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.
The BallisTec carbon frame is light, stiff and compliant for a lively but composed ride.
Dependability and accuracy make this 11-speed gear setup an impeccable performer.
Consistent, powerful and reliable braking in all weather conditions, including the pouring rain.
An aero frameset works in unison with sculpted bars, stem and seatpost to reduce drag markedly.
Cannondale SystemSix Ultegra Road Bike 2021
Blending a sophisticated carbon composition with a wind-cheating profile and a smattering of high-end components, the Cannondale SystemSix Ultegra Road Bike is the quickest choice for any cyclist across a multitude of road riding applications.
A full BallisTec carbon frameset is realised with aerodynamically refined tube shapes to grant power transmission, comfort and stunningly low drag. When combining this frameset with the aero seat post, handlebars and stem the SystemSix becomes the fastest option across flat valleys, within sprints, down descents and even on climbs of up to 6% in gradient. Generous frame-to-tyre clearance accepts tyres widths of up to 30mm while a racy geometry offers a perfect balance of nimbleness and composure.
The Vision SC55 wheelset complements the technically advanced frameset perfectly thanks to it’s lightweight, stiff and aerodynamic carbon rim that is also tubeless-ready tyre compatible. Gear changing duties are charged to the ever-reliable and precise Shimano Ultegra setup that flicks through its ratios with ease. The hydraulic disc brake configuration, also from the Shimano Ultegra range, completes the bike via its powerful and assured stopping power that affords confidence across all riding conditions, even torrential rain.
- An aerodynamically refined road bike that slices through the air to deliver the fastest possible ride experience across flat to heavily rolling parcours
- Full Cannondale BallisTec carbon frameset is light, stiff and compliant
- Drastically tuned frame tube profiles lower aerodynamic drag significantly to help any rider go faster on the flat and on any climb with an average gradient of up to 6%
- Aero seatpost, handlebar and stem complement the wind cutting frameset
- Hidden and clean cable routing inside the frame offers minimal drag but easy serviceability
- Clearance for up to 30mm tyres gives extra comfort and enhanced control across any road surface
- Race inspired geometry donates precise and composed handling
- Vision SC55 carbon wheels are light, aerodynamic and tubeless-ready tyre compatible
- Shimano Ultegra 11-speed gears are accurate and reliable
- Shimano hydraulic disc brake set up bestows confidence inspiring stopping power and control
|Frame||Cannondale BallisTec Carbon, integrated cable routing with Switchplate, SAVE, PF30a, flat mount disc, 12x142 Speed Release thru-axle|
|Fork||Cannondale BallisTec Hi-MOD Carbon, 1-1/8” - 1-1/4” steerer, 12x100mm Speed Release thru-axle, flat mount disc, 55mm offset (47-51cm frame sizes) 45mm offset (54-62cm frame sizes)|
|Headset||Cannondale Integrated, 1-1/8” - 1-1/4|
|Bottom Bracket||Cannondale Alloy PressFit30|
|Stem||HollowGram KNØT, Alloy with cable cover, -17 degree|
|Handlebar||HollowGram KNØT SystemBar, Carbon, 8-degree pitch adjust|
|Bar Tape||Cannondale Bar Tape, 3.5mm|
|Front Brake||Shimano Ultegra hydraulic disc brake, 160mm RT800 disc rotors|
|Rear Brake||Shimano Ultegra hydraulic disc brake, 140mm RT800 disc rotors|
|Brake Levers||Shimano Ultegra, hydraulic disc brake|
|Front Derailleur||Shimano Ultegra, braze-on|
|Rear Derailleur||Shimano Ultegra, 11-speed|
|Shift Levers||Shimano Ultegra, 11-speed|
|Chain||Shimano HG601, 11-speed|
|Cassette||Shimano 105, 11-30, 11-speed|
|Crankset||HollowGram, BB30a, OPI SpideRing, 52/36 chainrings|
|Front Wheel||Vision SC55, carbon clincher disc rim, tubeless-ready, Vision Sealed Cartridge 12x100mm hub, Vision DP Spokes x 21|
|Rear Wheel||Vision SC55, carbon clincher disc rim, tubeless-ready, Vision Sealed Cartridge hub 12x142mm, Vision DP Spokes x 24|
|Front Tyre||Vittoria Rubino Pro Bright Black, reflective strip, 700 x 25c, clincher|
|Rear Tyre||Vittoria Rubino Pro Bright Black, reflective strip, 700 x 25c, clincher|
|Saddle||Prologo Dimension STN NDR, steel rails|
|Seatpost||HollowGram 60 KNØT Carbon, 330mm|
|Pedals||Available to be purchased separately|
|Accessories||Cannondale wheel sensor|
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.