Posts Tagged ‘nuvinci’

Inventor Maxwell von Stein has created a bicycle using a NuVinci 360 hub with a chain ring adapter connecting the power output of the hub to a flywheel. This allows the rider to aid in braking by first shifting so that power is transferred from the bicycle wheel’s motion and transferred to the flywheel. Then when a boost is desired (when trudging uphill perhaps?) shifting in the other direction will transfer the power from the flywheel to the rear wheel. Cool!

Using the NuVinci continuously variable transmission, the rider is able to smoothly transfer energy to and from the flywheel by shifting up or down.

Check out the video here:

http://www.sciencefriday.com/program/archives/201108126

Source: http://www.notechmagazine.com/2011/08/flywheel-bicycle.html

About a month ago, Youtube user gearfreezone (assumed to be associated with Fallbrook Technologies, makers of the Nuvinvi hub) posted 9 instructional videos for the NuVinci 360 which is a continuously variable transmission hub. They cover wheel building, sprocket installation, and shifter installation to name a few.

I’ve embedded all of the videos at the Hubstripping page about the NuVinci 360 for quick reference.

Peter Eland from velovision.com has written an interesting article about internal geared hubs.

Here is his conclusion:

CONCLUSIONS 

It’s great to see internal gear hubs developing to 

the extent we’ve experienced in these reviews. The 

Alfine in particular has the ease-of-use and style to 

charm everyday riders away from derailleurs and 

to introduce them to the low-maintenance joys of 

hub gearing. The SRAM too is a user-friendly hub, 

but perhaps more aimed at the performance rider 

who will appreciate the wider, more even spread of 

gears and won’t mind the extra cost. 

The Rohloff is in a different league in every 

aspect: range, price, tandem rating and quality. 

It shifts reliably but not quite as smoothly as the 

Alfine, and the lower range noise is irritating, at 

least on a non-worn-in hub. But it’s still the only 

truly wide-ratio hub gear, and many will find it 

well worth the money. Strong riders who break 

other hub gears may well end up with the Rohloff 

too, as the only hub they can’t destroy.  

The NuVinci was a very pleasant surprise 

– a novel transmission which really works. Yes, it’s 

heavy, and perhaps a bit draggy, but it’s bomb- 

proof and super easy to use for non-mechanically 

minded riders: a welcome addition to the hub gear 

world and one which deserves to do well. 

More details can be found here:

http://www.velovision.com/mag/issue29/vv29hubgears.pdf





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