The Cannondale SuperSix EVO
Brand identity is a funny thing. When I was a kid, Ford represented the car my dad drove. Later, it came to stand for an American car I wouldn’t own even if you gave it to me. More recently it has come to symbolize the very best in how a company can reinvent itself and survive under its own steam. At least, that’s how I see them.
Cannondale has had a similarly curious arc. There was a time when the brand made accessories, not bikes; they were a competitor to Rhode Gear, not Trek. And while large-diameter tubing aluminum bikes weren’t solely their domain, the company named for a train station achieved greater market penetration than Klein ever did. In the 1990s, I recall the company as being a repository for talent, fresh ideas and ambitious marketing. Actually, the company wasn’t just ambitious in its marketing, it was as ambitious as any bike company had ever been.
Then came motorcycles and the bankruptcy. For a while, the brand felt like damaged goods and though I was a fan, I wasn’t sure they’d survive with their full reputation intact.
Though Cannondale has stayed at the forefront of aluminum development and construction, the Connecticut company was by any standard late to the carbon fiber game. The Six13 may have used an innovative method to join carbon fiber to aluminum, but nothing could change that a bike featuring three carbon fiber main tubes joined to an aluminum head tube and rear triangle was an idea that dated to the first Bush presidency.
With the SuperSix, Cannondale got into the carbon fiber game in a serious way. It had the hallmarks found in its competitors’ bikes: It was light, stiff and reasonably lively feeling. However, it wasn’t a particularly special bike. The problem wasn’t so much Cannondale as it was the market. By 2008, there was a near glut of really good carbon fiber bikes on the market. There was a much shorter list of truly extraordinary bikes.
It wasn’t too long ago that in purchasing a carbon fiber bike you had to choose between stiff and light. The industry has essentially solved that problem. So what separates the good bikes from the great ones? Road feel. The knock against most magazines’ reviews of bikes is that the reviewer always credits the bike with being “torsionally stiff and vertically compliant.”
Even for riders who haven’t ridden a dozen different bikes, there is widespread acceptance that as bikes gain stiffness in torsion they lose flex—compliance—in every other dimension. However, the quest for torsional stiffness combined with vertical compliance isn’t quite as mythical as the unicorn.
For those of you who have followed the development of the Specialized Tarmac, it is the perfect example of how a bike that is stiff in torsion can be tuned to take some of the sting out of the rear triangle. The original Tarmac SL was a very good bike. Two years later Specialized introduced the Tarmac SL2. It was stiffer in every direction, but it was also livelier feeling. That rear end, though, was a bit brutal on long rides. Two years after its introduction the company followed up with the Tarmac SL3. The front triangle remained unchanged, but the rear triangle was redesigned with both new tube profiles and a new lay-up. Ride the two bikes over the same roads and you’ll quickly feel how the rear end doesn’t chatter as much. It feels as if you let 5 psi out of the rear tire.
Back to Cannondale.
I’ve just spent two days riding the brand-spankin’-new SuperSix EVO. This bike is to the previous SuperSix what the Bugatti Veyron is to the Chevy Camaro.
The bike boasts some impressive numbers, such as a normalized weight of 695 grams. It has scores the highest stiffness-to-weight ratio ever recorded: 142 Nm/deg/kg. That’s more than 15 percent higher than the Specialized Tarmac SL3 and more than 40 percent higher than the Trek Madone 6 SSL.
We can talk numbers all day long, but based on my experience, there seems to be a tipping point in ride quality when you near the 900g mark for a frame. I can’t claim this is true for every bike out there, but my A-list of bikes I’ve ridden, which includes the Tarmac SL3, the Felt F1, F2 and Z1 and Cervelo R3 SL, were all at or below 900g.
My sense isn’t that the weight is the issue. Weight is just the canary in the coal mine. What gives these bikes their lively ride quality is the incredible compaction achieved in their construction. Tap a tube with your fingernail and you’ll get a near-metallic-sounding “tink.”
The SuperSix EVO possesses these same qualities. And like the Felt F1, it employs hollow carbon fiber dropouts, which both reduce weight and increase the lively feel of the rear triangle without increasing stiffness. What helps to separate the SuperSix EVO from other similar bikes is the fact that the chainstays have been flattened along the horizontal plane once they clear the chainrings.
Cannondale says it didn’t set out to make the lightest bike, the stiffest bike, the most aero bike or even the smoothest-feeling bike. What they came up with is an incredible blend of those qualities. They say they wanted the most efficient bike out there. It’s hard to say they’ve created the most efficient bike on the market, but it’s easy to say it’s among the most efficient. I haven’t previously ridden a bike that offered as much torsional stiffness while feeling as smooth over rough pavement.
With the introduction of the SuperSix EVO Cannondale has effectively reinvented itself as a bike company. This is an extraordinarily sophisticated bike, the result of three years of work … and it shows.
I’m looking forward to getting one of these to review next month. In the meantime, for even more details you can check out my piece for peloton magazine.