speedo way off after wheel change

Discussion in 'Wheels' started by nascar7613, Jul 3, 2014.

  1. nascar7613

    nascar7613 Active Member

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    I have a 1995 Bad Boy. Changed out the front wheel to a 21" Now my speedo pegs out at low speed. It has a wheel driven cable type speedo. Is there a different speedo drive I can install to correct the problem or is there a gear kit to install in my speedo drive?
     
  2. Breeze3at

    Breeze3at Well-Known Member

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    If your stock front wheel was 19", you need to get the speedo drive unit for a 21" front wheel. Dyna Wide Glide, or Softail Custom probably.
     
  3. dbmg

    dbmg Experienced Member

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    Check with dealer you might be able to change out cable gears...
     
  4. tourbox

    tourbox Senior Member

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    Looking at the OEM parts page it came with a 21" wheel originally. What size was on it before the change? Soft Tails have a different speedo ratio than say a WG. I believe the WG is a 2/1 ratio and a Soft Tail is 2240:60 ratio. I don't know for sure what your speedo unit ratio is though. May someone here does or your local HD shop does.
    tourbox
     
  5. fin_676

    fin_676 Experienced Member Staff Member Moderator Contributor

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    The fxstc softail custom and fxdwg dyna wide glide both come with a 21" wheel and are both fitted with 67120-84b speedo drive unit the part number is from the 93-94 parts list that would be my best guess of what may be the best speedo drive unit

    Brian