Along those lines, it’s interesting how the Felt AR held its own quite well in this test. Given the OEM spec of the standard Dura-Ace caliper brake, I’d bet the gap would shrink a fair bit with something like a TriRig Omega instead. It’s close enough I wouldn’t be surprised if a different choice of bar/stem/wheel/tire/groupset/skewer could even put it ahead of the SystemSix. I also wouldn’t be shocked if it couldn’t; I have no data to say for sure.

Of course, I can’t say I love dealing with the BB mounted rear brake and there’s certainly no room to cram in a 30mm tire. Horses for courses, I guess.

Tom A. wrote:

So...that means on wheels alone, it adds MORE than 3W...

Now then, if all that other shaping was also done with an integrated rim brake setup, instead of slapping on standard calipers and exposed cabling... ;-)

At a speed of 30km/h (18.6mph) on a flat road a traditional road bike requires 140 watts while the SystemSix will save you around 10% power at that speed.

I know I am late to the party, but as I was reading the road.cc article, this caught my attention:



140W -> 30km/h? Sounds a bit ambitious, no?

Hi Tom,

Actually, we tested a nice aero Tririg caliper and didn't add any cables at all.

Cheers,
Damon

Here's the article:
https://www.slowtwitch.com/..._Aero_Drag_6073.html

Let's hope so!

Damon, thanks for educating Cannondale on how to do Stack/Reach on the smaller sizes - the figures for the 47 look much better than for my 48 CAAD9. My CAAD 9 will be due for replacement soon, but the disc brakes, rule it out for me. I shall wait and see what you do with the CAAD 14 (next year?; presumably no '13'), which I hope will come with a rim brake option.