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My adventures in bicycling
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01st August 2010
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It’s a heavy, powerful vehicle z08. With a 6 speed, it’d get 13-14 mpg!
The circumference of each ball is biggest at the center and smaller near the ends. So, turning the balls at the same point from the center is a 1:1 ratio. As you move towards either end, then one end is spinning closer to the center (a greater distance) and one is spinning closer to the end (a smaller distance). This causes one end to spin slower (or faster) than the other end, giving various gearing ratios.
probably not. Then again, if a regular gearbox develops a leak and you don’t notice it in time, you’ll need to call a towtruck as well (or in case of a motorbike : push it home).
this is sick i want one
could it handle if you make it to cars
over 1000 torque what would it do i wonder
This is such an awesome bike. I have one. You have to get one to understand such a difference it makes
i don’t undestand how it works.
can you?
no gears, just two smooth surfaces contacting through the liquid. So what % of energy will be lost in that sliiiiide?
its a load of bolls
and it has more flors in it than a multy story car park lol good thinking tho
So if there is a fluid leak at all, the transmission would go slack and be rendered useless, correct? Is there a backup for failure?
why not if you can make it for bike so make it bigger or larger ?? so it can will be fit to a Mbike
I wonder if this would work on a motor cycle
as long as you don’t sell it, your ok
mmmmmmmmmmmmmmmmm
Its Like A Modern VerVariomatic
this is great
thats fucking awesome,, damn i love innovation
may i construct this machine?
nice idea, the basic design is simple in mechanical terms, but unless the internal parts are made from very strudy components, it would wear out very quickly!
wouldnt you have to keep calabrating it to keep the balls from slipping?
Sounds like most of the friction is coming from the folks here? LOL
@500group: boy, am I glad I didn’t know this thing couldn’t work before I went out for an hour long ride today on my spanking new Crescent Nuvinci. I’m no expert, but there was not the slightest sign of the extra friction you guys claim. No slipping. I never noticed the weight either (but now you said it’s so heavy, I’ll think about it all the time). For all others, rest assured, it works. The “high friction” if it’s there at all, is much too small to be noticed even by my lazy legs.
additionally deraillers change gears under constant load, ie your pedalling up hill and you dont have to back off to go to a lower gear VERY IMPORTANT
deraillers chaind and gears with their service requirements and complications are by far still the best soloution
to recap basic physics:
balls, cones, toothless belts, variators, cvt’s. all have HIGH FRICTION and are no good for pedal power
chains or toothed belts, gears and deraillers all have LOW FRICTION and are great for pedal power
the bottom line is its just physics, the nu-vinci will always require more pedalling effort and that is a big deal for certain conditions, for a trip around the corner not a problem for a long ride big problem
so the nu vinvi may find an application for casual biking over a short distance
it may be more reliable who know although the plates need constant pressure on them and may be prone to slippage up hills etc certainly deraillers are horrible when it comes to reliability also