2016 Cannondale EVO Etap 13.8#'s
2012 Cannondale Supersix EVO etap 13.7#'s
2017 Cannondale SUPER X Force 16.0#'s
2016 Cannondale FatCad2 28.1#'s
2011 Cannondale Carbon Flash 1 17.9#'s
2008 Giant Trinity A1 (cheapass 50mm carbon clinchers)
No easy road goes anywhere worth going
For example, part of the reason why the Toyota Prius gets such "high" gas mileage isn't necessarily that it is a hybrid, it is the body shape and details in the design that minimize drag. Drag is in large part affected by the way the air ends off of the object.
Yup. Since we're primarily talking about pressure drag, they just need to push the separation region as far back as possible. TT helmets and tube profiles are now using less streamlining and more boundary layer manipulation to lower the pressure drag. The vortex vanes on LG's vortice helmets and the 'tripwire' on BMC's new tube shape are examples. They just need to keep the flow attached to the helmet.
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prendrefeu wrote:I am also not an engineer, but taking a look at the 'aero' claims by LG (Course Helmet) and Carrera (Radius/Razor) it seems that these two offerings are attempting to maintain ventilation while allowing for some aero qualities of the helmet overall
I know enough of aerodynamics to understand there is more than making it look like a tear drop
But that said I think the Carrera looks completely generic... not different than the average Giro. I'm sure I'm missing something, but the problem is that only a few salesmen put it up as aero, Carrera themselves seem rather sparse with info.
RADIUS, Revolutionises the Pro helmet. Developed using the innovate "ATF" (Aluminium Tech Frame) system, Radius offers the best aerodynamic penetration (CX) which is synonymous of optimised internal ventilation and less frontal air resistance.*
Nice words, but best compared to what? Best of every road helmet? Best Carrera?
Not saying other manufacturers don't do the same thing, but with LG and Giro I can see the differences, this helmet looks amazingly generic. But hey, if it works I'll be in line buying one as it sure looks less silly (I need that as I am just pack fodder).
Not a Bontrager fan but the new Ballista is supposed to be among the best now in aero and good air flow. Personally, I have the Evade(venerable) and Protone which are still up there in performance. I ride the Evade in cooler weather and Protone in the summer.
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