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Auto-Shift Bike

automatic bike transmission
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like cars, bikes now have many more gears than just one. So, design an automatic transmission that can work on a bike to optimize your efficiency for the few of us that have trouble shifting gears on our bicycles (guilty.) also like a car, this might have a low gear activated manually, for steep hills and things.
fischerman, Apr 16 2011

[link]






       ummmm... Google came up with over 1.8million results for "bicycle automatic transmission" including videos.
FlyingToaster, Apr 16 2011
  

       Welcome to the Halfbakery, [fischerman].
normzone, Apr 16 2011
  

       Don't feel bad, we've all done it.   

       Okay, well I have, anyway.
Alterother, Apr 17 2011
  

       Well, yes you definitely have.
FlyingToaster, Apr 17 2011
  

       [fischerman], check out the help file over there on the left, under meta. It's an entertaining read and will be a great help to you. We all had to read it as preparation for the quiz (you heard about the quiz, didn't you?)
normzone, Apr 18 2011
  

       If you're thinking of motorcycles, that's already done too. Most scooters have a belt type CVT. There have been a couple of bigger bikes built with more conventional automatic transmissions, but it's not good. When you have substantial power available, the prospect of an unexpected gearshift in mid corner is unappealing. The natural layout of motorcycle controls doesn't force the rider into a choice between shifting and other controls. Motorcyle gearchanges are very light and quick. There is not enough to be gained from auto transmission to justify the extra weight and power drain.
Twizz, Apr 18 2011
  

       [marked-for-deletion] Widely known to exist, I'm afraid.
jutta, Aug 05 2012
  
      
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