hey yall,
i’ve got a BMC TM02 (2017) with zipp vuka stealth base bars/cups and i’m trying to achieve a high-hands position. given that it is an old model base bar, i’m having a hard time figuring out what my options for a high-hands position are. does anyone run one of these and has achieved such a position?
hey yall,
i’ve got a BMC TM02 (2017) with zipp vuka stealth base bars/cups and i’m trying to achieve a high-hands position. given that it is an old model base bar, i’m having a hard time figuring out what my options for a high-hands position are. does anyone run one of these and has achieved such a position?
All the Vuka’s use standard 22.2 extensions. So anything you want to run should work. The cups depend on which particular model and vintage of Vuka you have (assuming this is the full bar/extension variant and not the bull bar and bolt on round handlebar extensions) . The earlier models had cup hardware that rotated based on selected pad width, which probably doesn’t work that well for cups designed to mount to a flat mount. The last version of the Vuka had flat cup mounts and additional tilt built into the pedestals.
Some of the aftermarket super-extensions also offer Vuka conversion mount options.
I have a Vuka Aero base bar, which is similar. I believe the difference is that the Vuka Stealth has a built-in stem. I’m on a circa 2014 TM01. I angled my extensions and cups by combining Zipp risers with a Drag2Zero angled riser and pole clamp. I use Culprit cups and 400mm Profile 50A extensions. This setup is solid and comfortable and I’m really happy with it. I will send a picture and the product links tonight. I think what I have is exactly what you’re seeking.
Edit. Corrected to say I have the Vuka “Aero” base bar.
Just be careful with getting your hands too high. I tested at A2 with both 70mm and 110mm rise Vuka extensions (as well as a bit of tilt) and the higher hand position on the 110 was measurably slower for me.
Below are the photos and links I described earlier today.
I used the Zipp riser first, because that sits nicely in the base bar. There is no tilt on that. I have actually paired 25mm and 10mm risers, because that’s the height I want. I can stack the risers by doing a minor amount of filing on the 10mm (top) riser and using bolts that are 10mm longer than the bolt for the 25mm risers.
After that, I added Drag2Zero’s 15 degree angled shim and pole clamp. Use the D2Z angled shims technical guide to verify your risers’ bolt spacing will work with them.
Finally, there’s the Profile Design 50A extensions and Culprit pads.
I have the same base bar and love what you did with the drag2zero angle shims and pole clamps. Would you still recommend this setup?
I have the stock C1 armrests on a 50mm riser, and want more pole angle than I can get with that setup. I have a 10mm wedge under the armrests, which helps, but want to get the extensions up higher. I have the vuka evo 110 extensions.
Unrelated question - what are you using on the base bar ends by the brakes? I have etap blips and haven’t found a better option that wrapping under bar tape. I’m quite hopeful that you have blips under those grips 
Ah I see… just the blip grips. Didn’t realize they would fit the base bar!
Aloha!
I would still recommend this setup. It’s going strong more than a year later.
I went from Zipp’s 70mm to 110mm extensions to the Profile extensions, which are also longer, to get the height, length and wrist comfort I wanted. I always used aluminum extensions because I could find and trial them for $50 or less.
The blip grips go onto the base bar with a little massaging. Isopropyl alcohol seems to be the best lubricant. The blip grips slide on easily and the alcohol evaporates after about 24 hours.
I’ve since installed a 12-speed 1x chainring, Rival AXS RD and Rival 12-speed cassette. I have 3D printed holders for SRAM’s wireless blips on the extensions that work exceptionally well. You can get them off Thingiverse. I haven’t figured out base bar shifting yet.
Awesome, thank you.
I haven’t made the jump to 12 speed yet, and not sure if I ever will since I have 3 different bikes with 11sp etap and don’t want to upgrade them all. Maybe in a few more years when the next generation tech comes out.