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91 fxr super glide speedo trouble

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Old Jun 8, 2013 | 09:03 PM
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Default 91 fxr super glide speedo trouble

Please forgive me if I am posting this in the wrong area I am brand new to the forum. Here is my problem…
I have a 91 FXR I bought a 2:1 mini speedo made by custom chrome installed it with new cable and it seemed to work properly until I tested it against my Tom Tom GPS …
Anything below 50 mph my gauge is five mph ahead of the GPS… Anything 60 mph and above gauge is running about 10 mph ahead of the GPS… So my question is why and is there a way to fix it maybe with a better mini speedo? My front wheel is 19" I don't know if this is the stock size for the 91 FXR… please someone help me figure this out! I can understand a couple mph off but to be a complete 10 mph off doesn't seem right to me… could the drive gear and the front wheel be wrong or possibly bad? Any help would be greatly appreciated
 
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Old Jun 9, 2013 | 09:05 AM
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Any suggestions ??
 
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Old Jun 9, 2013 | 09:37 AM
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Wrong ratio for the stock speedo drive on the front wheel. Get the right ratio for your speedo & wheel size & the correct spaceing for the fxr front wheel. Costom Chrome sells them.
 
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Old Jun 9, 2013 | 09:47 AM
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Originally Posted by kennyflhr
Wrong ratio for the stock speedo drive on the front wheel. Get the right ratio for your speedo & wheel size & the correct spaceing for the fxr front wheel. Costom Chrome sells them.
+1...Have a look at page 8 of their catalog

"Motor Factory Speedometer Drive Units
Stock replacement drive units for all models with front wheel drive speedometers
from 73-98. They work great with our 2-to-1 ratio speedometers.
26724 Fits Sportster, FX, FXR and Dyna Glide models with Narrow Glide 19" front
wheels from 84-94, left, 8 mm (repl. OEM 67127-84A)"
 
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Old Jun 9, 2013 | 12:32 PM
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So what ratio do I need for front wheel this is where I get confused
 
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Old Jun 9, 2013 | 12:35 PM
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Thank you for your reply… so the speedo I bought is a 2:1 mini speedo custom chrome my front wheel is 19" so what ratio drive do I need to order and what size spacer do I need?
 
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Old Jun 9, 2013 | 12:50 PM
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Sorry I just looked at page 8 and I found the one I needed but my question is do you have to order the spacer separate or does it come with it
 
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Old Jun 9, 2013 | 01:13 PM
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26724 I believe is the speedo gear I need but does that come with the spacer or do I need to order that separate ???
 
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Old Jun 9, 2013 | 01:32 PM
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Originally Posted by Dustinleras
26724 I believe is the speedo gear I need but does that come with the spacer or do I need to order that separate ???
Sorry I cannot tell you. Perhaps you could contact Custom Chrome and ask?
 
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