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The original SystemSix was one of Cannondale’s first forays into carbon-fibre road bikes. Now, Cannondale has entered the highly competitive aero-road bike genre with the revival of its historic🌃 race bike name.
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The main goal was to c🌄reate a bike that was more aerodynamic, more of the time. Cannondale discovered that for,🎉 say, a 75kg rider putting out 300 watts, the SystemSix will save a claimed 30 watts of effort over the company’s Evo.
In a 200m sprintꦍ at 60kph the SuperSix would be 0.4 seconds faster — in distance terms, four bike lengths. We’ve seen plenty of races won or lost by much less.
The carbon Cannondale range splits into two. Those like the one tested use a mix of high-grade fibres while a smaller, premium range of Hi-Mod bikes♌ employ more high-modulus fibres to add stiffness and reduce weight. They’re aimed at elite riders or tho🃏se with deep pockets.
My carbon model comes with the always-brilli🉐ant with a sp🍒eed-orientated 52/36, 11-28 gearing combination. It’s one of the best mechanical groupsets ever made: slick, accurate and reliable with excellent brakes to match.
My bike receives a bar and stem from Vision. The Metron 4D Flat MAS bar would set you back close to £500 if bought separately, with a £100 Trimax OS stem, so it’s a pri๊cey cockpit. The bar’s a great shape, its angled-forward flat-top sections offering a broad hold and enough width to rest your forearms on if you want to ease int✱o an aero tuck.
The anatomic drop is the same as Vision’s other bars and o൩ne that I love. Its semi-compact shape offers a great in-the-drops feel and𒁏 the flattened profile of the drop makes for a great hold.
Cannondale’s new wheels, the KNOT64s, are deep for a road wheel at 64mm, but weigh an impressive-for-the-size 1,600g a pair. The super-wide rim, in excess of 30mm externally and 21mm wide i𒁃nternally, wears a 23mm tyre.
When mounted to the KNOT64 rims they come up to 25.8mm and the bike can handle up to a 30mm tyre. The wheels are clamped in place via a new type of thru-axle that, rather than having꧟ to be removed co𒀰mpletely, is retained in the wheel itself.
Within a few miles the overridin🃏g feeling on the SystemSix is familiar, like riding the Evo, one of the best-handling race bikes ever. As soon as I got chance to throw the SystemSix around it felt just as exciting as the Evo. There’s a bit of resistance from the deep wheels under acceleration but, once you’re up to speed, they hold on to it.
I expected a bit of chatter and vibration through a fraღme with this much aero shaping, and 23mm tyres, but the combination of the clever frame constructi💜on and Vittoria Rubino tyres does an admirable job of killing road noise.
The SystemSix is what an aero bike should be: brutally fast when you need it but always nimble and sharp handling, tempered with a qualit🌄y of ride that won’t beat you up a🔯nd sap your energy.
When a design can pull off all of these traits you’re getting close to the perfect all-rounder. It may be carrying a bit of extra weight over some of its rivals but it’s worth remembering that in this guise, although expensive, it’s half the cost of so✅me of those rivals.
Cannondale SystemSix Carbon Dura-Ace specifications
- Sizes: 51cm, 54, 56, 58*, 60 (*Tested)
- Weight: 8.23kg
- Frame: BallisTec Carbon
- Fork: BallisTec Carbon
- Chainset: Cannondale Si, 52/36
- Bottom bracket: Cannondale press-fit
- Cassette: Shimano Dura-Ace 11-28
- Chain: Shimano Ultegra
- Mechs: Shimano Dura-Ace
- Shifters: Shimano Dura-Ace
- Wheelset: Hollowgram KNOT64
- Tyres: Vittoria Rubino Pro G+, 23mm
- Wheel weight: 1.21kg (f), 1.56kg (r)
- Stem: Vision Trimax OS
- Bar: Vision Metron 4D MAS flat carbon bar
- Headset: Tapered
- Saddle: Prologo Dimension Tirox
- Seatpost: KNOT Carbon
- Brakes: Shimano Dura-Ace hydro disc, 160/ 140mm IceTech rotors
Cannondale SystemSix Carbon Dura-Ace geometry
- Seat angle: 73.5 degrees
- Head angle: 73 degrees
- Fork offset: 4.5cm
- Trail: 5.7cm
- Bottom bracket drop: 6.9cm
- Chainstay: 40.5cm
- Seat tube: 54cm
- Top tube: 60cm
- Head tube: 17.2cm
- Stack: 58cm
- Reach: 39.8cm
- Wheelbase: 100cm
BikeRadar Score: 4 stars
BikeRadar Verdict: "A rapid-handling race bike 🦂with cutting-edge aerodynamics"
- Highs: Sublime Evo-like handling, spellbinding speed and smooth with it
- Lows: Deep-section wheels can be a bit ponderous on climbs
- Buy if: You favour aero benefits over light weight but don’t want to compromise comfort or handling
Price: £4,999