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  1. #1
    Fitter of road/ironman TriEngineer's Avatar
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    Manual/auto gear shifting

    [FONT=Tahoma][COLOR=RoyalBlue]Hey whatever happened to the AutoBike? Was it one of those invention like the Hoolahoop? Did it just fell out of popularity? For all the reasons that we like driving a manual transmission in a car, do we all like to have to change all our gears in a bike?

    I am sure Shimano could have developed something similar whereby the gears shift for you to a larger rear gear, say when you are going up a hill, and then you can shift when you are on flat to go faster...

    Eng

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  2. #2
    Senior Member Retro Grouch's Avatar
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    Have you actually seen, much less tried to ride an Autobike? I've had the experience of working on a couple. YUCK! I think they have fallen out of style because it was basically an overpriced piece of poop.

    Actually, my vote for the next major breakthrough in bicycle drive trains is a continuous variable transmission. A year or so ago I read some posts from a fellow (in Germany I think), who was working on one. His idea was to provide a shift lever so that you could control the effort if you wanted to for hill climbing or sprinting. Otherwise, you'd be at a constant cadence all of the time and the bike speed would increase and decrease according to conditions.

  3. #3
    cab horn
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    Pfft, automatic gears. Where's the fun in that. Next thing you know you'll be putting a motor on it.

    Oh wait.

  4. #4
    Fitter of road/ironman TriEngineer's Avatar
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    Quote Originally Posted by Retro Grouch
    because it was basically an overpriced piece of poop.
    No way!! OPP are the greatest things on earth...(Overpriced Piece(s) of Poop)....right....:-|

    That's really neat, kind of like the Audi chaindrive or something...

    2006 Norco CRR Ultegra
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    2010 Cervelo P3
    2012 Cervelo R5 VWD

  5. #5
    Senior Member DieselDan's Avatar
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    The Autodrive is an underengineered and overpriced gimmick. It's noisy, like riding with your derailliuer out of adjustment. It doesn't even shift when you want it to.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  6. #6
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    the problem is you don't shift to pedal faster. you shift to keep the same cadance when going faster. how is something going to know how fast youy want to pedal and how fast you want to go? thats why it will not work.

  7. #7
    Zippy Engineer Waldo's Avatar
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    Autobikes were horrible, the landrider is an improvement but is still ridiculously overpriced and requires shifting the front derailleur on your own. I've had a good many people come into the shop to convert their autobike to a manual shifter.
    As to the original poster, Shimano has had an auto nexus hub for a couple years now.

  8. #8
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    but shifting because of peddling speed is not what you want. the only time you can go faster would be downhill. and if you stop without peddling slower you wil lbe in the wrong gear.

  9. #9
    ÖöÖöÖöÖöÖö Dannihilator's Avatar
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    Don't get me started on auto shifting bikes.
    Strike like an eagle and sacrifice the dove.
    Words and Stuff.

  10. #10
    Humvee of bikes =Worksman Nightshade's Avatar
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    The closest I've ever come to a working "auto" shift system
    is one by Shimano in the early 80's. This system worked by
    keeping the chain always turning allowing you to select
    gears while you coasted.

    I have this system on my Giant built Schwinn World Tourist
    and have become quite fond of the easy shifting I get in
    town. I like the fact that I can select a gear before I need
    it while I coast. Very handy when approaching stop signs.

    From what I've read here and elsewhere this system didn't
    sell well. I'd guess that when it was offered everybody
    felt like they had to pedal to shift or it wasn't cool.
    From where I stand if these same folk's would try it now
    they might think differently.

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