A bike with Infinite Gears: Novara Gotham

Replies

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  Anoop Kumar

  Its looks cool, hope it will resolve the problem of jamming of gear which changing.
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  Kaustubh Katdare

  Pardon my limited Mechanical Engineering knowledge; but why'd they call it an 'infinite gears' system? I've seen the video on the link but it's still not clear. What I'm more interested in knowing is does the system make me put lesser efforts uphill?
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  pradeep74m

  Ya the bike clearly makes uphill an easier task. The bike distinguishes the amount of effort required to perform the task which is different from the traditional gearing system where you have to decide the right number of gear for the uphills and flat surface.
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  nibhani

  i m not g

  pradeep74m

  A NuVinci bike effectively has an infinite number of gears. You can adjust it smoothly, without worrying about clicking into gears, to provide the precise right amount of resistance. You can start at a very low gear to pedal easily and then smoothly ramp up to a higher gear as you gain speed. And since everything is internal, repairs are rarely necessary. It's a revolution, really--one of the most fundamental changes to the bicycle in decades.
  
  
  The basic concept is pretty simple. As in other internally geared systems, a traditional front chain ring and cog are used to provide power, but the entire transmission resides within the rear hub, rather than the changing ratio between a front chain ring and a set of rear cogs determining the relationship between power input and output.
  
  Full details:#-Link-Snipped-#

  i m not getting the concept of this byke,,can u explain me clearly?
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  nibhani

  how

  pradeep74m

  Ya the bike clearly makes uphill an easier task. The bike distinguishes the amount of effort required to perform the task which is different from the traditional gearing system where you have to decide the right number of gear for the uphills and flat surface.[/quote

  pradeep74m

  Ya the bike clearly makes uphill an easier task. The bike distinguishes the amount of effort required to perform the task which is different from the traditional gearing system where you have to decide the right number of gear for the uphills and flat surface.

  .i m not getting that how can u say it as infinite gear vehicle...?

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  pradeep74m

  What they are stating is effectively infinite number of gears. You shouldn't take the literal meaning as it is. If you study the full details clearly the amount of resistance you can give is not limited by the number of gear as in conventional system. Here you can choose the amount of resistance you need without limitation of numbered gear system.
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  gohm

  So it seems to work on a similar principal as a cvt system found on scooters and formula 500 race cars. Is that right?
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  pradeep74m

  Ya it functions similar to cvt.
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  CE Designer

  The_Big_K

  Pardon my limited Mechanical Engineering knowledge; but why'd they call it an 'infinite gears' system? I've seen the video on the link but it's still not clear. What I'm more interested in knowing is does the system make me put lesser efforts uphill?

  I think popsci.com may have over-exhaggerated the description. What this sytem offers is, like the regular cvt, is an infinite number of gear ratios within its range. That is the range it is designed for. Within that range you can access different gear ratios in an incrimental manner rather than discrete pre-determined gear ratios. This means you can gradually increase torque and speed. This answers your last question K, yes it should make uphill traverse easier. I think its an amazing design of CVT. What of the cost of this? #-Link-Snipped-# If i wanted to buy the unit itself how much will it cost me?
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  Kaustubh Katdare

  is an infinite number of gear ratios within its range

  That makes more sense. 'Infinite Gear' looks to be marketing term they're using. Infinite number of gear ratio is what they're offering.
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  pradeep74m

  CE Designer

  I think popsci.com may have over-exhaggerated the description. What this sytem offers is, like the regular cvt, is an infinite number of gear ratios within its range. That is the range it is designed for. Within that range you can access different gear ratios in an incrimental manner rather than discrete pre-determined gear ratios. This means you can gradually increase torque and speed. This answers your last question K, yes it should make uphill traverse easier. I think its an amazing design of CVT. What of the cost of this? #-Link-Snipped-# If i wanted to buy the unit itself how much will it cost me?

  The gear unit alone costs around 350$.
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  CE Designer

  pradeep74m

  The gear unit alone costs around 350$.

  Waw and thats US$ right?
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  pradeep74m

  CE Designer

  Waw and thats US$ right?

  Yes, its US$.