor|
|Rear Brake||Shimano Ultegra Di2 8070 Hydraulic Disc, SM-RT800 160mm rotor|
|Brake Levers||Shimano Ultegra 8020|
|Front Derailleur||Shimano Ultegra Di2 8050, 11-speed|
|Rear Derailleur||Shimano Ultegra Di2 8050, 11-speed|
|Shift Levers||Shimano Ultegra Di2 8070, 11-speed|
|Cassette||Shimano Ultegra CS-R8000, 11-speed, 11-30t|
|Crankset||Shimano Ultegra 8000 52/36t|
|Chain||Shimano CN-HG701, 11-speed|
|Front Wheel||Reserve 35mm DT350, 20 spokes, 21mm internal width carbon rim, Center-Lock disc brake, tubeless-ready clincher|
|Rear Wheel||Reserve 35mm DT350, 24 spokes, 21mm internal width carbon rim, Center-Lock disc brake, tubeless-ready clincher|
|Front Tyre||Vittoria Rubino Pro TLR G 25c tubeless-ready clincher|
|Rear Tyre||Vittoria Rubino Pro TLR G 25c tubeless-ready clincher|
|Saddle||Fizik Vento Argo R5|
|Seatpost||Cervelo SP19 27.2 Carbon|
|Pedals||Available to be purchased separately|
|Accessories||Cervelo Rear Accessory Mount|
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.