Been thinking of this for some time and was going to use the Vision brake levers as a platform, but found the Cane Creek’s in a box in my closet and decided to kill a few hours.
Levers need a lot more shaping, will make them much more aero, thinner, cosmetically beautiful, etc.
Thinking, I may get some black spandex or a wide inner tube to wrap around so that wind flows over the lever then back around the back side of the bar.
Fun!
Been thinking of this for some time and was going to use the Vision brake levers as a platform, but found the Cane Creek’s in a box in my closet and decided to kill a few hours.
Levers need a lot more shaping, will make them much more aero, thinner, cosmetically beautiful, etc.
Thinking, I may get some black spandex or a wide inner tube to wrap around so that wind flows over the lever then back around the back side of the bar.
Fun!
Hehehe…you’re actually putting into practice the exact same idea I had after mis-cutting the extensions on my Vision basebar. Cool.
I like the “mono-extension” as well based on the Deda Clip-one bracket (I’ve got one of those as well). Very Obree-ish 
Are those really your elbow pads?
That was exactly what I was talking about earlier and I think would work perfectly on the Vision base bar. Could you use the mounting hardware for the Vision levers and just replace the lever itself with a straight version and make it aero. This is what I would love to do with my Vision base bars and will look at it once I have moved in the next few weeks and have a work area.
I guess you could not use the Vision levers at this point with no material left to attach them too.
Excellent work.
I like the “mono-extension” as well based on the Deda Clip-one bracket (I’ve got one of those as well). Very Obree-ish
maybe Obree-esque? The extension completely disappears when I’m in the aero position, which I think is cool, looks like I just have my two hands out there in a fist.
Are those really your elbow pads?
I narrowed the VT bars to 34cm, so there is no round portion to mount elbow pads. I had some Profile pads mounted to the extension stolen from the T2’s, but this put me up too high. So, I grabbed some packing foam, and taped it on. Gets me very low, the bar is flattened so its pretty comfy. If you look, I put a little extra foam on the outside to act as a cup of sorts and keep my elbows tucked in tight.
Looks fairly homemade, but that’s because it is. Also, my “eyeball windtunnel” confirms its all pretty aero.
When at A2 wind tunnel, using easton attack bars on a P3C, I tested SRAM carbon brake levers in their normal position at 0 yaw (bike alone).
We then turned the brake levers so that they were completely parallel to the base bar (like the Tula’s, and your setup). We observed a slight increase in CdA!! (an increase in drag)
We did not test at other yaws in this run, but this experiment shattered my expectations that a basebar faired by the brake levers would be more aerodynamic.
This just goes to show that “what looks aero” is not necessarily more aero.
Good luck to you with your work, but without wind tunnel testing your specific configuration, such modifications are a crap shoot in my honest opinion.
Dave Linenberg
That was exactly what I was talking about earlier and I think would work perfectly on the Vision base bar. Could you use the mounting hardware for the Vision levers and just replace the lever itself with a straight version and make it aero. This is what I would love to do with my Vision base bars and will look at it once I have moved in the next few weeks and have a work area.
I guess you could not use the Vision levers at this point with no material left to attach them too.
Excellent work.
The visions would definitely be more aero, but they are much more difficult to make too than the Cane Creeks. Well at least, one added step. Also, you need to ruin a set of Visions and drill out the pivot “bolt”. If not ruin—permanently alter.
I could still run the Visions though, because I’ve made an extender using dowel and aluminum tubing----would just need to cut the alu tubing down to about an inch.
Perhaps the sleeve over the whole setup creating a 15:1 basebar (in some places) would prove otherwise?
You’re right though, without an actual tunnel it’s tough to say.
You’re right though, without an actual tunnel it’s tough to say.
For 0 yaw (as that experience above describes)? Actually…it’s not all that tough