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2019 Cannondale SystemSix Carbon Ultegra

Retul bikefit only £99 with all road bikes


The all-new SystemSix was created with one simple goal in mind – to be the fastest and most efficient UCI-legal road bike in the world. Its unique fully integrated design delivers more speed, in more situations, than any other bike on the market today. For race day fast. And everyday fast. It's the world's fastest bike.

No ordinary aero bike: faster up, down and on the flats!

This one: Shimano Ultegra; Cannondale Hollowgram SI SpideRing 52/36 chainset; Fulcrum Racing DB alloy wheelset

Class Rating


Frame type


Size options

51, 54, 56, 58, 60cm


Acid Red

The SystemSix's aerodynamic advantage make it faster than ligtweight climbing bikes on any climb up to a 6% gradient or more, depending on rider's power to weight. To put that in perspective, most revered HC climbs in the Tour only average 7-8%.

Descending a 5% grade at 60kph, a rider on a modern lightweight race bike would need to expend over 300W to match a ridder pedalling at a 200W recovery pace on a SYstemSix. Meaning SystemSix riders can truly recover. While going faster.

Compared to a modern lightweight race bike, at 48kph (~30mph). SystemSix saves you over 50W - huge savings considering an average Cat 1 racer's functional threshold power is around 350W. And even when drafting, you're still getting up to 60% of that benefit.  

Retul Bike Fitting - 33% off with all new road and cross bikes

Whilst we are very experienced in matching our customers to the correct size of bike, we highly recommend that you take a step further with any cycle equipped with drop handle bars and opt for a comprehensive bike fit. We use Retul's dynamic 3D motion capture system.  Retul allows us to accurately measure every degree of movement and millimeter of distance allowing us to optimise your riding posture, making your ride more ejoyable by making you more efficient while reducing the chance of injury and increasing your comfort on the bike.

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