I bought a SuperSix Evo frameset to replace my old frameset. The main reason for this is because I wanted a frame that can do it all, climbing and aero. A lot of frame manufacturers have moved away from making a separate climbing bike and an aero bike now because they found that the two were moulding together, Cannondale included. I was looking at the Cannondale, a Specialized Tarmac and a Trek Madone. The Madone was a bit too ostentatious for me. The Tarmac is lighter than the SuperSix, but there were two reasons I went for the SuperSix. Everyone and I mean everyone comments on the handling of the SuperSix. One review I read about the frame highlighted that the fork weight of the SuperSix is not light, but that this helps with the stiffness and handling. The other reason, I thought the SuperSix looked the best by far.
Ride handling is incredible. I have Hunt carbon rims with carbon spokes with the frame and I can throw it into any corner and not worry about it slipping out from under me. Comfort I found is good, better than my last frame. One thing that I think helps this is the seat stem is narrow and has a small amount of flex in it, so helps slightly going over bumps. I also run tubeless tyres which I have always thought made the biggest difference to comfort. Because I bought a frameset I was able to set the reach and stack to suit me though. I use it with a single 10mm spacer in the head and a 400x100mm handlebar.
As for aero, my old frame was a Vitus ZX-1 EVO which is very aero. With this frame I was only really expecting the frame to be lighter, I wasn’t expecting aero gains. However, on my first ride on the new frame I set a personal best on one of my segments that has an average speed of about 40kmph. When I looked at the average power over the segment, my new time had a lower power than my previous best. Thinking this was a fluke, I decided to try another segment on my next ride and got the same result. I estimate that the SuperSix is about 3% faster than the Vitus was.
After I bought the frame, I read an article on cycling news where they tested the drag of a number of world tour bikes both with and without the rider. Interestingly they also tested the drag at different wind angles. Their results showed that the SuperSix, with the rider on, basically has the same aero drag from 0-15 degree wind angle whereas some of the other bikes increased in drag as the wind angle increased. I must say, if you are cycling in light wind you don’t really notice if you are in a headwind, tailwind or sidewind as it doesn’t really affect the bike.
Weight of the frame is not the absolute lightest on the market. I use it with the Hunt wheels and a SRAM Red groupset. Total bike weight is about 7.5kg.
If you are worried about the handlebars, I too had the same issue when I got the frame. At the time, the systembar r-one wasn’t available. I was using a FSA integrated handlebar with the Vitus frame and I was able to use this at first with the SuperSix. There are FSA to SuperSix headset pieces available online. I have now got the systembar r-one on the bike.
All in all, I would say it is a fantastic frame.