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  1. #1
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    Need help w/ 3speed internal gear coaster brake hub

    Hello,

    I'm trying to find an internal gear hub with coaster brake that has the most gears. I don't want any of the equipment associated with conventional derailleur gear systems or conventional cantilever brake systems. I recently found the Shimano SG-3C41 DX. It is a 3 speed internal gear coaster brake hub. However I can't seem to find information on how to shift its gears. I first learned of this hub while reading about the Africa Bike 3.0 from Kona Bikes. The Africa Bike uses the Shimano SG-3C41 DX.
    There doesn't seem to be any gear shifters on the handle bars and there doesn't seem to be any cables leading to the rear hub. So I assume you shift gears by pedaling backwards slightly like the Sachs Torpedo Duomatic 2 speed hub or the Bendix 2 speed kickback hub.

    Anyone got any information about this hub?

    Thanks
    Last edited by enter_narne; 04-19-08 at 09:35 PM. Reason: changed title to better match post

  2. #2
    Senior Member Kimmitt's Avatar
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    That pic is of a bike without a 3-speed hub; the 3-speed connects to a twist shifter on the handlebar.

  3. #3
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    Thanks for the reply, Kimmitt. I know that Shimano makes more than one version of the SG-3C41. is it possible there is a version that has no cable or gear shifter?

  4. #4
    Immoderator KrisPistofferson's Avatar
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    Quote Originally Posted by enter_narne View Post
    Thanks for the reply, Kimmitt. I know that Shimano makes more than one version of the SG-3C41. is it possible there is a version that has no cable or gear shifter?
    They all have the cable and gear shifter. I have the one you are talking about on a Townie, and it's pretty neat.

  5. #5
    Senior Member DieselDan's Avatar
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    Shimano does have the Coasting system that is essentially a 3-speed, electronic controlled, automatic. You do have to use a special dynamo front hub to power the shifting control box. It does have a coaster brake. No shifter, no cables, but some wiring to set up, and has a control screw to adjust shift point all the way to a second gear only single speed mode.
    Bikes use brakes to stop.

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

  6. #6
    Senior Member Kimmitt's Avatar
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    Yep -- but I checked the schematics, and the one on the Africabike is a standard one with the twist shifter.

    I've got one on my Townie as well, and it's quite nice.

  7. #7
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    Well, the internal gear hub with coaster brakes and the most gears is the Sram i-Motion 9 speed:



    http://www.sheldonbrown.com/harris/sram.html

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