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Author Topic: no gears  (Read 1614 times)
faultymonk
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« on: February 05, 2008, 05:46:44 PM »
Whoa!  I just found out about a continuously variable internal hub - http://www.atcnuvinci.com/.

Reviews at http://phil.veloblog.ch/post/7/333 and http://bikehugger.com/2007/07/mondo_nuvinci_review.htm.  Looks very cool, but um, the thing is over 9 lbs!

http://www.youtube.com/watch?v=Smijjy832X0 - video of the working internals.
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Art
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« Reply #1 on: February 06, 2008, 01:55:01 AM »
Killer stuff !! 

Looks like something we'll have to re-engineer out of titanium in order to be attractive...

...9 pounds Huh??!!!  Damn...

Thanks, Shane !
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faultymonk
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« Reply #2 on: February 07, 2008, 12:34:19 PM »
Quote from: Art on February 06, 2008, 01:55:01 AM
Looks like something we'll have to re-engineer out of titanium in order to be attractive...

I googled a bit.  Seems replacing the large steel bearings with ceramic bearings is probably ideal if they're trying to save weight (40% lighter, supposedly).  Still leaves you around 5 1/2 lbs though. =)
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Art
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« Reply #3 on: February 07, 2008, 07:42:36 PM »
Oooohh...  Ceramics!!!   Cool

MMMMmmmmmmm...
« Last Edit: February 07, 2008, 07:44:17 PM by Art » Logged

faultymonk
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« Reply #4 on: February 22, 2008, 05:23:21 PM »
Woah - http://www.costco.com/Browse/Product.aspx?Prodid=11246082

I'm guessing that we're going to start seeing bikes with these hubs.  Oh, and they managed to reduce the weight by just over half a pound on the 2008 models.

BTW, on an impulse, I ended up buying one of these hubs on eBay.  Guess it's finally time for me to learn how to build a wheel.
« Last Edit: February 22, 2008, 05:30:52 PM by faultymonk » Logged

odog4life
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« Reply #5 on: February 27, 2008, 12:24:01 AM »
it has balls!
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Alex Thompson
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« Reply #6 on: February 27, 2008, 03:41:13 AM »
Quote from: odog4life on February 27, 2008, 12:24:01 AM
it has balls!

You can call them "planetary gears" sweetie.
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faultymonk
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« Reply #7 on: February 28, 2008, 11:52:18 AM »
Quote from: Alex Thompson on February 27, 2008, 03:41:13 AM
Quote from: odog4life on February 27, 2008, 12:24:01 AM
it has balls!
You can call them "planetary gears" sweetie.

Apparently Motortrend wrote an article titled, "The NuVinci Code: At Last, a Tranny with Some Balls" - http://www.motortrend.com/features/editorial/112_0609_technologue/.

=)
« Last Edit: February 28, 2008, 12:12:55 PM by faultymonk » Logged

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