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Thread: 4 key sprockets for 28-29 Indian Four

  1. #1
    Join Date
    Jan 2006
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    Canada
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    267

    Default 4 key sprockets for 28-29 Indian Four

    To those who know:- Is anyone cranking out early four key motor sprockets for the early Ace and later 28-29 Indian Four? I am looking for a 17 tooth speciman in new or near new condition. Most Indian gurus supply parts for 32 and later so that wont help me. Can anyone bail me out on this one? I might even take an 18 tooth critter!... Thanks a million...Joe
    Joe AMCA# 3435

  2. #2
    Join Date
    Jan 2010
    Posts
    126

    Default

    post a photo of it,mayby some has one they dont know what bike its fore.
    I have many which I dont know what bikes they fit....sow a photo would help

  3. #3
    Join Date
    Jan 2006
    Location
    Canada
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    I wont be taking the sprocket off just for pictures, BUT, it stands alone in the sprocket world being one with FOUR (4) keyways like none other I know of. The sprocket hub is offset so one side is flat and has a 6 degree taper. Bore is .875" and tapers to aprox .725". These sprockets were inherited from the Ace and used in 1928 and most of 1929 till Indian went with a larger mainshaft and one large single key sprocket which are readily available. Its the four key that is rare, you got one like that in 17 or 18 tooth? Uses 5/8 pitch chain....Any help or source would very much be apreciated, thanks a lotsa bunch....Joe
    Joe AMCA# 3435

  4. #4
    Join Date
    Feb 2009
    Location
    England UK
    Posts
    143

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    Hi Joe
    Maybe a lame suggestion/costly but sounds like it`s the sort of job Slojo could make looking at the fine job on his cannonball bike.

    Greg

  5. #5
    Join Date
    Jan 2010
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    126

  6. #6
    Join Date
    Jan 2006
    Location
    Canada
    Posts
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    That sprocket may be the one. However, its hard for me to tell which way the taper goes. Mine has the smaller bore at the hub side. In other words, the hub mounts outward with the flat side towards the cases. That particular one is 16 tooth and too low a ratio for my application but it looks like an Ace or Indian four early model sprocket. Is it available?...Joe
    Joe AMCA# 3435

  7. #7
    Join Date
    Jan 2010
    Posts
    126

    Default

    mine has the flatside out.bore on mine is,there is some rust 0,75"-0.853"
    and the keys is around 0.177".
    I think there is to long way fore me to track down the rest of parts to built a bike sow if you can use it send me a pm

  8. #8
    Join Date
    Jun 2009
    Posts
    115

    Default

    Roy Davies had some nice gears he made at Tiffin, maybe he can make one.

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