Rear sprockets ????????

Discussion in 'Touring Models' started by ironmark, Apr 3, 2009.

  1. ironmark

    ironmark Junior Member

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    I heard that the HD put a bigger rear sprocket on the 09 models then they put on the 07-08 models . Is this because they put a bigger tire on the 09 models or was it to improve low end tourqe ??? Will the bigger sprocket fit the 07-08 models without a belt change ? What I heard was that the 07-08 models lacked power @ take off & the MOCO tried to correct the problem with a bigger rear sprocket . Is the info I am getting correct ?
     
  2. nytemuvr

    nytemuvr Member

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    You would put a smaller spocket on for more lowend. Smaller sprocket would be like putting a higher numericaly rear gear in a car(from a 3.55 to a 4.10). Don't know about the new bicks though.
     
  3. kemo

    kemo R.I.P

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    You are wrong with putting a smaller rear sprocket on for more low end. Put a small sprocket on the front or a larger rear for power. For speed or to reduce RPM you use a small rear or a large front.
     
  4. glider

    glider Veteran Member

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    The change was in the rear sprocket on the 09 models. The sprocket is larger (more cogs) only by one or two giving it more bottom end from a standing start which is where the previous 96's showed a deficiency.
     
  5. ironmark

    ironmark Junior Member

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    So if I wanted to change the sprocket would I have to change the belt ? I am going to need a new rear tire soon & I thought it would be a good time to do the change & being able to use the same belt would make it a easy upgrade .
     
  6. hntwrobin

    hntwrobin Active Member

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    yes you would need to change the belt. Check the charts and see what will fit. I had changed the sprockets on my 99 RK and needed to go from a 139 tooth belt to a 135.
     
  7. glider

    glider Veteran Member

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    Lew, 07 was the one piece, in 08 the IDS was a factory installed pulley and carried over to the 09 bikes.
     
  8. glider

    glider Veteran Member

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    OK gotcha, misunderstood (not hard for me) :D
     
  9. ironmark

    ironmark Junior Member

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    From what I understand the 08 is 36 teeth , in 09 it went to 38 teeth but I am not sure if this info is correct . If the 09 sprocket does,nt work on the 07-08 can I get a sprocket designed for the 07-08 that would be a little bigger ? Also if the spocket is just 2 teeth larger would there still be a need to change the belt or would you have to use the belt from the 09 ?
     
  10. glider

    glider Veteran Member

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    I think you have the numbers incorrect. It's more like 70 and the softail is 65. We're talking about the rear sprocket.

    Looks like Lew nailed it again :D