I was trying to find a thread that would contain all the known stack height data for aerobars. So I’m starting this thread in the hopes that people will post the data they know, and then myself and other ST readers will have a go-to thread to look up aerobar data.
In case there is any ambiguity about stack height in this case, it will be meant to be from the center of the base (handle) bar to the top center of the aerobar pad where the forearms will be placed, at the lowest point (A). When an aerobar has available spacers to give a range of stack height, it will be useful to know the full range, from the default low setup to the max height. When known, it will also be nice to know the initial aerobar height as measured from the center of the base bar to the center of one of the aerobar extensions where it attaches to the bar (B). If the aerobar extensions attach below the base bar, the measurement would be negative. Lastly, it would be helpful to distinguish between measured and published data, and as a bonus, if the aerobar allows for interchanging extensions in a standard size.
So I’ll start with the only two aerobar setups I have access to, and that’s the Syntace C2 Ultralite and the Bontrager XXX Lite. And then I can provide data on the new Felt aerobar setup on the B2 since I saw it today.
Syntace C2 Ultralite - size L - measured
7.5 cm base bar to top center of arm pad
3.5 cm base bar to center of aerobar
No stack height spacers available (that I know of)
Cannot interchange extensions
Bontrager XXX Lite - 42cm C-to-C
6.5 cm base bar to top center of arm pad
1.8 cm base bar to center of extension
No stack height spacers
Extensions are standard size as on Profile, etc.
Felt Aerobar - B2 (and other models?) - proprietary
2.5 cm base bar to top center of arm pad
0.0 cm base bar to center of extension (they pass through the base bar)
Stack height spacers provided, at least 2.0 cm worth, maybe more, in increments
Extensions are standard size as on Profile, etc.
Howzabout: Profile Carbon Cobra, Zipp Vuka, Oval Concepts, TTT, etc.?
And please provide any corrections if my measurements are not considered accurate.