Does anyone have information on the Vision 3-spoke wheel at interbike? There’s a picture at TriRig dot com.
looks more like the Corima version than the HED H3.
They look rather nice. I’m interested to know weights and widths for F/R.
Also, I would like to see some closer pictures of the rim profile and blades’ shapes.
If those ridiculous decals come off I might opt for one of those over a Trispoke for my front hunt. Good grief I thought Zipp decals were obnoxious, Vision takes the lead!
What a shame they’re only tubular.
I’ll have to take a close look at those in Vegas…and ask about any tunnel data.
I’ve suggested to some folks at Zipp before that they should make a modernized trispoke, a “firecrest” trispoke, if you will 
Thanks, I’ll be looking forward to your thoughts on them.
I’ll have to take a close look at those in Vegas…and ask about any tunnel data.
I’ve suggested to some folks at Zipp before that they should make a modernized trispoke, a “firecrest” trispoke, if you will
Speaking of, those Vision wheels look a bit like an updated version of the old Zipp Trispoke…
I’ll have to take a close look at those in Vegas…and ask about any tunnel data.
I’ve suggested to some folks at Zipp before that they should make a modernized trispoke, a “firecrest” trispoke, if you will
Speaking of, those Vision wheels look a bit like an updated version of the old Zipp Trispoke…
Yeah, the graphics on the Vision sort of make the spokes look offset from the center (like the Zipp) more than they really are…and look how much deeper the rims are as compared to that old Zipp wheel!
Do you have any idea why they don’t re-design the H3 as a 4 spoke wheel, an H4 if you will? Maybe I’m completely off track, but it seems (and I’ve read others propose this same theory) that the “twitchiness” in cross winds is due in part to alternating 2:1 distribution of side forces about the steering axis.
Do you have any idea why they don’t re-design the H3 as a 4 spoke wheel, an H4 if you will? Maybe I’m completely off track, but it seems (and I’ve read others propose this same theory) that the “twitchiness” in cross winds is due in part to alternating 2:1 distribution of side forces about the steering axis.
I don’t think that’s it…draw a vertical line through the hub and then in your mind rotate the wheel. Although at one point there will a 2:1 distribution of total spoke area on each side of that line, if you sum up the area x the distance from the line, you’ll see that it’s 1:1 no matter the position.
Think of it this way…what do you think would happen if you held a trispoke wheel horizontal and allowed it to pivot on that line? Would it stay level or tilt to one side or the other?
Gravity acting uniformly on the masses of the spokes is analogous to the uniform wind load on the spoke areas. Make sense?
if you sum up the area x the distance from the line, you’ll see that it’s 1:1 no matter the position.
So the cross product sum (moment of area?) on either side of the imaginary axis will always be equivalent. Am I following correctly?
I’ll have to take a close look at those in Vegas…and ask about any tunnel data.
I’ve suggested to some folks at Zipp before that they should make a modernized trispoke, a “firecrest” trispoke, if you will
Speaking of, those Vision wheels look a bit like an updated version of the old Zipp Trispoke…
How aero were these old wheels? I think they look so cool and would love to put a pair on my new Zipp bike.
Supposedly not very aero. The rims were shallow and the spokes are fairly blunt compared to the H3s. Of course by todays standards the rim shape may not be too bad. IIRC it was shallow but blunt somewhat like a FC without the buldged walls. The shallow Corima rim has done well in testing with a similar shape.
When it came out a guy I rode with quite a bit had a pair as his every day wheels. He rode a Rigi which was a steel tubed bike with an ultra short wheelbase. The seat tube was to small diameter tubes side by side so the wheel could fit in between.
if you sum up the area x the distance from the line, you’ll see that it’s 1:1 no matter the position.
So the cross product sum (moment of area?) on either side of the imaginary axis will always be equivalent. Am I following correctly?
Yep 
Anyone seen any pricing info?
Bump
Anyone heard a date and/or price?? Visions page has no info, nor any contact info as far as I can see… edit - I see there is a phone number on their site, will try that Monday…but anyone heard anything?
thx!
Anyone seen any pricing info?
The funny thing is, I talked to the designer of the wheel at length at interbike, and when I asked what the price was going to be, even HE didn’t know…
I talked to the designer of the wheel at length at interbike
Anything interesting?
Very cool wheel. I think i need one. In Stealth version of course :0)