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  1. #1
    Senior Member geebee's Avatar
    Join Date
    Mar 2004
    Location
    Tasmania, Australia
    My Bikes
    GT3 trike,Viper chopper, electric assist Viper chopper,Electric moped(Vespa style)
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    climbing on a chopper

    Hi all, I just bought yet another chopper bike and just wondering what size front sprocket would be a good starting point for trying to make a Stingray clone capable of climbing moderately steep hills, it has an 18 tooth rear sprocket and currently a 44 tooth front ring.
    It was a sweet buy they were clearing a left over one for $34.95 au at the local Target store. I have stripped all but 2 small flame stickers on the rear stays and it looks great in gloss black.
    One of the other choppers that I use on road has a small electric assist to allow hill climbing without blowing out a knee and I have considered doing the same to the new one but would like to try and keep it HPV only.
    I took it for a 25K spin last night on the bike track and it rides brilliantly but is definately to high geared for hill climbing.
    Greenspeed GLR trike
    JC-70 trike
    Avanti Atomic Disc mtb
    Custom electric chopper

  2. #2
    Senior Member Brian's Avatar
    Join Date
    Nov 2004
    Location
    Between the mountains and the lake.
    My Bikes
    8 bikes - one for each day of the week!
    Posts
    16,745
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    Look for a 39T on ebay, or see if your LBS has one in their crap bin. Shouldn't be too hard to find.

  3. #3
    Senior Member
    Join Date
    Feb 2005
    Location
    Pleasanton Tx
    My Bikes
    old,older.and very old
    Posts
    1,018
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    Also look for a 20 or 22 tooth rear sprocket off a three speed.The 3 spline sprockets interchange.---sam

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