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Speedometer ratio question

Dyna Models

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Old Mar 2nd, 2009, 02:34 PM     #1
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Speedometer ratio question

I have a 1985 lowrider with 3.5 fat bob tanks. It has the small speedometer and a separate tach which is stock. It has the speedometer gear on the front wheel. I'm looking to convert to to the single large speedometer. How do I know if I need a 2.1 or a 1.1? Any help and links would be great. I found some good buys on Ebay but I'm not sure if they will work.
THX
Dan
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Old Mar 2nd, 2009, 02:37 PM     #2
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Re: Speedometer ratio question

I think I would raise the bike and turn the front wheel one turn while measuring how many turns the cable end makes.
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Old Mar 2nd, 2009, 03:01 PM     #3
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Re: Speedometer ratio question

Good idea I'll give it a shot. Thanks for the post
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Old Mar 2nd, 2009, 09:18 PM     #4
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Re: Speedometer ratio question

It has a 19 in front wheel
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Old Mar 3rd, 2009, 12:36 PM     #5
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Re: Speedometer ratio question

Thank biglew55
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