More specific Zipp Vuka Aero and the Felt Bayonet 3 Devox.
Adjustability.
Aero.
Stiffness.
Anything else I’m missing.
What say you?
I’ve got the Zipp Vuka Aero and SL Sprint Stem with the Vuka Evo 70 extensions. It works for me.
More specific Zipp Vuka Aero and the Felt Bayonet 3 Devox.
Adjustability.
I would say they are about equal here with with the felt getting the edge if you need lower stack and the zipp getting the nod for tilt.
Aero.
Eyeball says Felt by a long shot; however, I doubt any data exists outside of Felt for the Bayo3
Stiffness.
Most likely the Zipp takes the edge here but I don’t feel this is something that should be high on the list of wants.
Anything else I’m missing.
Availability: this is the biggest driver in the comparison. You will be very hard pressed to find the Felt bar, where the Zipp is found pretty much through any/every retailer.
What say you?
If you can find the Felt bar, buy it. If not, get a PD Aeria. 
Availability?
I use the alloy version, the Felt Bayonet 3 (a bargain at $300). It and the Devox are both available directly from Felt.
http://www.feltbicycles.com/usa/2016/Parts/TT-Tri/Handlebars-Extensions.aspx
Availability?
I use the alloy version, the Felt Bayonet 3 (a bargain at $300). It and the Devox are both available directly from Felt.
http://www.feltbicycles.com/usa/2016/Parts/TT-Tri/Handlebars-Extensions.aspx
The one on the website is the bayonet2. The Base bars of the Aluminum and Carbon version of the 3 are vastly different; however, the extensions, spacers, pads, and mounting hardware above the bar seem to be identical. The big plus on the Alloy version of the 3 is the ability to tilt, but that cause one to lose out on the low stack of the Devox version.
Below are the Bayonet 3 Devox, Bayonet 2 Devox, and lastly the Bayonet 3 Alloy
Sorry about that – I didn’t realize Felt is still selling the older model. The carbon bar was never on my radar.
I wonder how much of the stack height on the alloy version is offset by 12* of tilt? Regardless, I don’t think I could go back to a flat bar…
I have the Felt bayonet 3 and they are very adjustable. They come with tons of spacers to dial in you fit. Vuka only has a couple sizes to increase stack; 25 & 50 I think. According to to tririg.com test, felt beats the zipp in aero drag.
Edit : this is for aluminum bayonet, not devox.
Huh, hadn’t seen that graph before. Looks like we’ve reached peak aero on bars too.
http://www.tririg.com/...ite_Paper&page=2
Here’s the link to the the whole article (2014). There’s some more data if you’re interested!
Interesting that the Felt they tested was alloy… Compared to the carbon model, it’s 300g heavier, easy to tilt, and $500 less expensive. Pretty fast for a UCI legal bar, too.
I have the Felt bayonet 3 and they are very adjustable. They come with tons of spacers to dial in you fit. Vuka only has a couple sizes to increase stack; 25 & 50 I think. According to to tririg.com test, felt beats the zipp in aero drag.
Edit : this is for aluminum bayonet, not devox.
Just to keep this in context, the Zipp Vuka Alumina clipon used in this TriRig test is not the Vuka Aero model the OP was asking about. His newer carbon Vuka integrated aero bar has stack spacers in 5, 10, 25 and 50mm and offers a huge number of positional options, though pad and extension widths are limiters.